Todo

Condensed from TODO.md at build time: 7 open item(s), 0 completed.

• make the `install` target depend on `build`: `scripts/program-install.sh` copies whatever is in `dataflow.out/build/`, so `make install` after a source change installs the previous binary and reports the previous version unless `make build` ran first.
• decide how long to keep the replaced file: `update` keeps it as `<name>.previous`, which for FreeCAD is another 820 MB. A retention rule (delete on the next successful update, or on request) would be worth having.
• use a zsync client for updates when one is installed, so an update transfers a delta instead of the whole file. `zsync`, `zsync2` and `appimageupdatetool` are all absent here, so `update` downloads in full today; the check already prints the size.
• decide what to do about the version a file name states: `version_of_appimage` reads OrcaSlicer's `…V2.4.2_62a8fff…` as `2.4`, which is what an update check would compare against a release tag.
• decide whether `make install` should register the handler the way the release installer now does. `scripts/install.sh` runs `handler install`; `scripts/program-install.sh` does not, so a developer's own desktop keeps whatever handler it had while a released install takes over. Either the two paths agree, or the difference is deliberate and written down.
• improve the human-oriented documents in `documents/`.
• read the tool-universe sources in `documents/02-tool-universe.md`.