I use Python, C++, NativeScript, TypeScript/JavaScript, HTML/CSS, PHP
OS's: Windows 10, FreeBSD 12.2, Ubuntu Server 20.04, OpenWRT
Web Related: Nginx, Angular, Electron, NodeJS
Embedded programming on ESP32/Arduino with C/C++ on PlatformIO
3D Printing: Marlin on DIY Custom Built 3D Printers. OctoPrint