PoC AppImage?

[probonopd]

Hello @mensinda, this is very interesting work.
Is there a proof-of-concept AppImage for download?
I'd be especially interested in how it works on FUSE3-only systems, where our current AppImage runtime seemingly refuses to run.

Are you aware of https://github.com/tim-janik/appimage-runtime? It seems to go into a similar direction.

[mensinda]

There are some here: https://github.com/mensinda/meson/releases/tag/0.0.13-runtime

However, those "AppImages" use a custom main executable to better work with Meson. As for FUSE3, it should if the squashfuse subproject it is compiled with FUSE3. Haven't tested it though. FUSE2 and FUSE3 will be tricky since this would require including two squashfuse versions... I guess it could be implemented by forking squashfuse and "converting" it to C++ by adding namespaces for FUSE2 and FUSE3.

Are you aware of https://github.com/tim-janik/appimage-runtime? It seems to go into a similar direction.

No, I wasn't aware of that project. The primary focus of my project is to provide a library that can be used for custom statically linked runtime creation.

[probonopd]

If FUSE is compiled into the runtime statically, shouldn't it work regardless of whether the host system ships the version 2 or 3 library?

[mensinda]

It is compiled statically, but I think it expects a different hardcoded binary and I am not sure if there are differences in the API maybe.