Greums

For years Green IT was a shared professional responsibility. Then generative AI arrived and the ecological discourse went quiet. But the numbers did not.

Deploy a self-hosted GitLab Runner for homelab CI/CD and use it to run Ansible playbooks safely on private LAN services.

A step-by-step migration from named volumes to bind mounts in Docker Compose, including backup, data copy, validation, and rollback.

A practical, low-friction dotfiles workflow with GNU Stow and Git that scales across machines.

Blockchain is a tamper-evident, append-only ledger secured by cryptographic hashes and distributed consensus. Build one in pure Python to understand how it works.

Essential Docker Swarm commands for cluster management, services, stacks, and secure deployments.