Failover without breaking the stream
Moving a request to a healthy provider is easy. Moving it after the first token has already reached the client is the hard part.
Blog
Notes from the build.
Longer than a commit message: architecture decisions, expensive mistakes, and the patterns that finally worked.
One route, five windows
How a single SvelteKit route became a workspace, a dock, a desktop-locked board, and two on-demand windows, all reading the same local database.
An agent that edits files should ask first
Buffering every write until a human approves the plan, and why the approval gate belongs in the runtime rather than the prompt.
Giving an LLM access to ERP data without giving it SQL
How an MCP server in Rust exposes analytics to LLM clients through pre-authorized tools, and why parameter binding beats a query-writing model.
Resumable uploads for multi-gigabyte files
A chunked upload protocol built on Elysia.js, and what it takes to survive a connection that drops halfway through a 4 GB driver pack.
When every product has different fields
Modelling hardware specifications that do not share a schema, using PostgreSQL JSONB, Prisma, and a form builder that reads its own definition.
Deploying Docker without letting a request handler touch the host
Splitting a deployment control plane into a request layer, background workers, and restricted runtime adapters so a web request never executes infrastructure work.