ocda + outputs split: module/import + dub.json fixups

Modules and imports rewritten to sisudoc.ocda.* and
sisudoc.outputs.*; dub.json excludedSourceFiles and the
spine:abstraction sub-package sourcePaths collapsed to
./src/sisudoc/ocda.

Verified: nix build .#spine-overlay-ldc clean.

(assisted by Claude-Code)

30 files changed, 292 insertions, 302 deletions

diff --git a/org/compile_time_info.org b/org/compile_time_info.org
index bc2bcae..676f061 100644
--- a/org/compile_time_info.org
+++ b/org/compile_time_info.org
@@ -27,14 +27,14 @@ version(Windows) {} else { ... }
 
 ** _module template_ :module:compile_time_info:
 
-#+HEADER: :tangle "../src/sisudoc/conf/compile_time_info.d"
+#+HEADER: :tangle "../src/sisudoc/outputs/conf/compile_time_info.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
 /++
   compile_time_info
 +/
-module sisudoc.conf.compile_time_info;
+module sisudoc.outputs.conf.compile_time_info;
 @safe:
 template CompileTimeInfo() {
   <<spine_compile_time_info_0>>
diff --git a/org/config_dub.org b/org/config_dub.org
index b1700e5..d82a5ac 100644
--- a/org/config_dub.org
+++ b/org/config_dub.org
@@ -47,11 +47,7 @@
   "license":                   "AGPL-3.0+",
   "targetPath":                "./bin",
   "sourcePaths":               [ "./src/sisudoc" ],
-  "excludedSourceFiles":       [
-                                 "src/sisudoc/abstraction/*",
-                                 "src/sisudoc/meta/*",
-                                 "src/sisudoc/io_in/*"
-  ],
+  "excludedSourceFiles":       [ "./src/sisudoc/ocda/*" ],
   "importPaths":               [ "./views" ],
   "stringImportPaths":         [ "./views" ],
   "buildRequirements":         [ "allowWarnings" ],
@@ -98,14 +94,8 @@
       "copyright":     "Copyright © 2015 - 2026 Ralph Amissah",
       "license":       "AGPL-3.0+",
       "targetType":    "library",
-      "sourcePaths": [
-        "./src/sisudoc/abstraction",
-        "./src/sisudoc/meta",
-        "./src/sisudoc/io_in"
-      ],
-      "importPaths": [
-        "./src/sisudoc"
-      ],
+      "sourcePaths": [ "./src/sisudoc/ocda" ],
+      "importPaths": [ "./src/sisudoc" ],
       "buildRequirements": [ "allowWarnings" ],
       "dependencies": {
         "spine:dyaml":        "*",
diff --git a/org/default_imports.org b/org/default_imports.org
index 1df7ab4..4f03212 100644
--- a/org/default_imports.org
+++ b/org/default_imports.org
@@ -20,11 +20,11 @@
 * imports for _meta_ :meta:
 ** package dir
 
-#+HEADER: :tangle "../src/sisudoc/meta/package.d"
+#+HEADER: :tangle "../src/sisudoc/ocda/meta/package.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
-module sisudoc.meta;
+module sisudoc.ocda.meta;
 <<imports_for_meta_general>>
 #+END_SRC
 
@@ -32,7 +32,7 @@ module sisudoc.meta;
 
 #+NAME: imports_for_meta_general
 #+BEGIN_SRC d
-public import sisudoc.meta.defaults;
+public import sisudoc.ocda.meta.defaults;
 /+ std +/
 public import std.array;
 public import std.exception;
@@ -49,11 +49,11 @@ public import std.conv : to;
 * imports for _output_ :output:
 ** package dir
 
-#+HEADER: :tangle "../src/sisudoc/io_out/package.d"
+#+HEADER: :tangle "../src/sisudoc/outputs/io_out/package.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
-module sisudoc.io_out;
+module sisudoc.outputs.io_out;
 <<imports_for_output_general>>
 #+END_SRC
 
@@ -74,10 +74,10 @@ public import std.string;
 public import std.typecons;
 // public import std.uni;
 public import std.utf;
-public import sisudoc.share.defaults;
-public import sisudoc.io_in.paths_source;
-public import sisudoc.io_out.defaults;
-public import sisudoc.io_out.paths_output;
+public import sisudoc.outputs.share.defaults;
+public import sisudoc.ocda.io_in.paths_source;
+public import sisudoc.outputs.io_out.defaults;
+public import sisudoc.outputs.io_out.paths_output;
 #+END_SRC
 
 * org includes
diff --git a/org/default_misc.org b/org/default_misc.org
index a2a17a1..87ca048 100644
--- a/org/default_misc.org
+++ b/org/default_misc.org
@@ -21,14 +21,14 @@
 ** _module template_
 
 #+NAME: tangle_defaults
-#+HEADER: :tangle "../src/sisudoc/meta/defaults.d"
+#+HEADER: :tangle "../src/sisudoc/ocda/meta/defaults.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
 /++
   default settings
 +/
-module sisudoc.meta.defaults;
+module sisudoc.ocda.meta.defaults;
 @safe:
 <<meta_defaults_template_node>>
 <<meta_defaults_template_curate_metadata>>
@@ -172,14 +172,14 @@ template spineBiblio() {
 ** _module template_
 
 #+NAME: tangle_defaults
-#+HEADER: :tangle "../src/sisudoc/io_out/defaults.d"
+#+HEADER: :tangle "../src/sisudoc/outputs/io_out/defaults.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
 /++
   default settings
 +/
-module sisudoc.io_out.defaults;
+module sisudoc.outputs.io_out.defaults;
 @safe:
 <<defaults_template_init_flags>>
 <<defaults_template_markup>>
diff --git a/org/default_paths.org b/org/default_paths.org
index c0b7e43..a6cf19a 100644
--- a/org/default_paths.org
+++ b/org/default_paths.org
@@ -20,7 +20,7 @@
 * source paths
 ** _module template_                                      :module:paths_source:
 
-#+HEADER: :tangle "../src/sisudoc/io_in/paths_source.d"
+#+HEADER: :tangle "../src/sisudoc/ocda/io_in/paths_source.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
@@ -29,7 +29,7 @@
   - read config files<BR>
   meta_config_files.d
 +/
-module sisudoc.io_in.paths_source;
+module sisudoc.ocda.io_in.paths_source;
 @safe:
 import std.array;
 import std.file;
@@ -37,8 +37,8 @@ import std.path;
 import std.regex;
 import std.stdio;
 import std.conv : to;
-import sisudoc.meta.defaults;
-import sisudoc.meta.rgx_files;
+import sisudoc.ocda.meta.defaults;
+import sisudoc.ocda.meta.rgx_files;
 <<template_paths_src_0>>
 <<template_paths_src_1>>
 <<template_paths_src_2>>
@@ -979,20 +979,20 @@ template spinePathsPods() {
 * output paths
 ** _module template_                                      :module:paths_output:
 
-#+HEADER: :tangle "../src/sisudoc/io_out/paths_output.d"
+#+HEADER: :tangle "../src/sisudoc/outputs/io_out/paths_output.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
 /++
   default settings
 +/
-module sisudoc.io_out.paths_output;
+module sisudoc.outputs.io_out.paths_output;
 @safe:
 import std.array;
 import std.path;
 import std.regex;
 import std.stdio;
-import sisudoc.meta.rgx_files;
+import sisudoc.ocda.meta.rgx_files;
 <<template_paths_out_0>>
 <<template_paths_out_1>>
 <<template_paths_url>>
diff --git a/org/default_regex.org b/org/default_regex.org
index 6c7c045..430828b 100644
--- a/org/default_regex.org
+++ b/org/default_regex.org
@@ -34,14 +34,14 @@ https://dlang.org/phobos/std_regex.html
 
 ** _module template_ :module:
 
-#+HEADER: :tangle "../src/sisudoc/meta/rgx.d"
+#+HEADER: :tangle "../src/sisudoc/ocda/meta/rgx.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
 /++
   regex: regular expressions used in sisu document parser
 +/
-module sisudoc.meta.rgx;
+module sisudoc.ocda.meta.rgx;
 @safe:
 static template spineRgxIn() {
   static struct RgxI {
@@ -472,14 +472,14 @@ https://dlang.org/phobos/std_regex.html
 
 ** _module template_ :module:output:
 
-#+HEADER: :tangle "../src/sisudoc/io_out/rgx.d"
+#+HEADER: :tangle "../src/sisudoc/outputs/io_out/rgx.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
 /++
   regex: regular expressions used in sisu document parser
 +/
-module sisudoc.io_out.rgx;
+module sisudoc.outputs.io_out.rgx;
 @safe:
 static template spineRgxOut() {
   static struct RgxO {
@@ -678,14 +678,14 @@ static table_delimiter_row                      = ctRegex!("[ ]*\n", "mg");
 
 ** files filename (& path) (including insert file) :insert:file:path:filename:
 
-#+HEADER: :tangle "../src/sisudoc/meta/rgx_files.d"
+#+HEADER: :tangle "../src/sisudoc/ocda/meta/rgx_files.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
 /++
   regex: regular expressions used in sisu document parser
 +/
-module sisudoc.meta.rgx_files;
+module sisudoc.ocda.meta.rgx_files;
 @safe:
 static template spineRgxFiles() {
   static struct RgxFiles {
@@ -712,14 +712,14 @@ static src_formalised_file_path_parts           = ctRegex!(`(?P<pth>(?:[/a-zA-Z0
 
 ** _module template yaml tags
 
-#+HEADER: :tangle "../src/sisudoc/meta/rgx_yaml.d"
+#+HEADER: :tangle "../src/sisudoc/ocda/meta/rgx_yaml.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
 /++
   regex: regular expressions used in sisu document parser
 +/
-module sisudoc.meta.rgx_yaml;
+module sisudoc.ocda.meta.rgx_yaml;
 @safe:
 static template spineRgxYamlTags() {
   static struct RgxYaml {
@@ -739,14 +739,14 @@ static yaml_tag_is_seq                          = ctRegex!(`:seq$`);
 ** special characters
 *** xhtml special characters template
 
