March 2025 monthly summary for tweag/FawltyDeps focusing on documentation improvements for user-defined mappings, with cross-references and real-world examples to boost usability and onboarding.

January 2025 — Tweag/runner-images: focused on stabilizing the Ubuntu 22.04 AWS image build, cost/security improvements via EBS cleanup, and keeping the software stack documentation current. The work enhances build reliability, reduces ongoing costs, and improves developer onboarding with refreshed documentation.

December 2024: Delivered Packer-based automation for Ubuntu 22.04 AMIs on AWS using the amazon-ebs builder, with refined variables, launch mappings, and provisions for software installation, reporting, and testing. Established an initial end-to-end AMI build flow and prepared CI validation, enabling repeatable, auditable AMI creation for dev/test and deployment pipelines. Fixed stability concerns by removing Copilot-derived changes and selecting larger VM sizes to improve build reliability. Result: faster, reliable AMI provisioning and a clear upgrade path for infrastructure automation. Technologies/skills demonstrated include Packer configuration, AWS AMI building, CI hygiene (fmt/validate), and scripting for automated provisioning.