Digital Audio Workstation (DAW) for people who want to record, edit, mix and master audio and MIDI projects. When you need complete control over your tools, when the limitations of other designs get in the way, when you plan to spend hours or days working on a session, Ardour is there to make things work the way you want them to.
I don’t use Ardour because the prebuilt binary costs, but I think it’s the best form of open source project.
I think there is also flatpak version which is also non-paid
Arch linux official repos seem to have prebuilt binaries ready to install: https://archlinux.org/packages/extra/x86_64/ardour/
Debian/ubuntu got binaries in their repository.