What you want is to go along with the business line of logitechs products and scrap the rest. There is an offline version of Logi Options+ “for air gapped machines” available. https://prosupport.logi.com/hc/en-hk/articles/10991109278871-Logitech-Options-Offline-Installer You may use it in a virtual machine aswell.

Well done!

Aren’t you going to catch a cold?

Use heavy duty quality slideouts with proper bearings in the rails. Spend money on quality. The rest can be cheap. I upcycled old furniture.

Install termux from f-droid. Then install nginx inside termux. Works great.