2026.06.25

📰 News & Discussions

The Limits of Generalized Sync: A Taxonomy of Architectures, Trade‑offs, and Decision Factors

"Web applications increasingly compete on responsiveness, driving engineers to move data closer to the client. Sync engines promise reusable synchronization infrastructure, but whether that promise holds across application types remains an open question. This thesis investigates the extent to which synchronization can be generalized across web applications." See also HN discussion

Convex + PowerSync: Design Notes from the Experimental Release

"We've added experimental Convex support to PowerSync, after a steady amount of requests for it from the community. This post is the engineering side of that work: the design decisions we made, the parts of Convex that fit PowerSync well, the rough edges, and the questions we're still working through."

🛠️ Tools & Resources

Liveblocks AI Spreadsheet

"A realtime, multiplayer AI spreadsheet built with Liveblocks, Handsontable, Feeds, Vercel AI SDK, and Next.js."

Giper Baza

"Decentralized high-available database with conflict-free real-time synchronization."

PMB: Local-first memory for your AI coding agent

"Persistent memory for AI coding agents - local, offline, no API keys. For developers on Claude Code / Cursor / Codex who are tired of re-explaining context every session. PMB remembers your decisions, lessons, and project facts in one SQLite file on your disk and feeds them back through MCP."

✨ Apps

Joplin Web App

"Joplin Web is local-first. Notes and attachments are stored locally in your browser, so the app can be used offline, and they can optionally be synced with one of the supported sync targets. Until synchronisation is configured, each browser (or browser profile) has its own separate note collection. Clearing your browser's site data for the web app will delete the local copy of your notes — if synchronisation is configured you can recover them by signing in again, otherwise the data cannot be recovered."

AgentsView

"A local-first desktop and web app for browsing, searching, and analyzing your past AI coding sessions. See where your agents' time and money actually go — across every project, model, and tool."

Oak Keyring

"Oak Keyring is a local-first TUI password manager. The vault starts on your device; Google Drive sync is optional encrypted transport and backup that you control."

Open Record/Replay

"Open Record/Replay is a local-first macOS recorder for workflows that are easier to show than to write down. It captures a user's real desktop actions into structured artifacts such as session.json and events.jsonl, validates the recording quality, and packages the evidence for an agent's skill creation flow."

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Sponsors

Local-First News is sponsored by PowerSync. Interested in sponsoring? Get in touch