"Initial" working version, after cleanup.

README.md

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+hap-z2m Bridge
+===============
+
+A HomeKit <-> Zigbee2MQTT bridge written in Go, so I don't have to install more NodeJS rubbish.
+It is essentially a Homebridge + homebride-z2m replacement.
+It compiles down to a <10 MB static binary instead of another 200++ MB Docker container.
+It uses the [hap library](https://github.com/brutella/hap) for interfacing with HomeKit.
+
+It is quite barebones, so there is no configuration for the bridge, apart from the MQTT server & credentials.
+The bridge configures and exposes devices based on z2m's MQTT messages.
+
+Currently only supports the types of Zigbee devices I have:
+
+- Climate sensors (temp, humidity)
+- Contact sensors
+- Wall switch
+
+If you do use this software, note that it's in development and may contains bugs,
+or may even burn your house down. I offer no warranty, but you are welcome to file bugs.
+
+
+Building
+=========
+
+To compile `hap-z2m`, use:
+
+    go build -v -trimpath -ldflags="-s -w" ./cmd/...
+
+License
+========
+
+hap-z2m is licensed under the GNU General Public License v3.
+
+Copyright (C) 2023 Darell Tan
+
+This program is free software: you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free Software
+Foundation, either version 3 of the License, or (at your option) any later
+version.
+
+This program is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <https://www.gnu.org/licenses/>.
+