I write everything in markdown, and I mean just about everything. Tech notes, recipes, work procedures, shopping lists…everything. If you check my comment history from today, you can see a quick example of the kind of tech notes I keep (firewalld in this case).
I keep all of my plain text files synced across multiple devices using Syncthing. For desktop editors, I use mostly vim and VSCodium (though Kate is nice too), and I use Markor on Android. This workflow has been highly efficient for many years now, and I no longer waste time constantly reviewing the latest note-taking app.
I recently posted about setting up my new Brother HL-L5210DW printer under Fedora Atomic, which was also having issues with duplex printing when using the brlaser driver. Maybe this will help you too:
https://lemmy.ca/post/23695569
If yours is networked, I think you just need to select the IPP option mentioned in my post, and enter the path as
ipp://<printer-ip-address>