Monthly summary for 2026-05 focused on sst/opencode improvements to the session picker and associated UI fixes. Delivered a feature to improve discoverability and updated interaction patterns, with a targeted TUI fix to ensure correct ordering by recency.

Month: 2026-04 — Developer work on powersync-service delivering reliability, observability, and performance enhancements across MongoDB and PostgreSQL integrations. Focused on decoding MongoDB connection credentials, robust WAL slot handling during PostgreSQL snapshots, and richer diagnostics with WAL budget awareness. These changes reduce operational risk, improve data integrity, and provide actionable guidance for operators during failover and high-load periods.

March 2026 performance highlights: Delivered two high-impact documentation tooling enhancements that directly improve developer productivity and user understanding of SQL syntax. In powersync-service, introduced a SQL Syntax Diagram Generator that builds interactive MDX/HTML railroad diagrams from W3C EBNF grammars for Sync Streams and Sync Rules, including coverage checks, diff-friendly outputs, and config-driven inlining. In powersync-docs, added grammar reference pages with railroad diagrams, navigation, operator precedence, and lexical rules; co-authored to improve consistency and navigability. No explicit bug fixes documented this month; focus was on delivering valuable documentation tooling and reference content. Technologies demonstrated include TypeScript scripting, multi-package PNPM workflows, EBNF grammar parsing, static site generation, and SVG-based diagrams, collectively reducing onboarding time and support questions.

February 2026: Delivered core platform improvements for Postgres storage, expanded runtime configuration, and enhanced observability. Key work included refactoring Postgres compaction for performance, adding database URL parameter support across PostgreSQL, MongoDB, and MySQL with clear precedence and validation rules, and enhancing logging around parameter queries and checkpoints for easier debugging and monitoring. These changes reduce latency in compaction, enable dynamic tuning of DB connections, and improve overall system reliability and traceability.