https://lowendbox.com/ I have used their deals every time I needed a server. One time I had a cheap rack nerd server on hdds then they migrated years later to free ssd upgrade haha

You can get some pretty cheap ones like sub $10/year. My current ones 2 cpu 3.5gb ram 64gb ssd for $33 a year.

There are OpenSCAD libraries and I remember one has support for fillet and chamfers.

Prusa just announced a bundle for this feature using 4 tool changers or 7. https://blog.prusa3d.com/prusament-pla-colormix-print-45-color-shades-using-just-five-filament-spools-and-more_137835/

Lucky person that doesn’t live in humidity. I been zip lock bagging my filament after every use. If I leave PLA out for more than a day it’s the death of printing.