NixOS on a Budget VPS: Getting Under the 2GB RAM Floor
How to install NixOS on cheap VPS instances with 768MB–1GB RAM using nixos-infect and a custom kexec image for nixos-anywhere.
infrastructure
Using Private GitHub Repositories with Nix Flakes
Private repos return a 404, not a 401, and you're debugging the wrong thing. Here's how to configure Nix access-tokens, manage them with sops-nix on NixOS and macOS, create properly-scoped GitHub tokens, and handle the edge cases — remote builders, the daemon, and fresh hosts.
PostgreSQL 14→18 on NixOS — A Flake-Native Migration
Upgrading PostgreSQL across four major versions on a NixOS server using flake-native scripts — reproducible, atomic, and with human checkpoints where they matter.
Deploying Elixir/Phoenix on NixOS — What Actually Works
Hard-won patterns for packaging Elixir releases with Nix, running multiple instances on the same host, and avoiding the pitfalls that NixOS makes easy to fall into.
Solving the NixOS SOPS Bootstrap Problem
When your NixOS host needs decrypted secrets to build its own configuration but can't decrypt them until after it's built — and how nixos-rebuild's --target-host and --build-host flags solve the chicken-and-egg problem elegantly.
Deploying NixOS on OVH Kimsufi with nixos-anywhere
How to take over an OVH Kimsufi dedicated server with nixos-anywhere, disko, and mdadm RAID — plus wrestling with Java Web Start KVM consoles in 2026.
A Lightweight Prometheus Exporter for Bhyve VMs
Why I wrote a simple Prometheus exporter for FreeBSD bhyve VMs managed by vm-bhyve, and how to use it.
Bootstrapping NixOS with a Template Generator
How a Rust-based template generator turns the boilerplate of adding a new NixOS host to a dotfiles flake into a guided, repeatable process.