while looking to program for UT, and while I wait for my Pinephone, I came to the conclusion that app scavenging will be one of my main sources of "how to do X".
For this purpose I wrote a webapp that helps you detect the language of an app listed in the Open Store.
I used the Open Store api, and wrote a couple of lines on how to use its basic functions (as I didn't find it anywhere else), if it helps anyone (as it would me when I wrote the app).
Hope you'll find it useful. If not, please let me know why