A guided path from "my devices can't see each other" and "Zaryn is blocked here" to a self-healing setup: a private WireGuard network for your devices, your own proxy for zev, every app or the whole computer, failover, and leak checks. Pictures first, every step explained.
How a web page reaches you, and what DNS, a proxy, a VPN, a full line (bufferbloat) and a second connection are, explained with pictures, each with the one zev command for it. No networking knowledge needed.
Connect your laptops, servers, CI runners and apps into one private network, so they reach each other directly and securely, wherever they are.
zev doctor checks this computer's internet layer by layer, from the Wi-Fi to HTTPS, names the one thing that's actually wrong, and fixes it. Each fix is checked afterwards, a fix that didn't help is put back, and undo puts back the rest.
When sites are blocked, use your own VLESS, VMess, Trojan, Shadowsocks, Hysteria2 or WireGuard servers for zev, every app or the whole computer; zev learns per network which sites need it, says why each goes the way it does, counts the data and shows a server as a QR code.
sudo zev vpn on sends every program through your own proxy server, with its DNS and IPv6, a kill switch, sites that need no proxy kept direct, and a leak test (zev vpn check) that proves nothing gets around it.
zev dns finds which DNS resolvers really work from your network and how (encrypted, another port, TCP, through your proxy), throws away a censor's answers, checks DNSSEC signatures itself, and falls back to the network's own DNS so names never stop.
zev tune measures your internet line in full (latency, jitter and loss to the router and beyond, speed both ways, bufferbloat, DNS, path MTU, IPv6, Wi-Fi), then fixes what holds it back one change at a time, keeps only what measurably helped, and never leaves you without a connection.