Travel bucket list and savings tracker. Same trip data in Claude, Cursor, and ChatGPT, per user via OAuth.
Built partly to learn MCP OAuth and how to ship a secure, production-ready MCP server. Connect once, and each assistant only sees your trips and fund.
A local-only challenge grid — tap a day, export PDF, ship on GitHub Pages.
Built for “Day 12 of 30” goals instead of calendar-month trackers. Everything stays in the browser.
Variable-length unsigned 64-bit ints — small numbers stay small on the wire.
Drop-in Java serializers for Kafka so you can swap encoding without rewriting app logic.
Key + null value = tombstone. Use null.marker so the CLI can send it.
bin/kafka-console-producer.sh --bootstrap-server localhost:9092 \
--topic my-compacted-topic \
--property parse.key=true \
--property key.separator=: \
--property null.marker=NULL
# Then type: user123:NULL
Compacted topics need a null value to delete a key. The console producer’s null.marker makes that one line instead of a custom producer.
find + -mtime + -delete is safer than a recursive rm when you scope the path.
find /var/log/myapp -type f -name "*.log" -mtime +7 -print
# review the list, then:
find /var/log/myapp -type f -name "*.log" -mtime +7 -delete
Always -print first. -delete only after you’ve confirmed the match set.