Zeon's NixOS Config

This is my personal NixOS configuration and not meant for general consumption.

Features

• Multiple NixOS configurations, including desktop and VM
• Automatic ZFS snapshots with rotation
• Tweaked ZFS for better I/O
• Niri with noctalia v5 shell & greeter

How to Install

Run the following commands from a terminal on a NixOS live iso / from a tty on the minimal iso.

The following install script partitions the disk, sets up the necessary datasets and installs NixOS.

From a standard ISO,

sh <(curl -L https://raw.githubusercontent.com/TwistedZeon/dotfiles/main/install.sh)

Reboot

Creating Persist Snapshot to Restore

sudo zfs snapshot zroot/persist@persist-snapshot
sudo zfs send zroot/persist@persist-snapshot > SNAPSHOT_FILE_PATH

Restoring from Persist Snapshot

# the rename is needed for encrypted datasets, as -F doesn't work
sudo zfs receive -o mountpoint=legacy zroot/persist-new < SNAPSHOT_FILE_PATH
sudo zfs rename zroot/persist zroot/persist-old
sudo zfs rename zroot/persist-new zroot/persist

System Rescue

Run the following commands from a terminal on a NixOS live iso / from a tty on the minimal iso.

The following script optionally reformats the boot partition and / or /nix dataset, then reinstalls NixOS.

From a standard ISO,

sh <(curl -L https://raw.githubusercontent.com/TwistedZeon/dotfiles/main/recover.sh)

Adding a New Host

NOTE: This can be done all within the live iso with a git clone but it's easier to do it on a system with a development environment already setup.

Create a new directory in hosts/ with the new hostname, in the same format as the other hosts.

Boot into the live iso on the new system and run nixos-generate-config --no-filesystems --show-hardware-config.

Copy the output onto a pastebin or similar, replacing hosts/NEW_HOSTNAME/hardware.nix with the pastebin contents, preferably on the other system.

Push the updated config to git, then proceed with installation using the instructions from How to Install above.