The stuff I remember to write down
Working on the Nextcloud desktop client , I stumbled into a nasty little bug. If you tried to add or remove a user account, the app would often freeze for a while.
This was super annoying during testing, so I decided to look into it. Surprisingly this wasn’t a new bug I’d unwittingly introduced; tracing the source of the freeze led all the way down into QtKeychain, which is what the desktop client uses to store user credentials.