chore: add linux onboarding documentation

Signed-off-by: Cezar Rata <[email protected]>

README.md

@@ -7,54 +7,46 @@ The Finch Daemon project is a container runtime engine that enables users to sea
 Please review [CONTRIBUTING.md](./CONTRIBUTING.md) for onboarding as well for an overview of the development cycle for this project. Additionally, check the [Makefile](./Makefile) for additional information on setup & configuration.
 
 ## Quickstart
+Make sure [NerdCTL](https://github.com/containerd/nerdctl) and [Containerd](https://github.com/containerd/containerd) are installed and set up
 
-### macOS
-Note that with macOS, it is not possible to run unit tests with `make run-unit-tests` or do code-gen with `make code-gen` directly as this is a Linux project. It is possible, however, to build the project on macOS with `make` and run the linux-related commands in the finch vm.
+### Linux
+Getting started with finch-daemon on Linux only requires a few steps:
 
-1. Get finch, `brew install finch`
-2. Add the unix socket forwarding to `/Applications/Finch/lima/data/finch/lima.yaml`:
-   ```yaml
-   portForwards:
-   - guestSocket: "/run/finch.sock"
-     hostSocket: "{{.Dir}}/sock/finch.sock"
-   ```
-3. Init the vm to apply the changes (or restart if Finch was already running):
-   ```bash
-   # init
-   finch vm init
-
-   # restart
-   finch vm stop
-   finch vm start
-   ```
-4. Pull finch-daemon from the GitHub repo to somewhere under your home directory: `git clone https://github.com/runfinch/finch-daemon.git`
-5. Check if you have go installed with `go version`, if not, install go with `brew install go`
-6. Build finch-daemon with `make`
-7. Spin up the finch-daemon server in finch's vm:
-   ```bash
-   LIMA_HOME=/Applications/Finch/lima/data /Applications/Finch/lima/bin/limactl shell finch
-   cd <finch-daemon-dir>
+1. Clone the finch-daemon Github repository - `git clone https://github.com/runfinch/finch-daemon.git`
+2. `cd finch-daemon`
+3. Install Go and make sure that `go version` is >= 1.22
+4. Build and spin up the finch-daemon server with 
+   ```bash 
+   make
    sudo bin/finch-daemon --debug --socket-owner $UID
    ```
-8. Test the project and use finch to confirm changes
-   - Using curl:
-     ```bash
-     curl -v -X GET --unix-socket /Applications/Finch/lima/data/finch/sock/finch.sock 'http://localhost/version'
-     ```
-   - Using Docker CLI:
-     ```bash
-     DOCKER_HOST=unix:///Applications/Finch/lima/data/finch/sock/finch.sock docker images
-     ```
-   - Using the Docker python SDK (after installing python3):
-     ```bash
-     # Install docker python SDK
-     python3 -m pip install docker
-     # Start python 
-     DOCKER_HOST=unix:///Applications/Finch/lima/data/finch/sock/finch.sock python3
-     ``` 
-     ```python
-     >>> import docker
-     >>> client = docker.from_env()
-     >>> con = client.containers.get("test-container")
-     >>> con.attach(stream=True, logs=True, demux=True)
-     ```
+5. Test any changes with `make run-unit-tests` and `sudo make run-e2e-tests`
+
+## Creating a systemd service
+Sometimes, you may wish to have a script be controlled by systemd, or to have the script restart by itself when it gets killed. You can configure such a service using systemd on Linux by following these steps:
+
+1. `cd /etc/systemd/system`
+2. Create a `finch.service` file, with the following contents:
+   ```ini
+   [Unit]
+   Description=finch daemon %I
+   Documentation=https://runfinch.com
+   After=network.target local-fs.target containerd.service
+   Wants=network.target containerd.service
+
+   [Service]
+   ExecStart=/usr/local/bin/finch-daemon --debug --socket-owner %i
+
+   Type=notify
+   Delegate=yes
+   Restart=always
+   RestartSec=5
+
+   [Install]
+   WantedBy=multi-user.target
+   ```
+3. Refresh the service files to include the new service - `sudo systemctl daemon-reload`
+4. Start the service - `sudo systemctl start finch.service`
+5. To check the status of the service - `sudo systemctl status finch.service`
+6. To enable the service on every reboot - `sudo systemctl enable finch.service`
+7. To disable the service on every reboot - `sudo systemctl disable finch.service`