Portability: sysfs-only sensors with thermal-zone fallback, /sys/block disk discovery, fs blacklist, pwrstat/NUT/apcupsd UPS, login shell from passwd, templated unit + install for any user, cross-compile targets

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

README.md

@@ -3,8 +3,26 @@
 Web-based Linux management console for bare-metal Debian, in the style of the Proxmox
 web UI. Named after Ham the cat (see also HamTV).
 
-Status: **planning**. See [`PLAN.md`](PLAN.md) for the MVP scope and roadmap. No code yet.
+Status: **v0.1** — persistent web terminals and a live Dashboard tab. Scope and roadmap in
+[`PLAN.md`](PLAN.md).
 
-- Runs as a systemd service on the host it manages, as user `core`.
-- Public at `https://hamlab.bigham.dev` (behind Nginx Proxy Manager on `core`).
+## Runs on any Linux box
+
+One static Go binary with the UI embedded; no cgo, no Node at runtime, no agents. The
+Dashboard reads `/proc` and `/sys` directly (CPU, memory, hwmon or thermal-zone temps,
+fans, NICs, block devices, mounts) so it works the same on x86 and ARM, bare metal or VM,
+and just leaves a section empty when the hardware has nothing to report. UPS status is
+optional and picked up from whichever of `pwrstat`, NUT (`upsc`) or `apcupsd` is
+installed.
+
+```sh
+make build                      # web + Go, or: make build-arm64 for a cross-compile
+./deploy/install.sh             # installs the binary + a systemd unit for the invoking user
+hamlab passwd                   # set the login password (config in ~/apps/hamlab/)
+sudo systemctl start hamlab     # listens on 127.0.0.1:8100 by default; set "listen" in config.json
+```
+
+Terminals run as the user the service runs as, with that user's login shell.
+
+- On `core` it is public at `https://hamlab.bigham.dev` behind Nginx Proxy Manager.
 - Installable as a PWA.