Looking for volunteers: app testing

Hello circle! If you've used the automagic AO3 and found it useful, I'm soliciting volunteers to help test a pretty major future development on it that I need to get done to stop paying the cloud providers more money than I have to.

If you're interested in chipping in just a little bit of time to help test a beta version of the app before I make major changes and then after said changes, please let me know!

tl;dr tech stuff: old Firebase db used since dawn of time getting old and creaky. Exchange participants v enthusiastic about exchanges throw much many data at app; data duplicated in two places - old Firebase and new $$ postgres sql. Code monkey no desire pay for both postgres and no-longer-free Firebase because now so many exchanges exist and amount of data in Firebase enormous big. Alas, Firebase powers all major pages of app besides Everything pages. Code monkey sad and regret not write tests but also screw writing tests for a fun project. Regression test always done by clicky click humans anyway...