-#+HEADER: :tangle "../src/sisudoc/io_out/rgx_xhtml.d"
+#+HEADER: :tangle "../src/sisudoc/outputs/io_out/rgx_xhtml.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
 /++
   regex: regular expressions used in sisu document parser
 +/
-module sisudoc.io_out.rgx_xhtml;
+module sisudoc.outputs.io_out.rgx_xhtml;
 @safe:
 static template spineRgxXHTML() {
   static struct RgxXHTML {
@@ -768,14 +768,14 @@ static line_break                               = ctRegex!(` [\\]{2}`, "m"); //
 
 *** LaTeX special characters template
 
-#+HEADER: :tangle "../src/sisudoc/io_out/rgx_latex.d"
+#+HEADER: :tangle "../src/sisudoc/outputs/io_out/rgx_latex.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
 /++
   regex: regular expressions used in sisu document parser
 +/
-module sisudoc.io_out.rgx_latex;
+module sisudoc.outputs.io_out.rgx_latex;
 @safe:
 static template spineRgxLSC() {
   static struct RgxLSC {
diff --git a/org/default_shared_snippets.org b/org/default_shared_snippets.org
index 4eb7972..a4a09cc 100644
--- a/org/default_shared_snippets.org
+++ b/org/default_shared_snippets.org
@@ -20,11 +20,11 @@
 * html snippet
 ** _module template_ :module:
 
-#+HEADER: :tangle "../src/sisudoc/io_out/html_snippet.d"
+#+HEADER: :tangle "../src/sisudoc/outputs/io_out/html_snippet.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
-module sisudoc.io_out.html_snippet;
+module sisudoc.outputs.io_out.html_snippet;
 @safe:
 template htmlSnippet() {
   import std.file;
@@ -32,9 +32,9 @@ template htmlSnippet() {
   import std.format;
   import std.uri;
   import std.conv : to;
-  import sisudoc.io_out.rgx;
-  import sisudoc.meta.rgx_files;
-  import sisudoc.io_out.rgx_xhtml;
+  import sisudoc.outputs.io_out.rgx;
+  import sisudoc.ocda.meta.rgx_files;
+  import sisudoc.outputs.io_out.rgx_xhtml;
   auto format_html_blank_page_guide_home()(
     string css_style,
     string home_url,
@@ -81,14 +81,14 @@ template htmlSnippet() {
 * shared
 ** _module template_ :module:shared:
 
-#+HEADER: :tangle "../src/sisudoc/share/defaults.d"
+#+HEADER: :tangle "../src/sisudoc/outputs/share/defaults.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
 /++
   shared default settings
 +/
-module sisudoc.share.defaults;
+module sisudoc.outputs.share.defaults;
 @safe:
 <<shared_messages>>
 #+END_SRC
diff --git a/org/in_source_files.org b/org/in_source_files.org
index bf53d10..1aab3a7 100644
--- a/org/in_source_files.org
+++ b/org/in_source_files.org
@@ -20,7 +20,7 @@
 * A. get _config file_, read in (.readText) [#A]
 ** _module template_ :module:config_files:
 
-#+HEADER: :tangle "../src/sisudoc/io_in/read_config_files.d"
+#+HEADER: :tangle "../src/sisudoc/ocda/io_in/read_config_files.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
@@ -29,14 +29,14 @@
   - read config files<BR>
   meta_config_files.d
 +/
-module sisudoc.io_in.read_config_files;
+module sisudoc.ocda.io_in.read_config_files;
 @safe:
 import std.file;
 import std.path;
-import sisudoc.meta;
-import sisudoc.io_in.paths_source;
-import sisudoc.meta.rgx_files;
-import sisudoc.meta.rgx;
+import sisudoc.ocda.meta;
+import sisudoc.ocda.io_in.paths_source;
+import sisudoc.ocda.meta.rgx_files;
+import sisudoc.ocda.meta.rgx;
 <<meta_config_file_hub_read_site_config>>
 <<meta_config_file_hub_read_document_config>>
 <<meta_config_file_hub_read_site_yaml>>
@@ -186,10 +186,10 @@ webserv:
 static template readConfigDoc() {
   import std.file;
   import std.path;
-  import sisudoc.meta;
-  import sisudoc.io_in.paths_source;
-  import sisudoc.meta.rgx_files;
-  import sisudoc.meta.rgx;
+  import sisudoc.ocda.meta;
+  import sisudoc.ocda.io_in.paths_source;
+  import sisudoc.ocda.meta.rgx_files;
+  import sisudoc.ocda.meta.rgx;
   @system final auto readConfigDoc(M,E)(M _manifested, E _env) {
     mixin spineRgxIn;
     static auto rgx = RgxI();
@@ -247,10 +247,10 @@ static template readConfigDoc() {
 static template configReadSiteYAML() {
   import std.file;
   import std.path;
-  import sisudoc.meta;
-  import sisudoc.io_in.paths_source;
-  import sisudoc.meta.rgx_files;
-  import sisudoc.meta.rgx;
+  import sisudoc.ocda.meta;
+  import sisudoc.ocda.io_in.paths_source;
+  import sisudoc.ocda.meta.rgx_files;
+  import sisudoc.ocda.meta.rgx;
   final YAMLDocument configReadSiteYAML(M,E)(M _manifested, E _env) {
     string _configuration = configReadInSiteYAML!()(_manifested, _env);
     auto _conf_file_details = configFilePaths!()(_manifested, _env);
@@ -262,8 +262,8 @@ static template configReadSiteYAML() {
 static template configReadDocYAML() {
   import std.file;
   import std.path;
-  import sisudoc.meta;
-  import sisudoc.io_in.paths_source;
+  import sisudoc.ocda.meta;
+  import sisudoc.ocda.io_in.paths_source;
   final YAMLDocument configReadDocYAML(M,E)(M _manifested, E _env) {
     string _configuration = configReadInDocYAML!()(_manifested, _env);
     auto _conf_file_details = configFilePaths!()(_manifested, _env);
@@ -277,7 +277,7 @@ static template configReadDocYAML() {
 * B. get _markup source_, read file (.readText) [#A]:module:source_files:
 ** _module template_
 
-#+HEADER: :tangle "../src/sisudoc/io_in/read_source_files.d"
+#+HEADER: :tangle "../src/sisudoc/ocda/io_in/read_source_files.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
@@ -286,16 +286,16 @@ static template configReadDocYAML() {
   - open markup files<BR>
   - if master file scan for addional files to import/insert
 +/
-module sisudoc.io_in.read_source_files;
+module sisudoc.ocda.io_in.read_source_files;
 @safe:
 template spineRawMarkupContent() {
   import std.digest.sha;
   import std.file;
   import std.path;
-  import sisudoc.meta;
-  import sisudoc.io_in.paths_source;
-  import sisudoc.meta.rgx_files;
-  import sisudoc.meta.rgx;
+  import sisudoc.ocda.meta;
+  import sisudoc.ocda.io_in.paths_source;
+  import sisudoc.ocda.meta.rgx_files;
+  import sisudoc.ocda.meta.rgx;
   mixin spineRgxIn;
   static auto rgx = RgxI();
   mixin spineRgxFiles;
diff --git a/org/in_zip_pod.org b/org/in_zip_pod.org
index f2903c4..9beae6e 100644
--- a/org/in_zip_pod.org
+++ b/org/in_zip_pod.org
@@ -19,7 +19,7 @@
 
 * read zip
 
-#+HEADER: :tangle "../src/sisudoc/io_in/read_zip_pod.d"
+#+HEADER: :tangle "../src/sisudoc/ocda/io_in/read_zip_pod.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
@@ -28,7 +28,7 @@
   - extract pod zip archives to temp directory for processing<BR>
   - validate zip entries for security (path traversal, size limits)
 +/
-module sisudoc.io_in.read_zip_pod;
+module sisudoc.ocda.io_in.read_zip_pod;
 @safe:
 template spineExtractZipPod() {
   import std.algorithm : canFind;
diff --git a/org/meta_conf_make_meta.org b/org/meta_conf_make_meta.org
index b39e54f..f9c13ef 100644
--- a/org/meta_conf_make_meta.org
+++ b/org/meta_conf_make_meta.org
@@ -214,16 +214,16 @@ import std.typecons;
 import std.uni;
 import std.utf;
 import std.conv : to;
-import sisudoc.meta.conf_make_meta_structs;
+import sisudoc.ocda.meta.conf_make_meta_structs;
 #+END_SRC
 
 ** struct ConfComposite
 
-#+HEADER: :tangle "../src/sisudoc/meta/conf_make_meta_structs.d"
+#+HEADER: :tangle "../src/sisudoc/ocda/meta/conf_make_meta_structs.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
-module sisudoc.meta.conf_make_meta_structs;
+module sisudoc.ocda.meta.conf_make_meta_structs;
 @safe:
 <<meta_defaults_template_structs_init>>
 <<meta_defaults_template_structs_setup>>
@@ -247,9 +247,9 @@ import std.string;
 import std.typecons;
 import std.utf;
 import std.conv : to;
-import sisudoc.meta.defaults;
-import sisudoc.meta.rgx_yaml;
-import sisudoc.meta.rgx;
+import sisudoc.ocda.meta.defaults;
+import sisudoc.ocda.meta.rgx_yaml;
+import sisudoc.ocda.meta.rgx;
 mixin spineRgxIn;
 static auto rgx = RgxI();
 mixin spineRgxYamlTags;
@@ -607,7 +607,7 @@ string check_input_markup()(
 
