OSS/Libre alternatives I use every day

After working in IT for over 10 years and 5 as an embedded dev I've managed to find out some OSS/Libre alternatives to common tools devs and sysadmins use every day. So I compiled a WIP list below:

Product Alternative Info
VMWare Proxmox*
MailChimp listmonk* Runs over everything, even NetBSD
VSCode VSCodium No more AI and telemetry
Router firmware OPNsense / OpenWRT OpenWRT is best if you have WIFI
Bambu Slicer Orca Slicer Because bambulab sucks
SynologyNAS TrueNAS SCALE*
Any streaming service/Plex Jellyfin*
GitHub Forgejo* Used by Codeberg
LastPass BitWarden*
DaVinci Resolve Kdenlive
Fusion360 FreeCAD/OpenSCAD
Hardware debugging BlackMagic Debugger Works great with blue pill/black pill
Altium Designer KiCad

* available as self hosted services