- will not work until meson.build files in
  - d2sqlite3
  - imageformats
  (request adding upstream)
  - dyaml and its dependency tinyendian already
    provide their meson.build
  (should probably revert to meson dub until
  resolved)
- based on 1468425 meson build (no issue now with
  imagefomats using 7.0.2)

- the good
  - works
  - project looks pretty clean
- the bad
  - subprojects built externally
  - not suitable for debian packaging

- subprojects with "manual" git download where
  upstream git lacks meson.build
- imageformats git tag (version) pinned, else
  build fails

- yaml only: config, make & headers
  (yaml is converted directly to struct)
- toml removed: preemptively remove confusion of
  having multiple config formats
  (toml was converted to json & json to struct)
- json removed (intermediate representation):
  takes out intermediate conversion to json which
  could be attractive to have if there are
  multiple formats