[Suggestion] Dependency Control on AppImage

[bebetoalves]

Hello, how are you? Thank you for maintaining this version of Aegisub 😄

I would like to suggest the possibility of the AppImage version having Dependency Control or adding a section in the README that explains how to perform the installation.

[arch1t3cht]

Funnily enough this was discussed here just earlier today. The problem with shipping DependencyControl with Aegisub on non-Windows operating systems is that DependencyControl wants to be installed in the user config, and not the system-wide config. This is because DependencyControl wants to auto-update itself, which it can't do when it's installed system-wide. That's why I haven't done this so far.

But I do see the problem with DependencyControl being very annoying to install on systems where there's no prebuilt package available. Maybe I'll ask around to see what can be done there. Simply supporting ninja install in ffi-experiments would already be a big improvement. Or the ffi-experiments modules could be shipped with Aegisub, while DependencyControl itself isn't. We'll see.