 ** _module template_
 
-#+HEADER: :tangle "../src/sisudoc/meta/conf_make_meta_yaml.d"
+#+HEADER: :tangle "../src/sisudoc/ocda/meta/conf_make_meta_yaml.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
@@ -615,7 +615,7 @@ string check_input_markup()(
   yaml headers<BR>
   extract yaml header return struct
 +/
-module sisudoc.meta.conf_make_meta_yaml;
+module sisudoc.ocda.meta.conf_make_meta_yaml;
 @safe:
 template contentYAMLtoSpineStruct() {
   import std.algorithm;
@@ -628,10 +628,10 @@ template contentYAMLtoSpineStruct() {
   import std.typecons;
   import std.utf;
   import std.conv : to;
-  import sisudoc.meta.conf_make_meta_structs;
-  import sisudoc.meta.defaults;
-  import sisudoc.meta.rgx_yaml;
-  import sisudoc.meta.rgx;
+  import sisudoc.ocda.meta.conf_make_meta_structs;
+  import sisudoc.ocda.meta.defaults;
+  import sisudoc.ocda.meta.rgx_yaml;
+  import sisudoc.ocda.meta.rgx;
   ConfComposite _struct_composite;
   @system ConfComposite contentYAMLtoSpineStruct(C,Y,M,O,Cfg)(
     C      _struct_composite,
@@ -1432,7 +1432,7 @@ if ("rights" in _yaml
 * JSON to spineStruct :module:conf_make_meta:json:
 ** _module template_
 
-#+HEADER: :tangle "../src/sisudoc/meta/conf_make_meta_json.d"
+#+HEADER: :tangle "../src/sisudoc/ocda/meta/conf_make_meta_json.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
@@ -1440,7 +1440,7 @@ if ("rights" in _yaml
   json headers<BR>
   extract json header return json
 +/
-module sisudoc.meta.conf_make_meta_json;
+module sisudoc.ocda.meta.conf_make_meta_json;
 @safe:
 static template contentJSONtoSpineStruct() {
   import std.algorithm;
@@ -1452,10 +1452,10 @@ static template contentJSONtoSpineStruct() {
   import std.typecons;
   import std.utf;
   import std.conv : to;
-  import sisudoc.meta.conf_make_meta_structs;
-  import sisudoc.meta.conf_make_meta_json;
-  import sisudoc.meta.defaults;
-  import sisudoc.meta.rgx;
+  import sisudoc.ocda.meta.conf_make_meta_structs;
+  import sisudoc.ocda.meta.conf_make_meta_json;
+  import sisudoc.ocda.meta.defaults;
+  import sisudoc.ocda.meta.rgx;
   ConfComposite _struct_composite;
   auto contentJSONtoSpineStruct(C,J,M)(C _struct_composite, J _json, M _manifested, string _identifier) {
     mixin spineRgxIn;
@@ -2109,8 +2109,8 @@ if ("rights" in _json.object) {
 #+BEGIN_SRC d
 template configParseYAMLreturnSpineStruct() {
   import dyaml;
-  import sisudoc.meta.conf_make_meta_structs;
-  import sisudoc.meta.conf_make_meta_json;
+  import sisudoc.ocda.meta.conf_make_meta_structs;
+  import sisudoc.ocda.meta.conf_make_meta_json;
   mixin contentYAMLtoSpineStruct;
   @system ConfComposite configParseYAMLreturnSpineStruct(T,M,O,Cfg)(
     T             _document_struct,
@@ -2154,10 +2154,10 @@ template docHeaderMakeAndMetaTupYamlExtractAndConvertToStruct() {
   import std.utf;
   import std.conv : to;
   import dyaml;
-  import sisudoc.meta.conf_make_meta_structs;
-  import sisudoc.meta.conf_make_meta_json;
-  import sisudoc.meta.rgx_yaml;
-  import sisudoc.meta.rgx;
+  import sisudoc.ocda.meta.conf_make_meta_structs;
+  import sisudoc.ocda.meta.conf_make_meta_json;
+  import sisudoc.ocda.meta.rgx_yaml;
+  import sisudoc.ocda.meta.rgx;
   mixin spineRgxIn;
   mixin contentJSONtoSpineStruct;
   static auto rgx = RgxI();
diff --git a/org/meta_debugs.org b/org/meta_debugs.org
index 53a63ac..9604825 100644
--- a/org/meta_debugs.org
+++ b/org/meta_debugs.org
@@ -20,14 +20,14 @@
 * abstraction debugs :module:spine:meta_doc_debugs:
 ** _module template_
 
-#+HEADER: :tangle "../src/sisudoc/meta/doc_debugs.d"
+#+HEADER: :tangle "../src/sisudoc/ocda/meta/doc_debugs.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
 /++
   output debugs
 +/
-module sisudoc.meta.doc_debugs;
+module sisudoc.ocda.meta.doc_debugs;
 template spineDebugs() {
   <<debug_imports>>
   auto spineDebugs(S,T)(
@@ -52,8 +52,8 @@ template spineDebugs() {
 
 #+NAME: debug_imports
 #+BEGIN_SRC d
-import sisudoc.meta.defaults;
-import sisudoc.meta.rgx_files;
+import sisudoc.ocda.meta.defaults;
+import sisudoc.ocda.meta.rgx_files;
 import std.algorithm;
 import std.array;
 import std.container;
diff --git a/org/ocda.org b/org/ocda.org
index d4da85d..a24e335 100644
--- a/org/ocda.org
+++ b/org/ocda.org
@@ -24,25 +24,25 @@
 
 ** library template :module:metadoc_from_src:
 
-#+HEADER: :tangle "../src/sisudoc/abstraction/package.d"
+#+HEADER: :tangle "../src/sisudoc/ocda/abstraction/package.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
 /++
-  sisudoc.abstraction - public surface of the document-abstraction
+  sisudoc.ocda.abstraction - public surface of the document-abstraction
   library.
 
   Pipeline position: markup -> abstraction -> output.
   This package is the abstraction stage. The output stage lives in
-  sisudoc.io_out and consumes the values produced here.
+  sisudoc.outputs.io_out and consumes the values produced here.
 
   Entry points:
-    - spineAbstraction!() (from sisudoc.meta.metadoc) - A-layer:
+    - spineAbstraction!() (from sisudoc.ocda.meta.metadoc) - A-layer:
         builds the in-memory document object model from a manifest
         (pod path, .sst path). Reads the document body, parses YAML
         headers, returns a struct with .abstraction (the object
         model) and .matters (the conf/meta/src wrapper).
-    - docAbstraction!()   (from sisudoc.meta.metadoc_from_src) -
+    - docAbstraction!()   (from sisudoc.ocda.meta.metadoc_from_src) -
         B-layer: builds the abstraction from already-loaded body
         text plus a pre-built ConfComposite. Pure, no file I/O.
 
@@ -51,32 +51,32 @@
   directly.
 
   Serialisation:
-    - sisudoc.abstraction.ssp - PEG-parsable text serialisation of
+    - sisudoc.ocda.abstraction.ssp - PEG-parsable text serialisation of
         the abstraction (the .ssp format). See specs/doc-abstraction-
         format/ for the format reference.
 
   This file is a re-export-only surface. No logic lives here; it
-  exists so external consumers can `import sisudoc.abstraction;` and
+  exists so external consumers can `import sisudoc.ocda.abstraction;` and
   reach the entry points without depending on spine's directory
   layout.
 +/
-module sisudoc.abstraction;
+module sisudoc.ocda.abstraction;
 @safe:
-public import sisudoc.meta.metadoc;          // spineAbstraction (A-layer)
-public import sisudoc.meta.metadoc_from_src; // docAbstraction   (B-layer)
-public import sisudoc.abstraction.ssp;       // spineAbstractionTxt (.ssp)
+public import sisudoc.ocda.meta.metadoc;          // spineAbstraction (A-layer)
+public import sisudoc.ocda.meta.metadoc_from_src; // docAbstraction   (B-layer)
+public import sisudoc.ocda.abstraction.ssp;       // spineAbstractionTxt (.ssp)
 #+END_SRC
 
 ** _module template_ :module:metadoc_from_src:
 
-#+HEADER: :tangle "../src/sisudoc/meta/metadoc_from_src.d"
+#+HEADER: :tangle "../src/sisudoc/ocda/meta/metadoc_from_src.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
 // document abstraction:
 // abstraction of sisu markup for downstream processing
 // metadoc_from_src.d
-module sisudoc.meta.metadoc_from_src;
+module sisudoc.ocda.meta.metadoc_from_src;
 @safe:
 template docAbstraction() {
   <<docInitialize>>
@@ -104,12 +104,12 @@ import std.digest.sha;
 import std.file;
 import std.json;
 import std.path;
-import sisudoc.meta;
-import sisudoc.meta.defaults;
-import sisudoc.meta.rgx;
-import sisudoc.meta.metadoc_object_setter;
-import sisudoc.meta.rgx;
-public import sisudoc.meta.metadoc_from_src_functions;
+import sisudoc.ocda.meta;
+import sisudoc.ocda.meta.defaults;
+import sisudoc.ocda.meta.rgx;
+import sisudoc.ocda.meta.metadoc_object_setter;
+import sisudoc.ocda.meta.rgx;
+public import sisudoc.ocda.meta.metadoc_from_src_functions;
 mixin docAbstractionFunctions;
 #+END_SRC
 
diff --git a/org/ocda_functions.org b/org/ocda_functions.org
index 80305aa..5970a06 100644
--- a/org/ocda_functions.org
+++ b/org/ocda_functions.org
@@ -22,14 +22,14 @@ Process markup document, create document abstraction.
 
