you've described exactly the procedure we use. Today I was chatting on IRC with Cait and we were unable to find out how often the .po files are generated. For Koha 21.11, which I am now actively translating, the generation occurred on Friday 6/5 and today 9/5. Does this mean that the script does this every day? Or is the frequency different?
We have a script that downloads .po files from Pootle (for example
https://translate.koha-community.org/export/21.11/cs/) and replaces the files on our Koha server disk. For this to work well though, we need to know how often the files in /export/version/cs change. Ideally this would be once a day. That would be perfect.