fix(bootstrap): safe uninstall, add license, CI, and docs

- Fix uninstall to only remove own files (farmer/sprout can coexist)
- Add systemctl daemon-reload after removing unit files
- Suppress userdel error if user doesn't exist
- Add 0BSD LICENSE (matches gogrlx/grlx)
- Add GitHub Actions CI workflow (shellcheck)
- Expand README: non-interactive install, uninstall docs, arch list, badges

README.md

@@ -1,10 +1,17 @@
 # grlx Quickstart
+
 ## <p align="center"><img src="docs/grlx-speed.jpg" width="300"></p>
+
+[![CI](https://github.com/gogrlx/bootstrap.grlx.dev/actions/workflows/ci.yml/badge.svg)](https://github.com/gogrlx/bootstrap.grlx.dev/actions/workflows/ci.yml)
+[![License: 0BSD](https://img.shields.io/badge/License-0BSD-green.svg)](https://opensource.org/licenses/0BSD)
+
 Want to get up and running as quickly as possible to see what all the fuss is about?
 Use our bootstrap scripts!
 Note that only Linux `sprout`s and `farmer`s are supported, but you can use the
 CLI from macOS as well.
 
+## Install
+
 1. Download and initialize the command line utility from our releases to your dev machine.
 ```bash
 # replace 'linux' with darwin if you're on macOS
@@ -17,6 +24,7 @@ Once configured, the CLI prints out your administrator public key, which you'll
 *It's recommended you now add `grlx` somewhere in your `$PATH`.*
 
 ![grlx install](docs/grlx-install.gif)
+
 2. On your control server, you'll need to install the `farmer`. This script may also be run as `root` instead of using sudo.
 ```bash
 curl -L https://bootstrap.grlx.dev/latest/farmer | sudo bash
@@ -27,6 +35,7 @@ You'll be prompted for an admin public key, which you should have gotten from th
 Make sure the certificate host name matches the external-facing interface (a domain or IP address) as it will be used for TLS validation!
 
 ![farmer install](docs/farmer-install.gif)
+
 3. On all of your fleet nodes, you'll need to install the `sprout`.
 ```bash
 # Set FARMERINTERFACE to your farmer's domain name. FARMERBUSPORT and FARMERAPIPORT
@@ -47,3 +56,53 @@ grlx -T \* cmd run --out json -- uname -a
 ```
 
 ![running commands](docs/grlx-cmd.gif)
+
+## Non-Interactive Install
+
+Both scripts support environment variables for unattended installation:
+
+**Farmer:**
+```bash
+curl -L https://bootstrap.grlx.dev/latest/farmer | \
+  FARMERINTERFACE=0.0.0.0 \
+  FARMERAPIPORT=5405 \
+  FARMERBUSPORT=5406 \
+  FARMERORGANIZATION="My Org" \
+  ADMIN_PUBKEYS="ABC25HBCYNHYMIFTN372NCKASUQPJCTBA66GLKXFYM3QGRP42IC5BYYF" \
+  CERT_HOSTS="farmer.example.com" \
+  sudo -E bash
+```
+
+**Sprout:**
+```bash
+curl -L https://bootstrap.grlx.dev/latest/sprout | \
+  FARMERINTERFACE=farmer.example.com \
+  FARMERAPIPORT=5405 \
+  FARMERBUSPORT=5406 \
+  sudo -E bash
+```
+
+## Uninstall
+
+To uninstall either component, set the `UNINSTALL` environment variable:
+
+```bash
+# Uninstall farmer
+curl -L https://bootstrap.grlx.dev/latest/farmer | UNINSTALL=1 sudo -E bash
+
+# Uninstall sprout
+curl -L https://bootstrap.grlx.dev/latest/sprout | UNINSTALL=1 sudo -E bash
+```
+
+Each uninstall only removes its own files — running both components on the same host is safe.
+
+## Supported Architectures
+
+- x86_64 (amd64)
+- i686/i386 (386)
+- aarch64/arm64 (arm64)
+- armv7l (arm)
+
+## License
+
+[0BSD](LICENSE)