 ** _module + templates_ :module:metadoc_from_src:
 
-#+HEADER: :tangle "../src/sisudoc/meta/metadoc_from_src_functions.d"
+#+HEADER: :tangle "../src/sisudoc/ocda/meta/metadoc_from_src_functions.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
 // document abstraction:
 // abstraction of sisu markup for downstream processing
 // metadoc_from_src.d
-module sisudoc.meta.metadoc_from_src_functions;
+module sisudoc.ocda.meta.metadoc_from_src_functions;
 @safe:
 template docAbstractionFunctions() {
   <<docInitialize>>
diff --git a/org/ocda_obj_setter.org b/org/ocda_obj_setter.org
index 64dd586..3427c6b 100644
--- a/org/ocda_obj_setter.org
+++ b/org/ocda_obj_setter.org
@@ -23,7 +23,7 @@ set abstracted objects for downstream processing
 
 ** _module template_
 
-#+HEADER: :tangle "../src/sisudoc/meta/metadoc_object_setter.d"
+#+HEADER: :tangle "../src/sisudoc/ocda/meta/metadoc_object_setter.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
@@ -32,7 +32,7 @@ set abstracted objects for downstream processing
   setting of sisu objects for downstream processing
   metadoc_object_setter.d
 +/
-module sisudoc.meta.metadoc_object_setter;
+module sisudoc.ocda.meta.metadoc_object_setter;
 @safe:
 template ObjectSetter() {
   /+ structs +/
diff --git a/org/out_curate_metadata.org b/org/out_curate_metadata.org
index 6650f07..e2cec7a 100644
--- a/org/out_curate_metadata.org
+++ b/org/out_curate_metadata.org
@@ -26,11 +26,11 @@
 
 ** _module template_ metadoc curate
 
-#+HEADER: :tangle "../src/sisudoc/io_out/curate/metadoc_curate.d"
+#+HEADER: :tangle "../src/sisudoc/outputs/io_out/curate/metadoc_curate.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
-module sisudoc.io_out.curate.metadoc_curate;
+module sisudoc.outputs.io_out.curate.metadoc_curate;
 @safe:
 template spineMetaDocCurate() {
   auto spineMetaDocCurate(T,H)(
@@ -50,8 +50,8 @@ template spineMetaDocCurate() {
 
 #+NAME: metadoc_curate_imports
 #+BEGIN_SRC d
-import sisudoc.meta.defaults;
-import sisudoc.meta.rgx;
+import sisudoc.ocda.meta.defaults;
+import sisudoc.ocda.meta.rgx;
 import std.array;
 import std.exception;
 import std.regex;
@@ -95,7 +95,7 @@ writefln(
 
 #+NAME: meta_metadoc_curate
 #+BEGIN_SRC d
-import sisudoc.io_out.paths_output;
+import sisudoc.outputs.io_out.paths_output;
 auto pth_html_abs                  = spinePathsHTML!()(doc_matters.output_path, doc_matters.src.language);
 auto pth_html_rel                  = spineDocRootTreeHTML!()(doc_matters.src.language);
 hvst.curate.title                 = doc_matters.conf_make_meta.meta.title_full;
@@ -119,11 +119,11 @@ return hvst.curate;
 ** _module template_ metadoc curate topics
 *** _module template_ metadoc curate topics template
 
-#+HEADER: :tangle "../src/sisudoc/io_out/curate/metadoc_curate_topics.d"
+#+HEADER: :tangle "../src/sisudoc/outputs/io_out/curate/metadoc_curate_topics.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
-module sisudoc.io_out.curate.metadoc_curate_topics;
+module sisudoc.outputs.io_out.curate.metadoc_curate_topics;
 @safe:
   import std.algorithm;
   import std.array;
@@ -132,8 +132,8 @@ module sisudoc.io_out.curate.metadoc_curate_topics;
   import std.stdio;
   import std.string;
   import std.conv : to;
-  import sisudoc.meta.defaults;
-  import sisudoc.meta.rgx;
+  import sisudoc.ocda.meta.defaults;
+  import sisudoc.ocda.meta.rgx;
   mixin spineCurateMetadata;
   mixin InternalMarkup;
 template spineMetaDocCuratesTopics() {
@@ -447,7 +447,7 @@ foreach(k0;
 
 #+NAME: curated_topics_html_write
 #+BEGIN_SRC d
-import sisudoc.io_out.paths_output;
+import sisudoc.outputs.io_out.paths_output;
 auto out_pth = spinePathsHTML!()(_make_and_meta_struct.conf.output_path, "");
 try {
   auto f = File(out_pth.curate("topics.html"), "w");
@@ -462,11 +462,11 @@ try {
 ** _module template_ metadoc curates authors
 *** _module template_ metadoc curate authors
 
-#+HEADER: :tangle "../src/sisudoc/io_out/curate/metadoc_curate_authors.d"
+#+HEADER: :tangle "../src/sisudoc/outputs/io_out/curate/metadoc_curate_authors.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
-module sisudoc.io_out.curate.metadoc_curate_authors;
+module sisudoc.outputs.io_out.curate.metadoc_curate_authors;
 @safe:
   import std.algorithm;
   import std.array;
@@ -475,8 +475,8 @@ module sisudoc.io_out.curate.metadoc_curate_authors;
   import std.stdio;
   import std.string;
   import std.conv : to;
-  import sisudoc.meta.defaults;
-  import sisudoc.meta.rgx;
+  import sisudoc.ocda.meta.defaults;
+  import sisudoc.ocda.meta.rgx;
   mixin spineCurateMetadata;
   mixin InternalMarkup;
 template spineMetaDocCuratesAuthors() {
@@ -608,7 +608,7 @@ template spineMetaDocCuratesAuthors() {
 
 #+NAME: curated_authors_html_write
 #+BEGIN_SRC d
-import sisudoc.io_out.paths_output;
+import sisudoc.outputs.io_out.paths_output;
 auto out_pth = spinePathsHTML!()(_make_and_meta_struct.conf.output_path, "");
 try {
   auto f = File(out_pth.curate("authors.html"), "w");
diff --git a/org/out_latex.org b/org/out_latex.org
index dd98ca1..88a409a 100644
--- a/org/out_latex.org
+++ b/org/out_latex.org
@@ -22,11 +22,11 @@
 ** _module template_ :latex:pdf:module:
 *** latex.d module & templates
 
-#+HEADER: :tangle "../src/sisudoc/io_out/latex.d"
+#+HEADER: :tangle "../src/sisudoc/outputs/io_out/latex.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
-module sisudoc.io_out.latex;
+module sisudoc.outputs.io_out.latex;
 @safe:
 <<Template_paper_latex>>
 <<Template_output_latex>>
@@ -134,7 +134,7 @@ template outputLaTeX() {
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 template outputLaTeXstyInit() {
-  import sisudoc.io_out;
+  import sisudoc.outputs.io_out;
   auto paper = paperLaTeX;
   <<Function_output_style_write>>
   <<Function_output_stylesheets_get_each_written>>
@@ -218,7 +218,7 @@ void writeOutputLaTeX(T,M)(
       }
     }
     if (!exists(pth_latex.latex_path_stuff ~ "/index.html")) {
-      import sisudoc.io_out.html_snippet;
+      import sisudoc.outputs.io_out.html_snippet;
       mixin htmlSnippet;
       auto f = File(pth_latex.latex_path_stuff ~"/index.html", "w");
       f.writeln(format_html_blank_page_guide_home(
@@ -232,7 +232,7 @@ void writeOutputLaTeX(T,M)(
     }
     // should be in latex init and done just once, doc_matters not passed there though
     if (!exists(pth_latex.base ~ "/index.html")) {
-      import sisudoc.io_out.html_snippet;
+      import sisudoc.outputs.io_out.html_snippet;
       mixin htmlSnippet;
       auto f = File(pth_latex.base ~"/index.html", "w");
       f.writeln(format_html_blank_page_guide_home(
@@ -244,7 +244,7 @@ void writeOutputLaTeX(T,M)(
       ));
     }
     if (!exists(pth_latex.base_sty ~ "/index.html")) {
-      import sisudoc.io_out.html_snippet;
+      import sisudoc.outputs.io_out.html_snippet;
       mixin htmlSnippet;
       auto f = File(pth_latex.base_sty ~"/index.html", "w");
       f.writeln(format_html_blank_page_guide_home(
@@ -669,9 +669,9 @@ import std.file;
 import std.outbuffer;
 import std.uri;
 import std.conv : to;
-import sisudoc.io_out;
-import sisudoc.io_out.rgx;
-import sisudoc.io_out.rgx_latex;
+import sisudoc.outputs.io_out;
+import sisudoc.outputs.io_out.rgx;
+import sisudoc.outputs.io_out.rgx_latex;
 mixin spineRgxOut;
 static auto rgx = RgxO();
 mixin spineRgxLSC;
diff --git a/org/out_metadata.org b/org/out_metadata.org
index ed16d42..dcd7c51 100644
--- a/org/out_metadata.org
+++ b/org/out_metadata.org
@@ -21,11 +21,11 @@
 
 ** _module template_ metadoc document metadata
 
-#+HEADER: :tangle "../src/sisudoc/io_out/metadata.d"
+#+HEADER: :tangle "../src/sisudoc/outputs/io_out/metadata.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
-module sisudoc.io_out.metadata;
+module sisudoc.outputs.io_out.metadata;
 // @safe:
 template outputMetadata() {
   void outputMetadata(T)(T doc_matters) {
@@ -51,7 +51,7 @@ import std.digest.crc;
 import std.digest.sha;
 import std.file;
 import std.format;
-import sisudoc.io_out;
+import sisudoc.outputs.io_out;
 mixin InternalMarkup;
 char[] metadata_;
 #+END_SRC
@@ -61,7 +61,7 @@ char[] metadata_;
 #+NAME: output_metadata
 #+BEGIN_SRC d
 static auto mkup = InlineMarkup();
-import sisudoc.io_out.html_snippet;
+import sisudoc.outputs.io_out.html_snippet;
 mixin htmlSnippet;
 if (doc_matters.opt.action.debug_do) {
   writeln(doc_matters.src.filename_base);
@@ -309,7 +309,7 @@ void metadata_write_output(M)(M doc_matters, char[] metadata_) {
       }
     }
     if (!exists(pth_html.base ~ "/index.html")) {
-      import sisudoc.io_out.html_snippet;
+      import sisudoc.outputs.io_out.html_snippet;
       mixin htmlSnippet;
       auto f = File(pth_html.base ~"/index.html", "w");
       f.writeln(format_html_blank_page_guide_home(
diff --git a/org/out_odt.org b/org/out_odt.org
index 787070c..25feda2 100644
--- a/org/out_odt.org
+++ b/org/out_odt.org
@@ -46,11 +46,11 @@
 
