The only issue I have with Ardour is that all plugins need to be installed separately (assuming OP hasn’t installed them already).

I recently purchased a copy of Ardour, and I have noticed that, but I have found most basic plugins can be found for free.

nothing wrong with more options :)

Options are key.

Ardour should be able to do that.

I don’t believe LMMS can do audio tracks, so Ardour would be the one to go with.

I am planning on writing a graphical interface for gphoto2 (a Linux camera remote library) which will allow for tethered shooting and some other neat things (like using a computer as an intervalometer). I might also write a web interface for it, so it will allow for using a table or phone to remote control a camera and allow the user to check on timelapses, but it will take a while to get it all to work.

I have been experimenting with using Inkscape and OpenSCAD for 3d modeling, and it seems to work for what I do, but I know quite a few people prefer a more graphical interface than OpenSCAD.

You might be able to use webscreensaver.