Oh cool. I saw your games. Nice collection. Maybe you could try it nevertheless cause only the translation tool need python3.10.x or higher.. the renpy runtime is not relevant. The only thing, I don't really know ist, if this older Renpy outputs the same tl-File formats... Would be an nice test.
If you use my tool (free or paid) I would really like to know what you think about it. I created it as a tool for my current Renpy-Project (WIP since 2 years).
Thanks and have a good time!