 ** _module template_ :odf:odt:module:
 
-#+HEADER: :tangle "../src/sisudoc/io_out/odt.d" :noweb yes
+#+HEADER: :tangle "../src/sisudoc/outputs/io_out/odt.d" :noweb yes
 #+HEADER: :noweb yes
 #+BEGIN_SRC org
 <<doc_header_including_copyright_and_license>>
-module sisudoc.io_out.odt;
+module sisudoc.outputs.io_out.odt;
 @safe:
 template formatODT() {
   <<output_imports>>
@@ -974,7 +974,7 @@ string table(O,M)(
       }
     }
     if (!exists(pth_odt.base_pth ~ "/index.html")) {
-      import sisudoc.io_out.html_snippet;
+      import sisudoc.outputs.io_out.html_snippet;
       mixin htmlSnippet;
       auto f = File(pth_odt.base_pth ~"/index.html", "w");
       f.writeln(format_html_blank_page_guide_home(
@@ -1040,17 +1040,17 @@ void outputODT(D,I)(
 
 #+NAME: output_imports
 #+BEGIN_SRC d
-import sisudoc.io_out;
-import sisudoc.io_out.rgx;
-import sisudoc.io_out.rgx_xhtml;
+import sisudoc.outputs.io_out;
+import sisudoc.outputs.io_out.rgx;
+import sisudoc.outputs.io_out.rgx_xhtml;
 import std.file;
 import std.outbuffer;
 import std.uri;
 import std.zip;
 import std.conv : to;
-import sisudoc.io_out.create_zip_file;
-import sisudoc.io_out.xmls;
-import sisudoc.io_out.xmls_css;
+import sisudoc.outputs.io_out.create_zip_file;
+import sisudoc.outputs.io_out.xmls;
+import sisudoc.outputs.io_out.xmls_css;
 #+END_SRC
 
 *** make directory tree
@@ -1060,7 +1060,7 @@ import sisudoc.io_out.xmls_css;
 void dirtree(I)(
   I   doc_matters,
 ) {
-  import sisudoc.io_out.paths_output;
+  import sisudoc.outputs.io_out.paths_output;
   auto pth_odt = spinePathsODT!()(doc_matters);
   if (doc_matters.opt.action.debug_do) { /+ (dir tree) +/
     if (!exists(pth_odt.meta_inf_dir("fs"))) {
@@ -1074,7 +1074,7 @@ void dirtree(I)(
     pth_odt.base_pth.mkdirRecurse;
   }
   if (!exists(pth_odt.base_pth ~ "/index.html")) {
-    import sisudoc.io_out.html_snippet;
+    import sisudoc.outputs.io_out.html_snippet;
     mixin htmlSnippet;
     auto f = File(pth_odt.base_pth ~"/index.html", "w");
     f.writeln(format_html_blank_page_guide_home(
@@ -2579,7 +2579,7 @@ void images_cp(M)(
   auto ref              M    doc_matters,
 ) {
   { /+ (copy odt images) +/
-    import sisudoc.io_out.paths_output;
+    import sisudoc.outputs.io_out.paths_output;
     auto pth_odt = spinePathsODT!()(doc_matters);
     foreach (image; doc_matters.srcs.image_list) {
       auto fn_src_in = doc_matters.src.image_dir_path ~ "/" ~ image;
diff --git a/org/out_skel.org b/org/out_skel.org
index d04ed57..63ae481 100644
--- a/org/out_skel.org
+++ b/org/out_skel.org
@@ -21,11 +21,11 @@
 * Skel
 ** outputSkel template
 
-#+HEADER: :tangle "../src/sisudoc/io_out/skel.d"
+#+HEADER: :tangle "../src/sisudoc/outputs/io_out/skel.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
-module sisudoc.io_out.skel;
+module sisudoc.outputs.io_out.skel;
 @safe:
 template outputSkel() {
   <<munge>>
@@ -35,7 +35,7 @@ template outputSkel() {
           M  doc_matters,
   ) {
     import std.stdio;
-    import sisudoc.io_out;
+    import sisudoc.outputs.io_out;
     <<skel_out>>
     skel_out(doc_abstraction, doc_matters);
   }
@@ -87,7 +87,7 @@ void skel_out(D,M)(
 #+BEGIN_SRC d
 template theDocument() {
   import std.stdio;
-  import sisudoc.io_out;
+  import sisudoc.outputs.io_out;
   <<skel_head>>
   <<skel_body_assign_munge>>
   <<skel_tail>>
diff --git a/org/out_sqlite.org b/org/out_sqlite.org
index 9a4c63b..fb19908 100644
--- a/org/out_sqlite.org
+++ b/org/out_sqlite.org
@@ -41,11 +41,11 @@ sudo chown ralph:ralph /var/www
 ** _module, templates_ :module:
 *** template
 
-#+HEADER: :tangle "../src/sisudoc/io_out/sqlite.d"
+#+HEADER: :tangle "../src/sisudoc/outputs/io_out/sqlite.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
-module sisudoc.io_out.sqlite;
+module sisudoc.outputs.io_out.sqlite;
 <<sqlite_imports>>
 <<sqlite_common>>
 <<sqlite_collection>>
@@ -580,9 +580,9 @@ db.close;
 
 #+NAME: sqlite_imports
 #+BEGIN_SRC d
-import sisudoc.io_out;
-import sisudoc.io_out.rgx;
-import sisudoc.io_out.rgx_xhtml;
+import sisudoc.outputs.io_out;
+import sisudoc.outputs.io_out.rgx;
+import sisudoc.outputs.io_out.rgx_xhtml;
 import std.file;
 import std.uri;
 // import std.digest.sha;
diff --git a/org/out_src_abstraction_ocda_ssp.org b/org/out_src_abstraction_ocda_ssp.org
index a17c236..d44db04 100644
--- a/org/out_src_abstraction_ocda_ssp.org
+++ b/org/out_src_abstraction_ocda_ssp.org
@@ -25,11 +25,11 @@
 
 rename source_abstraction_peg_txt.d
 
-#+HEADER: :tangle "../src/sisudoc/abstraction/ssp.d"
+#+HEADER: :tangle "../src/sisudoc/ocda/abstraction/ssp.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
-module sisudoc.abstraction.ssp;
+module sisudoc.ocda.abstraction.ssp;
 @safe:
 
 /+ ↓ write document abstraction as human-readable .ssp text file +/
diff --git a/org/out_src_abstraction_sqlite_db.org b/org/out_src_abstraction_sqlite_db.org
index 4fa7cdb..daf4fb0 100644
--- a/org/out_src_abstraction_sqlite_db.org
+++ b/org/out_src_abstraction_sqlite_db.org
@@ -25,11 +25,11 @@
 
 rename source_abstraction_peg_txt.d
 
-#+HEADER: :tangle "../src/sisudoc/io_out/create_abstraction_db.d"
+#+HEADER: :tangle "../src/sisudoc/outputs/io_out/create_abstraction_db.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
-module sisudoc.io_out.create_abstraction_db;
+module sisudoc.outputs.io_out.create_abstraction_db;
 
 /+ ↓ write document abstraction as per-document sqlite3 database +/
 template spineAbstractionDb() {
@@ -40,7 +40,7 @@ template spineAbstractionDb() {
   import std.string;
   import std.array;
   import d2sqlite3;
-  import sisudoc.io_out.paths_output;
+  import sisudoc.outputs.io_out.paths_output;
 
   void spineAbstractionDb(D)(D doc) {
     auto doc_abstraction = doc.abstraction;
diff --git a/org/out_src_pod.org b/org/out_src_pod.org
index a31937b..678d5ac 100644
--- a/org/out_src_pod.org
+++ b/org/out_src_pod.org
@@ -21,11 +21,11 @@
 * pod
 ** _module template_ :module:
 
-#+HEADER: :tangle "../src/sisudoc/io_out/source_pod.d"
+#+HEADER: :tangle "../src/sisudoc/outputs/io_out/source_pod.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
-module sisudoc.io_out.source_pod;
+module sisudoc.outputs.io_out.source_pod;
 @system: // is not @safe: use: @system: or @trusted:
 template spinePod() {
   <<output_imports>>
@@ -83,10 +83,10 @@ import std.file;
 import std.outbuffer;
 import std.zip;
 import std.conv : to;
-import sisudoc.meta.rgx_files;
-import sisudoc.io_out;
-import sisudoc.io_out.create_zip_file;
-import sisudoc.io_out.xmls;
+import sisudoc.ocda.meta.rgx_files;
+import sisudoc.outputs.io_out;
+import sisudoc.outputs.io_out.create_zip_file;
+import sisudoc.outputs.io_out.xmls;
 #+END_SRC
 
