Zero to CDN Optimization: A Weekend Project Retrospective

We adopted a writing culture where every significant technical decision gets documented in a lightweight RFC. These aren’t formal or bureaucratic — just a shared Google Doc with problem statement, proposed approach, alternatives considered, and decision rationale. Six months in, the archive has become our most valuable knowledge base.

We started this project with a clear hypothesis: the existing approach was costing us more in maintenance time than the migration would cost upfront. Three months later, the data confirmed we were right — but the journey was far bumpier than expected.

The most valuable lesson wasn’t technical at all. It was about communication. Every delay, every surprise bug, every scope change traced back to assumptions that hadn’t been validated with stakeholders early enough.

Monitoring Setup

We stopped doing quarterly planning and switched to six-week cycles with two-week cooldowns. The cooldowns are for tech debt, experiments, and developer-chosen projects. Team satisfaction scores jumped 30% and, counterintuitively, feature delivery actually accelerated.

The hardest part of any migration is the data. Not the schema changes — those are mechanical. The real challenge is ensuring data integrity during the transition period when both old and new systems are running simultaneously and writes need to be consistent across both.

If you’re facing similar challenges, feel free to reach out. We’ve open-sourced several of the tools mentioned in this post and are happy to share more details about the ones we can’t release publicly.