Thanks for the update! a PM of your great project is always welcome. About seeding it in myspleen I’d like to help, but unfortunately my internet connection is not fast too.
By the way I detected that when tsmuxer is used to add or remove srt subtitles, the resulting video always skips the last paragrah of the subtitles. The solution is easy, the files just need a couple of blank keystrokes with “enter”, and tsmuxer will automatically include the last paragrah. (For instance if in ROTJ, the last line is “He’s my brother” and the file just ends after the “r”. Well, just press “enter” a couple of times, save the file, and voila tsmuxer will include “He’s my brother” in the video)