Raspberry Pi Media Server

This has only been tested on a NixOS host. Running make setup should get Nix installed on Fedora, but it still needs to be manually configured as per "Dev Environment Setup" below. Refer to the Nix home page on how to install Nix on other distributions.

Must have the following in your host nix config to cross compile:

{
  # Enable binfmt emulation of aarch64-linux.
  boot.binfmt.emulatedSystems = [ "aarch64-linux" ];
}

The following will help build speeds:

{
  nix = {
    settings = {
      substituters = [
        "https://arm.cachix.org/"
      ];
      trusted-public-keys = [
        "arm.cachix.org-1:5BZ2kjoL1q6nWhlnrbAl+G7ThY7+HaBRD9PZzqZkbnM="
      ];
    };
  };
}

Edit host-params.nix

Building will generate two images, an ARM rasberry pi image, and an x86 VM image. Be aware that building can take a long time, even hours, on slow machines, as it's building the ARM image in a qemu VM.

make build-image

Replace /dev/sda with your SD card device

make flash DEVICE=/dev/sda

make run

make ssh

Once the machine is running, you can edit Nix config and build without generating images. This is much faster and good for making changes. When running a VM, the ~/nixcfg path is shared with the host, so you can commit your changes to git.

cd ~/nixcfg
make build

Edit host-params.nix to enter wifi credentials before building. You can also manually connect to other networks after ssh'ing into the mediaserver.

sudo nmcli dev wifi connect <network-ssid> --ask
sudo device set wlan0 autoconnect yes