 *** init
@@ -157,7 +157,7 @@ auto pod_zipMakeReady(M,P,S)(M doc_matters, P pths_pod, S _st) {
   } { // bundle abstraction .ssp file (only for --pod2)
     if (doc_matters.opt.action.pod2) {
       if (doc_matters.src.language == doc_matters.pod.manifest_list_of_languages[$-1]) { // wait until all language versions of .ssp generated
-        import sisudoc.io_out.paths_output;
+        import sisudoc.outputs.io_out.paths_output;
         /+ doc_uid_out for any language follows the same pattern, differing
            only in the trailing ".{lng}". Strip the current language to
            reuse the base across all languages. +/
@@ -447,7 +447,7 @@ void podArchive_directory_tree(M,P)(M doc_matters, P pths_pod) { // create direc
     }
   }
   if (!exists(pths_pod.pod_dir_() ~ "/index.html")) {
-    import sisudoc.io_out.html_snippet;
+    import sisudoc.outputs.io_out.html_snippet;
     mixin htmlSnippet;
     auto f = File(pths_pod.pod_dir_() ~"/index.html", "w");
     f.writeln(format_html_blank_page_guide_home(
@@ -516,7 +516,7 @@ void zipArchive(M,F,Z)(M doc_matters, F fn_pod, Z zip) {
 #+NAME: pod_source_files_digests
 #+BEGIN_SRC d
 void zipArchiveDigest(M,F,D)(M doc_matters, F fn_pod, D _digests) {
-  import sisudoc.io_out.paths_output;
+  import sisudoc.outputs.io_out.paths_output;
   auto pths_pod = spinePathsPods!()(doc_matters);
   char[] _zip_digest;
   try {
diff --git a/org/out_text.org b/org/out_text.org
index 2685986..5d0e77d 100644
--- a/org/out_text.org
+++ b/org/out_text.org
@@ -21,11 +21,11 @@
 * Text
 ** outputText template
 
-#+HEADER: :tangle "../src/sisudoc/io_out/text.d"
+#+HEADER: :tangle "../src/sisudoc/outputs/io_out/text.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
-module sisudoc.io_out.text;
+module sisudoc.outputs.io_out.text;
 @safe:
 template outputText() {
   <<munge>>
@@ -35,7 +35,7 @@ template outputText() {
           M  doc_matters,
   ) {
     import std.stdio;
-    import sisudoc.io_out;
+    import sisudoc.outputs.io_out;
     <<text_out>>
     text_out(doc_abstraction, doc_matters);
   }
@@ -87,7 +87,7 @@ void text_out(D,M)(
 #+BEGIN_SRC d
 template theDocument() {
   import std.stdio;
-  import sisudoc.io_out;
+  import sisudoc.outputs.io_out;
   <<text_head>>
   <<text_body_assign_munge>>
   <<text_tail>>
@@ -197,8 +197,8 @@ string text_tail(M)(
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 template munge() {
-  import sisudoc.io_out;
-  import sisudoc.io_out.rgx;
+  import sisudoc.outputs.io_out;
+  import sisudoc.outputs.io_out.rgx;
   import std.stdio;
   import std.conv;
   import std.conv : to;
diff --git a/org/out_xmls.org b/org/out_xmls.org
index a8a268a..36d4b78 100644
--- a/org/out_xmls.org
+++ b/org/out_xmls.org
@@ -22,11 +22,11 @@
 ** format xhtml objects :format:
 *** _module template_ :module:
 
-#+HEADER: :tangle "../src/sisudoc/io_out/xmls.d"
+#+HEADER: :tangle "../src/sisudoc/outputs/io_out/xmls.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
-module sisudoc.io_out.xmls;
+module sisudoc.outputs.io_out.xmls;
 @safe:
 template outputXHTMLs() {
   <<output_imports_xml>>
@@ -90,13 +90,13 @@ import std.file;
 import std.outbuffer;
 import std.uri;
 import std.conv : to;
-import sisudoc.io_out;
-import sisudoc.io_out.rgx;
-import sisudoc.meta.rgx_files;
-import sisudoc.io_out.rgx_xhtml;
-import sisudoc.io_out.create_zip_file;
-import sisudoc.io_out.xmls;
-import sisudoc.io_out.xmls_css;
+import sisudoc.outputs.io_out;
+import sisudoc.outputs.io_out.rgx;
+import sisudoc.ocda.meta.rgx_files;
+import sisudoc.outputs.io_out.rgx_xhtml;
+import sisudoc.outputs.io_out.create_zip_file;
+import sisudoc.outputs.io_out.xmls;
+import sisudoc.outputs.io_out.xmls_css;
 #+END_SRC
 
 **** epub3
@@ -108,12 +108,12 @@ import std.outbuffer;
 import std.uri;
 import std.zip;
 import std.conv : to;
-import sisudoc.io_out;
-import sisudoc.io_out.rgx;
-import sisudoc.io_out.rgx_xhtml;
-import sisudoc.io_out.create_zip_file;
-import sisudoc.io_out.xmls;
-import sisudoc.io_out.xmls_css;
+import sisudoc.outputs.io_out;
+import sisudoc.outputs.io_out.rgx;
+import sisudoc.outputs.io_out.rgx_xhtml;
+import sisudoc.outputs.io_out.create_zip_file;
+import sisudoc.outputs.io_out.xmls;
+import sisudoc.outputs.io_out.xmls_css;
 #+END_SRC
 
 *** misc
@@ -1748,11 +1748,11 @@ string table(O,M)(
 * _html_ [#A] :html:
 ** _module template_ :module:
 
-#+HEADER: :tangle "../src/sisudoc/io_out/html.d"
+#+HEADER: :tangle "../src/sisudoc/outputs/io_out/html.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
-module sisudoc.io_out.html;
+module sisudoc.outputs.io_out.html;
 @safe:
 template outputHTML() {
   <<output_imports_xml>>
@@ -2007,7 +2007,7 @@ scroll_write_output(doc_out, doc.matters);
       }
     }
     if (!exists(pth_html.base ~ "/index.html")) {
-      import sisudoc.io_out.html_snippet;
+      import sisudoc.outputs.io_out.html_snippet;
       mixin htmlSnippet;
       auto f = File(pth_html.base ~"/index.html", "w");
       f.writeln(format_html_blank_page_guide_home(
@@ -2381,7 +2381,7 @@ void css(M)(M doc_matters) {
       f.writeln(css.html_scroll);
     }
     if (!exists(pth_html.css ~ "/index.html")) {
-      import sisudoc.io_out.html_snippet;
+      import sisudoc.outputs.io_out.html_snippet;
       mixin htmlSnippet;
       auto f = File(pth_html.css ~"/index.html", "w");
       f.writeln(format_html_blank_page_guide_home(
@@ -2423,7 +2423,7 @@ void css(M)(M doc_matters) {
       }
     }
     if (!exists(pth_html.image ~ "/index.html")) {
-      import sisudoc.io_out.html_snippet;
+      import sisudoc.outputs.io_out.html_snippet;
       mixin htmlSnippet;
       auto f = File(pth_html.image ~"/index.html", "w");
       f.writeln(format_html_blank_page_guide_home(
@@ -2458,11 +2458,11 @@ void css(M)(M doc_matters) {
 
 ** _module template_ :module:
 
-#+HEADER: :tangle "../src/sisudoc/io_out/epub3.d"
+#+HEADER: :tangle "../src/sisudoc/outputs/io_out/epub3.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
-module sisudoc.io_out.epub3;
+module sisudoc.outputs.io_out.epub3;
 @safe:
 template outputEPub3() {
   <<output_imports_epub>>
@@ -3163,7 +3163,7 @@ zip -0 file.epub mimetype && zip -r -9 file.epub META-INF OEBPS
       pth_epub3.base.mkdirRecurse;
     }
     if (!exists(pth_epub3.base ~ "/index.html")) {
-      import sisudoc.io_out.html_snippet;
+      import sisudoc.outputs.io_out.html_snippet;
       mixin htmlSnippet;
       auto f = File(pth_epub3.base ~"/index.html", "w");
       f.writeln(format_html_blank_page_guide_home(
diff --git a/org/out_xmls_css.org b/org/out_xmls_css.org
index d3a4e7e..3a55def 100644
--- a/org/out_xmls_css.org
+++ b/org/out_xmls_css.org
@@ -21,14 +21,14 @@
 * output css defaults :module:spine:output_xmls_css:
 ** _module template_
 
-#+HEADER: :tangle "../src/sisudoc/io_out/xmls_css.d"
+#+HEADER: :tangle "../src/sisudoc/outputs/io_out/xmls_css.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
 /++
   default css settings
 +/
-module sisudoc.io_out.xmls_css;
+module sisudoc.outputs.io_out.xmls_css;
 @safe:
 template spineCss() {
   import std.format;
diff --git a/org/out_zip.org b/org/out_zip.org
index 561c7e6..7cde8a7 100644
--- a/org/out_zip.org
+++ b/org/out_zip.org
@@ -21,11 +21,11 @@
 * _zip_ :module:spine:create_zip_file:
 ** module template
 
-#+HEADER: :tangle "../src/sisudoc/io_out/create_zip_file.d"
+#+HEADER: :tangle "../src/sisudoc/outputs/io_out/create_zip_file.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
-module sisudoc.io_out.create_zip_file;
+module sisudoc.outputs.io_out.create_zip_file;
 @safe:
 template createZipFile() {
   import std.file;
diff --git a/org/output_hub.org b/org/output_hub.org
index 8270e2c..88e28c1 100644
--- a/org/output_hub.org
+++ b/org/output_hub.org
@@ -20,7 +20,7 @@
 * output hub [#A]
 ** _module template_ :module:
 
