I just had to re-enter the nSEC time and time again when I used to use Damus.

I now have Android and use Ameythst which allows me switch between multiple accounts.

Something new I'm doing is using Obsidian Writer on my PC. I have a community Plug-In called Nostr Writer which allows me to post from multiple accounts.

I still post from Ameythst with my personal nPub and nostr:nprofile1qqsxcu4pe374qcpcsmlfc6njwnh7vhurwhd9gv2m699xqvwwjvs7sggpz4mhxue69uhhyetvv9ujuerpd46hxtnfduhs724xdv, but I use Obsidian for posting the majority of my art work both from my personal nPub and anything for nostr:nprofile1qqsvh2svs20dxgkp25wtvcvmfsytngn2e9llkn54jgz7a3uwaycny3gpz4mhxue69uhhyetvv9ujuerpd46hxtnfduhszrnhwden5te0dehhxtnvdakz7qgewaehxw309aex2mrp0yh8xmn0wf6zuum0vd5kzmp07wuy3d.