My 2025 dotfiles: Home Manager + nix-darwin/NixOS + Terraform + Kubernetes on VMs

Hello! I wrote a Japanese article summarizing my 2025 work on Nix-based dotfiles and a “config” monorepo. It covers a wide range of topics, including:

  • Home configuration with Home Manager
  • System configuration with nix-darwin / NixOS
  • Secrets management with sops-nix
  • Provisioning with Terraform (Cloudflare / GitHub / sops provider)
  • Building a Kubernetes cluster with kubeadm on Ubuntu VMs managed from a NixOS host (libvirt + cloud-init)

Article (Japanese): 2025年のdotfiles

I’d love to hear feedback especially on the overall structure, trade-offs, and what you’d improve for long-term maintenance.

I may add an English translation later when I have time. Thanks!

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