Honestly, it’s mostly just trying shit out, breaking your install and fixing it, and having fun. In the grand scheme of things doing all that stuff is not that difficult, mostly tedious; my day job involves more complex and often interesting problems. It’s just gluing together things which other people wrote, looking at what breaks, and either fixing it properly or just hacking it together with perl.

Finally, I can confide to you that I’ve spent half a day getting wireguard working on that very phone a couple months ago, only to find out it was because I didn’t poke the right holes in the firewall :)