-#+HEADER: :tangle "../src/sisudoc/io_out/hub.d"
+#+HEADER: :tangle "../src/sisudoc/outputs/io_out/hub.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
@@ -28,7 +28,7 @@
   output hub<BR>
   check & generate output types requested
 +/
-module sisudoc.io_out.hub;
+module sisudoc.outputs.io_out.hub;
 @safe:
 template outputHub() {
   <<output_imports>>
@@ -66,9 +66,9 @@ template outputHub() {
 }
 template outputHubInitialize() {
   import std.file;
-  import sisudoc.io_out,
-    sisudoc.io_out.metadata,
-    sisudoc.io_out.paths_output;
+  import sisudoc.outputs.io_out;
+  import sisudoc.outputs.io_out.metadata;
+  import sisudoc.outputs.io_out.paths_output;
   string _bespoke_homepage = "./spine-bespoke-output/html/homepage.index.html";
   @system void outputHubInitialize(O,I)(
     O opt_action,
@@ -93,7 +93,7 @@ template outputHubInitialize() {
         && opt_action.output_dir_set.length > 0
         && !(isValidPath(opt_action.output_dir_set ~ "/latex/sty")))
     ) { // .sty need to be produced only once (if unchanged per output-dir of which there usually will be only one)
-      import sisudoc.io_out.latex;
+      import sisudoc.outputs.io_out.latex;
       outputLaTeXstyInit!()(
         opt_action.output_dir_set,
         opt_action.generated_by,
@@ -117,11 +117,11 @@ template outputHubOp() {
 
 #+NAME: output_imports
 #+BEGIN_SRC d
-import sisudoc.io_out,
-  sisudoc.io_out.metadata,
-  sisudoc.io_out.xmls,
-  sisudoc.io_out.create_zip_file,
-  sisudoc.io_out.paths_output;
+import sisudoc.outputs.io_out;
+import sisudoc.outputs.io_out.metadata;
+import sisudoc.outputs.io_out.xmls;
+import sisudoc.outputs.io_out.create_zip_file;
+import sisudoc.outputs.io_out.paths_output;
 #+END_SRC
 
 ** outputs
@@ -134,7 +134,7 @@ import sisudoc.io_out,
 if (sched == outTask.source_or_pod) {
   msg.v("spine (doc reform) source processing... ");
   if (doc.matters.opt.action.pod) { msg.v("spine (doc reform) source pod processing... "); }
-  import sisudoc.io_out.source_pod;
+  import sisudoc.outputs.io_out.source_pod;
   spinePod!()(doc.matters);
   if (doc.matters.opt.action.source) { msg.vv("spine (doc reform) source done"); }
   if (doc.matters.opt.action.pod) { msg.vv("spine (doc reform) source pod done"); }
@@ -147,7 +147,7 @@ if (sched == outTask.source_or_pod) {
 #+BEGIN_SRC d
 if (sched == outTask.epub) {
   msg.v("epub3 processing... ");
-  import sisudoc.io_out.epub3;
+  import sisudoc.outputs.io_out.epub3;
   doc.outputEPub3!();
   msg.vv("epub3 done");
 }
@@ -170,7 +170,7 @@ if (sched == outTask.html_stuff) {
 #+BEGIN_SRC d
 if (sched == outTask.html_scroll) {
   msg.v("html scroll processing... ");
-  import sisudoc.io_out.html;
+  import sisudoc.outputs.io_out.html;
   outputHTML!().scroll(doc);
   msg.vv("html scroll done");
 }
@@ -182,7 +182,7 @@ if (sched == outTask.html_scroll) {
 #+BEGIN_SRC d
 if (sched == outTask.html_seg) {
   msg.v("html seg processing... ");
-  import sisudoc.io_out.html;
+  import sisudoc.outputs.io_out.html;
   outputHTML!().seg(doc);
   msg.vv("html seg done");
 }
@@ -193,7 +193,7 @@ if (sched == outTask.html_seg) {
 #+NAME: output_scheduled_task_html_out
 #+BEGIN_SRC d
 if (sched == outTask.html_stuff) {
-  import sisudoc.io_out.html;
+  import sisudoc.outputs.io_out.html;
   outputHTML!().css(doc.matters);
   outputHTML!().images_cp(doc.matters);
   msg.vv("html css & images done");
@@ -215,7 +215,7 @@ if (sched == outTask.html_stuff) {
 #+BEGIN_SRC d
 if (sched == outTask.latex) {
   msg.v("latex processing... (available for downstream processing & pdf output");
-  import sisudoc.io_out.latex;
+  import sisudoc.outputs.io_out.latex;
   import std.file;
   if ((isValidPath(doc.matters.output_path ~ "/latex/sty"))
     && (!(exists(doc.matters.output_path ~ "/latex/sty")))
@@ -238,7 +238,7 @@ if (sched == outTask.latex) {
 #+BEGIN_SRC d
 if (sched == outTask.text) {
   msg.v("text processing... ");
-  import sisudoc.io_out.text;
+  import sisudoc.outputs.io_out.text;
   outputText!()(doc.abstraction, doc.matters);
   msg.vv("text done");
 }
@@ -250,7 +250,7 @@ if (sched == outTask.text) {
 #+BEGIN_SRC d
 if (sched == outTask.odt) {
   msg.v("odf:odt processing... ");
-  import sisudoc.io_out.odt;
+  import sisudoc.outputs.io_out.odt;
   outputODT!()(doc.abstraction, doc.matters);
   msg.vv("odf:odt done");
 }
@@ -262,7 +262,7 @@ if (sched == outTask.odt) {
 #+BEGIN_SRC d
 if (sched == outTask.skel) {
   msg.v("skel processing... ");
-  import sisudoc.io_out.skel;
+  import sisudoc.outputs.io_out.skel;
   outputSkel!()(doc.abstraction, doc.matters);
   msg.vv("skel done");
 }
@@ -274,7 +274,7 @@ if (sched == outTask.skel) {
 #+BEGIN_SRC d
 if (sched == outTask.sqlite) {
   msg.v("sqlite processing... ");
-  import sisudoc.io_out.sqlite;
+  import sisudoc.outputs.io_out.sqlite;
   doc.SQLiteHubDiscreteBuildTablesAndPopulate!();
   msg.vv("sqlite done");
 }
@@ -288,12 +288,12 @@ if (sched == outTask.sqlite) {
 #+BEGIN_SRC d
 if (doc.matters.opt.action.sqlite_update) {
   msg.v("sqlite update processing...");
-  import sisudoc.io_out.sqlite;
+  import sisudoc.outputs.io_out.sqlite;
   doc.SQLiteHubBuildTablesAndPopulate!();
   msg.vv("sqlite update done");
 } else if (doc.matters.opt.action.sqlite_delete) {
   msg.v("sqlite delete processing...");
-  import sisudoc.io_out.sqlite;
+  import sisudoc.outputs.io_out.sqlite;
   doc.SQLiteHubBuildTablesAndPopulate!();
   msg.vv("sqlite delete done");
 }
@@ -308,7 +308,7 @@ if ((opt_action.sqlite_db_drop)) {
   if ((opt_action.vox_gt_2)) {
     writeln("sqlite drop db...");
   }
-  import sisudoc.io_out.sqlite;
+  import sisudoc.outputs.io_out.sqlite;
   SQLiteDbDrop!()(opt_action, config);
   if ((opt_action.vox_gt_3)) {
     writeln("sqlite drop db done");
@@ -325,7 +325,7 @@ if ((opt_action.sqlite_db_create)) {
     auto pth_sqlite_db = spinePathsSQLite!()(opt_action.cgi_sqlite_search_filename, opt_action.output_dir_set);
     writeln("sqlite create table...");
   }
-  import sisudoc.io_out.sqlite;
+  import sisudoc.outputs.io_out.sqlite;
   SQLiteTablesCreate!()(env, opt_action, config);
   if ((opt_action.vox_gt_3)) {
     writeln("sqlite create table done");
diff --git a/org/output_show.org b/org/output_show.org
index 85ee080..eb881f1 100644
--- a/org/output_show.org
+++ b/org/output_show.org
@@ -21,11 +21,11 @@
 ** _module template_ metadoc summary
 - document summary from abstraction
 
-#+HEADER: :tangle "../src/sisudoc/meta/metadoc_show_summary.d"
+#+HEADER: :tangle "../src/sisudoc/ocda/meta/metadoc_show_summary.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
-module sisudoc.meta.metadoc_show_summary;
+module sisudoc.ocda.meta.metadoc_show_summary;
 @safe:
 template spineMetaDocSummary() {
   void spineMetaDocSummary(D)(D doc) {
@@ -143,7 +143,7 @@ writefln(
 ** _module template_ show config
 *** _show config tangle
 
-#+HEADER: :tangle "../src/sisudoc/meta/metadoc_show_config.d"
+#+HEADER: :tangle "../src/sisudoc/ocda/meta/metadoc_show_config.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
@@ -157,7 +157,7 @@ writefln(
 #+NAME: spine_show_site_config
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
-module sisudoc.meta.metadoc_show_config;
+module sisudoc.ocda.meta.metadoc_show_config;
 @safe:
 template spineShowSiteConfig() {
   void spineShowSiteConfig(O,T)(
@@ -337,11 +337,11 @@ writefln(
 ** _module template_ show make
 --show-make (show document make)
 
-#+HEADER: :tangle "../src/sisudoc/meta/metadoc_show_make.d"
+#+HEADER: :tangle "../src/sisudoc/ocda/meta/metadoc_show_make.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
-module sisudoc.meta.metadoc_show_make;
+module sisudoc.ocda.meta.metadoc_show_make;
 @safe:
 template spineShowMake() {
   void spineShowMake(T)(T doc_matters) {
@@ -409,11 +409,11 @@ writefln(
 ** _module template_ show metadata
 --show-metadata (show document metadata)
 
-#+HEADER: :tangle "../src/sisudoc/meta/metadoc_show_metadata.d"
+#+HEADER: :tangle "../src/sisudoc/ocda/meta/metadoc_show_metadata.d"
 #+HEADER: :noweb yes
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
-module sisudoc.meta.metadoc_show_metadata;
+module sisudoc.ocda.meta.metadoc_show_metadata;
 @safe:
 template spineShowMetaData() {
   void spineShowMetaData(T)(T doc_matters) {
@@ -549,8 +549,8 @@ import std.conv : to;
 
