You face the South, Huitztlampa, land of thorns and flowers. Huitzilopochtli watches over what grows. The scene takes on turquoise tones of Xiuhtecuhtli mosaic.
Synapse
A continuous AI memory across three machines.
The lived problem
In 2026, I use Claude Code daily on three machines: my personal setup at home, the one on mission at LR Technologies, a backup laptop. Each machine manages its own memory (user preferences, project context, validated feedback). Result: I repeat the same explanations to Claude on each machine, or worse, I manually copy memory files between machines with conflict risks. The "multiple assistants that don't know each other" pattern quickly becomes counterproductive.
Architecture chosen
Synapse is a plugin that bootstraps a Git-versioned memory structure, with automatic background sync on every significant change. Memory is typed: feedback (learned work rules), project (active project context), user (user profile), reference (pointers to external sources). Each entry has explicit YAML frontmatter, a short description, a type. A `[[name]]` linking system weaves entries together like a mini knowledge graph.
Technical choices
Node.js + TypeScript for cross-platform. Native Claude Code hooks (SessionStart, SessionEnd, UserPromptSubmit) to intercept key moments without monkey-patching. Background Git sync via non-blocking `child_process`. Smart local cache to avoid unnecessary network round-trips. Sync collision detection: two machines write at the same time, Synapse attempts automatic per-entry merge, alerts the user on conflict.
Quality as obligation
283 tests from the first public release, green CI, coverage > 80%. Why this rigor for a personal plugin? Because memory is precious — a bug that silently overwrites an entry is context lost that I won't recover. TDD here isn't dogma but a guarantee that memory doesn't corrupt itself.
Community opening
Published open-source from the first commit on github.com/smaurier/claude-synapse. Careful documentation, concrete examples, ADR (Architecture Decision Records) to trace choices. Ambition: that other multi-machine Claude Code users can bootstrap their own system. No business model, no premium — a tool solving a real problem for those who have it.