Hi, I'm Davidson. I build backend systems and the infrastructure around them.
Recent projects include a reproducible PostgreSQL CDC failure lab, school operations software serving more than 2,000 students and staff, and football receipts for the group chat.
Explore my projects, learn more about me, or get in touch.
A reproducible lab for a quiet PostgreSQL CDC failure that filled a disk while Debezium reported healthy.
Paired disk-fill experiments and isolated heartbeat trials show why a published-table heartbeat advances the replication slot when a timer alone does not. The failure and fix reproduced in two runs each.
Academic operations software for two campuses and more than 2,000 students and staff.
A production rewrite that preserved populated data, kept rollback possible, and separated permanent student identity from academic-session enrolment.
Casual football stats, clear leaderboards, and proper receipts for the group chat.
Pick who showed up, log the goals and assists, then send one receipt the whole group understands. No player accounts and no league-admin ceremony.
