NixOS - Stateful HA Proxmox Cluster - nuclearbomb

This is a set of proof-of-concept NixOS configurations that uses impermanence with home-manager and plasma-manager to achieve a highly stylized development system with an entirely defined state.

Impermanence

Being impermanent, everything besides choice directories are cleared at boot!

Besides directories that store credentials or (temporary) configuration, everything is wiped except for two specific choices:

• ~/Development

I develop locally, for now. I have yet to find a suitible cloud development solution. Replit comes (came) close, but unfortunately their pricing is not what it used to be. May the Hacker plan rest in peace.

• ~/Games

I would be okay with placing Lutris games in the Nix Store somehow, similar to how osu!laser is packaged, but it seems like there isn't a Nix-y way to do so yet :(

Installation and Setup

Enter sudo:

• sudo su

Ephemerally download Git (and an editor of your choice):

• nix-shell -p vim -p git

Pick the drive you want to install NixOS on (it will be formatted, choose wisely)

• lsblk

Import this configuration and run disko with the drive you selected:

• cd /tmp; git clone https://github.com/hiibolt/nixos.git
• sudo nix –experimental-features “nix-command flakes” run github:nix-community/disko – –mode disko /tmp/nixos/lib/disko/default.nix –arg device ‘“/dev/<your-drive-here>”’

Generate template files to conveniently build a lot of Nix's fs, then remove configuration files and copy our own in (backing up to /persist):

• sudo nixos-generate-config –no-filesystems –root /mnt
• rm -rf /mnt/etc/nixos; sudo mv /tmp/nixos /mnt/etc
• mkdir -p /mnt/persist/nixos; cp -r /mnt/etc/nixos /mnt/persist; rm -f /etc/nixos/configuration.nix; cp -r /mnt/etc/nixos/* /etc/nixos

Before continuing, note the following caveats:

• If you have 16GB or less of RAM, consider switching TMPDIR prior to building or you may run into issues. Alternatively, use the release-minimal branch.
• This installation will likely conflict with any RAID drive formations. Consider disabling it in BIOS or reworking the disko setup.

Install and reboot on sub-32GB RAM:

• sudo mkdir -p /mnt/persist/hypermeow && TMPDIR=/mnt/persist/hypermeow nixos-install –root /mnt –flake /mnt/etc/nixos#nuclearbombwarhead
• sudo rm -rf /mnt/persist/hypermeow/* && reboot

Install and reboot:

• nixos-install –root /mnt –flake /mnt/etc/nixos#nuclearbombwarhead
• reboot

Once you've rebooted, clean up, build, and reboot a second time:

• sudo mv /persist/nixos/* /persist/nixos/.* /etc/nixos && sudo rm -rf /persist/nixos && rb-s && reboot

Firing up RAID1 on any devices needing it:

• sudo wipefs --all /dev/sda
• sudo wipefs --all /dev/sdb
• sudo pvcreate /dev/sda
• sudo pvcreate /dev/sdb
• sudo vgcreate vgraid /dev/sda /dev/sdb
• sudo lvcreate --type raid1 -m 1 -l 100%FREE -n lvraid vgraid

Imperative Setup

There are some things which, for sake of security or legality, must be imperative.

Log into services

Log into:

• GitHub via Librewolf
• GitHub via gh auth login --insecure-storage
• Tailscale
• Vesktop
• osu!lazer

Download Games

Download ZZZ through Lutris

Enable VSCode Server

• systemctl --user enable auto-fix-vscode-server.service

Adding Additional Machines

Graphical Machines

• Clone one of the existing machines with a GUI
• Rename usernames
• Add users
• Add per-machine desktop file to .../<user>/desktops/<hostname>.nix
• Add machine to flake.nix

TTY-Only Machines

• Clone one of the existing machines without a GUI
• Rename usernames
• Add users
• Add machine to flake.nix