Over the years I've assembled some documentation and notes that are pretty sufficiently debugged. Here they are.
- Setting up PostGIS on OS/X
- How Git Works
- SQL
- Symmetric Aggregates
- Test Doubles
- Great articles and posts related to software engineering, security, DevOps, etc.
- Death by a Thousand Microservices
- Learnings from code audits
- Please stop using CDNs for external JavaScript libraries (whole discussion is interesting)