TruePe4rl

Usually Neovim and :!tectonic main.tex, nothing fancy. For preview ideally Zathura or Preview on Mac.

Also VSCode is quite usable, since there are some pdf preview plugins.

whenever I forget how to do \wedge while typing math

Iteresting, ... very interesting

I have tried both, Libresprite is nice, but I am more used to working with Krita, alhough my laptop really dislikes it and heats up. Was not an issue when it was booting Linux so an OS issue I guess.

Libresprite is obviously more plug and play experience.

Krita has a decent pixel art support, but requires a bit of setup. Some tools have Antialiasing option in Tool options docker, so you may play around with that, if your selections and fills are getting messed up. It has some pixel brushes, but if you decide to stick with it for a while I would recommend making some brushes and patterns for pixelart on your own as well, just for the sake of convenience. Also make sure to customize your dockers (UI).

Buying some with needle that's roughly 1-2mm on diameter is relatively easy and it does not even need to be meant for glue (depending on what glue you use of course)

I would copy the text to a .txt file (maybe edit it to make the width more mobile friendly) and on phone open it with some basic text editor.

I use MiXplorer (the free version from XDA) as a default file manager and find it's Text editor quite good. Other good options may be Markor (since it has edit and view modes, but make sure to turn off text wrapping) or other editors. Code editor like Acode would be an overkill for this.

Last but not least, you can also screenshot the tab or copy it to some word processor, set font to monospace and export as .pdf (maybe with custom document size if more convenient)

happy Wacom Intuos Art user here, can recommend