Some awesome people have made some ports of SponsorBlock to different platforms.
I have not vetted any of these, so please do your own research to make sure there is nothing malicious. If you have something to add, or think something should be removed, please contact me (@ajayyy).
Please send issues/feature requests to the developer of the port.
MPV is a command line video player. I have not tested this myself, but this seems to be fully featured (skipping, submitting, voting and all). It also has the option to cache the database and only use the local database instead of pulling from the API.