In T7010#130575, @kyrios123 wrote:

Searching both makemkv and ffmpeg on this site didn't bring that up,

Okay, so it's probably my computer! ?

The way forward ? Well the issue is upstream, so you may want want to raise the issue there.

Searching both makemkv and ffmpeg on this site didn't bring that up, nor did searching the keywords makemkv and solus (and limiting it to this year and/or this month), so you can't expect the user to be omni potent, eh?

Sorry to comment on an old issue, this is still an issue if you dont input anything into the authentication box for a prolonged amount of time (about 30 seconds).

Typically, we prefer stable tagged releases. However, this may be waived if:
The software has significant traction (i.e. prerelease)

https://solus-project.com/articles/packaging/package-inclusion-policy/en/

I'm 99.99% sure its correct. OPs link to xsels homepage is the same as the first result on google.
In the download section section its under "Development versions are available via Git"

Any chance this can get re-opened? xsel is still not included in the repos, and it has commits as recent as 24 of August this year.
https://github.com/kfish/xsel/commits/master
My original post was closed as duplicate and merged into this one, and this one is now closed only after xdotool being added to the repos, ignoring xsel.