 #+NAME: metadoc_show_summary_imports
 #+BEGIN_SRC d
-import sisudoc.meta.defaults;
-import sisudoc.meta.rgx;
+import sisudoc.ocda.meta.defaults;
+import sisudoc.ocda.meta.rgx;
 #+END_SRC
 
 *** initialize :report:
diff --git a/org/spine.org b/org/spine.org
index 481f2c7..6d67e3b 100644
--- a/org/spine.org
+++ b/org/spine.org
@@ -105,7 +105,7 @@ string program_name = "spine";
       spineMetaDocCuratesAuthors!()(hvst.curates, _make_and_meta_struct, _opt_action);
     }
     if (_opt_action.vox_gt_1) {
-      import sisudoc.io_out.paths_output;
+      import sisudoc.outputs.io_out.paths_output;
       auto out_pth = spinePathsHTML!()(_make_and_meta_struct.conf.output_path, "");
       if (_opt_action.curate_authors) {
         writeln("- ", out_pth.curate("authors.html"));
@@ -139,25 +139,25 @@ import std.getopt;
 import std.file;
 import std.path;
 import std.process;
-import sisudoc.conf.compile_time_info;
-import sisudoc.meta;
-import sisudoc.meta.metadoc;
-import sisudoc.io_out.curate.metadoc_curate;
-import sisudoc.io_out.curate.metadoc_curate_authors;
-import sisudoc.io_out.curate.metadoc_curate_topics;
-import sisudoc.meta.metadoc_from_src;
-import sisudoc.meta.conf_make_meta_structs;
-import sisudoc.meta.conf_make_meta_json;
-import sisudoc.meta.defaults;
-import sisudoc.meta.doc_debugs;
-import sisudoc.meta.rgx;
-import sisudoc.meta.rgx_yaml;
-import sisudoc.meta.rgx_files;
-import sisudoc.io_in.paths_source;
-import sisudoc.io_in.read_config_files;
-import sisudoc.io_in.read_source_files;
-import sisudoc.io_in.read_zip_pod;
-import sisudoc.io_out.hub;
+import sisudoc.outputs.conf.compile_time_info;
+import sisudoc.ocda.meta;
+import sisudoc.ocda.meta.metadoc;
+import sisudoc.outputs.io_out.curate.metadoc_curate;
+import sisudoc.outputs.io_out.curate.metadoc_curate_authors;
+import sisudoc.outputs.io_out.curate.metadoc_curate_topics;
+import sisudoc.ocda.meta.metadoc_from_src;
+import sisudoc.ocda.meta.conf_make_meta_structs;
+import sisudoc.ocda.meta.conf_make_meta_json;
+import sisudoc.ocda.meta.defaults;
+import sisudoc.ocda.meta.doc_debugs;
+import sisudoc.ocda.meta.rgx;
+import sisudoc.ocda.meta.rgx_yaml;
+import sisudoc.ocda.meta.rgx_files;
+import sisudoc.ocda.io_in.paths_source;
+import sisudoc.ocda.io_in.read_config_files;
+import sisudoc.ocda.io_in.read_source_files;
+import sisudoc.ocda.io_in.read_zip_pod;
+import sisudoc.outputs.io_out.hub;
 #+END_SRC
 
 ***** spine metadoc :spine:
@@ -167,14 +167,14 @@ import sisudoc.io_out.hub;
 import std.datetime;
 import std.digest.crc;
 import std.digest.sha;
-import sisudoc.meta;
-import sisudoc.meta.metadoc_from_src;
-import sisudoc.meta.conf_make_meta_structs;
-import sisudoc.meta.conf_make_meta_json;
-import sisudoc.meta.defaults;
-import sisudoc.io_in.paths_source;
-import sisudoc.io_in.read_config_files;
-import sisudoc.io_in.read_source_files;
+import sisudoc.ocda.meta;
+import sisudoc.ocda.meta.metadoc_from_src;
+import sisudoc.ocda.meta.conf_make_meta_structs;
+import sisudoc.ocda.meta.conf_make_meta_json;
+import sisudoc.ocda.meta.defaults;
+import sisudoc.ocda.io_in.paths_source;
+import sisudoc.ocda.io_in.read_config_files;
+import sisudoc.ocda.io_in.read_source_files;
 #+END_SRC
 
 ****** notes
@@ -1127,7 +1127,7 @@ if (
       { /+ local site config +/
         _conf_file_details = configFilePaths!()(_manifested, _env, _opt_action.config_path_set);
         auto _config_local_site_struct = readConfigSite!()(_conf_file_details, _opt_action, _cfg);
-        import sisudoc.meta.conf_make_meta_yaml;
+        import sisudoc.ocda.meta.conf_make_meta_yaml;
         _siteConfig = _config_local_site_struct.configParseYAMLreturnSpineStruct!()(_siteConfig, _manifested, _opt_action, _cfg); // - get local site config
         break;
       }
@@ -1135,11 +1135,11 @@ if (
   }
 } else { /+ local site config +/
   auto _config_local_site_struct = readConfigSite!()(_conf_file_details, _opt_action, _cfg);
-  import sisudoc.meta.conf_make_meta_yaml;
+  import sisudoc.ocda.meta.conf_make_meta_yaml;
   _siteConfig = _config_local_site_struct.configParseYAMLreturnSpineStruct!()(_siteConfig, _manifested, _opt_action, _cfg); // - get local site config
 }
 if (_opt_action.show_config) {
-  import sisudoc.meta.metadoc_show_config;
+  import sisudoc.ocda.meta.metadoc_show_config;
   spineShowSiteConfig!()(_opt_action, _siteConfig);
 }
 #+END_SRC
@@ -1492,7 +1492,7 @@ foreach(arg; _resolved_args) {
 #+BEGIN_SRC d
 { /+ document config/make file +/
   auto _config_document_struct = readConfigDoc!()(_manifest, _env);
-  import sisudoc.meta.conf_make_meta_yaml;
+  import sisudoc.ocda.meta.conf_make_meta_yaml;
   _make_and_meta_struct = _config_document_struct.configParseYAMLreturnSpineStruct!()(_make_and_meta_struct, _manifest, _opt_action, _cfg);
 }
 #+END_SRC
@@ -1566,7 +1566,7 @@ if ((doc.matters.opt.action.debug_do)
 #+BEGIN_SRC d
 /+ ↓ debugs +/
 if (doc.matters.opt.action.show_summary) {
-  import sisudoc.meta.metadoc_show_summary;
+  import sisudoc.ocda.meta.metadoc_show_summary;
   spineMetaDocSummary!()(doc);
 }
 #+END_SRC
@@ -1578,7 +1578,7 @@ if (doc.matters.opt.action.show_summary) {
 #+BEGIN_SRC d
 /+ ↓ debugs +/
 if (doc.matters.opt.action.show_metadata) {
-  import sisudoc.meta.metadoc_show_metadata;
+  import sisudoc.ocda.meta.metadoc_show_metadata;
   spineShowMetaData!()(doc.matters);
 }
 #+END_SRC
@@ -1590,7 +1590,7 @@ if (doc.matters.opt.action.show_metadata) {
 #+BEGIN_SRC d
 /+ ↓ debugs +/
 if (doc.matters.opt.action.show_make) {
-  import sisudoc.meta.metadoc_show_make;
+  import sisudoc.ocda.meta.metadoc_show_make;
   spineShowMake!()(doc.matters);
 }
 #+END_SRC
@@ -1602,7 +1602,7 @@ if (doc.matters.opt.action.show_make) {
 #+BEGIN_SRC d
 /+ ↓ debugs +/
 if (doc.matters.opt.action.show_config) {
-  import sisudoc.meta.metadoc_show_config;
+  import sisudoc.ocda.meta.metadoc_show_config;
   spineShowConfig!()(doc.matters);
 }
 #+END_SRC
@@ -1614,7 +1614,7 @@ if (doc.matters.opt.action.show_config) {
 #+BEGIN_SRC d
 /+ ↓ document abstraction text representation +/
 if (doc.matters.opt.action.show_abstraction) {
-  import sisudoc.abstraction.ssp;
+  import sisudoc.ocda.abstraction.ssp;
   spineAbstractionTxt!()(doc);
 }
 #+END_SRC
@@ -1626,7 +1626,7 @@ if (doc.matters.opt.action.show_abstraction) {
 #+BEGIN_SRC d
 /+ ↓ document abstraction sqlite database +/
 if (doc.matters.opt.action.show_abstraction_db) {
-  import sisudoc.io_out.create_abstraction_db;
+  import sisudoc.outputs.io_out.create_abstraction_db;
   spineAbstractionDb!()(doc);
 }
 #+END_SRC
@@ -1719,10 +1719,10 @@ break; // terminate, stop
 *** 0 module template
 - abstraction template
 
-#+HEADER: :tangle "../src/sisudoc/meta/metadoc.d"
+#+HEADER: :tangle "../src/sisudoc/ocda/meta/metadoc.d"
 #+BEGIN_SRC d
 <<doc_header_including_copyright_and_license>>
-module sisudoc.meta.metadoc;
+module sisudoc.ocda.meta.metadoc;
 @safe:
 template spineAbstraction() {
   <<imports_spine_metadoc>>
@@ -1840,7 +1840,7 @@ if ((_opt_action.debug_do)
 ) {
   writeln("step2 commence → (read document header (yaml) return struct) [", _manifest.src.filename, "]");
 }
-import sisudoc.meta.conf_make_meta_yaml;
+import sisudoc.ocda.meta.conf_make_meta_yaml;
 _make_and_meta_struct =
   docHeaderMakeAndMetaTupYamlExtractAndConvertToStruct!()(
     _header_body_insertfilelist_imagelist.header_raw,