Discoveries on Joel Hanson https://joel-hanson.github.io/discoveries/ Recent content in Discoveries on Joel Hanson Hugo -- gohugo.io en joelhanson025@gmail.com (Joel Hanson) joelhanson025@gmail.com (Joel Hanson) © Joel Hanson Sat, 01 Aug 2026 00:00:00 +0000 Wayfare: trip context over MCP and OAuth https://joel-hanson.github.io/discoveries/wayfare-mcp-travel-context/ Sat, 01 Aug 2026 00:00:00 +0000 joelhanson025@gmail.com (Joel Hanson) https://joel-hanson.github.io/discoveries/wayfare-mcp-travel-context/ Travel bucket list and savings tracker. Same trip data in Claude, Cursor, and ChatGPT, per user via OAuth. Challenge-grid habit tracker, no account https://joel-hanson.github.io/discoveries/habit-tracker-challenge-grid/ Sun, 07 Jun 2026 00:00:00 +0000 joelhanson025@gmail.com (Joel Hanson) https://joel-hanson.github.io/discoveries/habit-tracker-challenge-grid/ A local-only challenge grid — tap a day, export PDF, ship on GitHub Pages. Shrink Kafka int payloads with bijou64 https://joel-hanson.github.io/discoveries/bijou64-compact-ints/ Sat, 06 Jun 2026 00:00:00 +0000 joelhanson025@gmail.com (Joel Hanson) https://joel-hanson.github.io/discoveries/bijou64-compact-ints/ Variable-length unsigned 64-bit ints — small numbers stay small on the wire. Kafka tombstones via console producer https://joel-hanson.github.io/discoveries/kafka-tombstone-null-marker/ Tue, 22 Apr 2025 00:00:00 +0000 joelhanson025@gmail.com (Joel Hanson) https://joel-hanson.github.io/discoveries/kafka-tombstone-null-marker/ Key + null value = tombstone. Use null.marker so the CLI can send it. Delete logs older than 7 days with find https://joel-hanson.github.io/discoveries/find-delete-old-logs/ Wed, 28 Feb 2024 00:00:00 +0000 joelhanson025@gmail.com (Joel Hanson) https://joel-hanson.github.io/discoveries/find-delete-old-logs/ find + -mtime + -delete is safer than a recursive rm when you scope the path.