k3s instructions

1. enable i2c
2. set a unique hostname
```
sudo nano /etc/hostname
```
3. add cgroup_memory=1 cgroup_enable=memory to /boot/cmdline.txt
```
sudo nano /boot/cmdline.txt
```
4. edit hosts file
```
sudo nano /etc/hosts
```
  and add the following line
```
127.0.0.1 mad1
```
5. reboot the device
6. copy the following code and run it in the terminal
```
curl -sfL https://mc256.dev/k3stxt | sudo sh -
```