Try blender. I use it for CAD.

Publii is a good alternative.

Why “other than depositing a check remotely”? Depositing a check remotely is the reason I have to use my bank’s mobile app.

I use GnuCash for two companies and personal accounting. Love it.

I use fish shell only now. Used to only write bash, but I’ve started writing some fish scripts. I wouldn’t try to plan too much WRT shell scripting up front. Just fix your pain points as you go.

I use Calibre and its web server locally. Works great.

I use emacs, Denote, and markdown-mode to keep a loose Zettlekasten archive of notes.

I use and recommend Free File Fillable Forms. https://www.freefilefillableforms.com It’s basically filling out an electronic version of the paper forms, but some fields are auto-calculated.

Karateka on Apple IIe