Inspired by this post by Randall Munroe.

I want something that does basically the same thing - mirror the keyboard’s letter and common punctuation keys - but while pressing either of the Alt keys instead of using CapsLock. Also, I use Dvorak, not QWERTY.

I’d rather use my thumb as the modifier so that reaching the shift key in addition to the modifier key doesn’t mess with my finger movement too much, and this way I’ll be able to type one-handed with either my left or right hand. Also, I never use any of the Alt shortcuts that use the letter/punctuation keys, so getting rid of those shortcuts won’t be a problem

Any ideas on how this could be accomplished? I’m on Linux Mint 21.3 Cinnamon (but also have a Mint MATE laptop that I’d like to replicate this on, if possible).

Edit: All I’ve tried so far is checking the keyboard layout options to try to turn off Alt shortcuts activating the top bar of applications, to free them up for the shortcuts I’d need, but no luck so far.