nixpkgs/pkgs/by-name/on
..
onagre
onboard
ondir
one-click-backup
onedrive
onedrivegui
onedriver
oneko
oneshot
onesixtyone
onestepback
oniguruma
onioncircuits
onlykey-agent
onlykey-cli
onlyoffice-desktopeditors
onlyoffice-documentserver
onmetal-image
onscripter-en
onthespot