Wtdb – give every Git worktree its own database
I run a lot of agentic coding sessions in parallel, each in its own git worktree. Every worktree points at the same local Postgres though, so the moment one branch runs a migration it changes the schema out from under the others. I'd end up with agents tripping over each other, or me babysitting which branch "owned" the DB at any given moment. I made this to fix it. I hope you might find it helpful too.
Wtdb – give every Git worktree its own database launched on June 14, 2026 with 5 votes, #2,466 of 22,647 launches that month and more than 75% of that year's launches.
What it does
Copy databases and update environment variables when spawning new git worktrees. - willhackett/wtdb
You use git worktree to work on several branches at once. But every worktree points at the same local dev database. The moment one branch runs a migration, it changes the schema the others rely on — so concurrent branches with diverging migrations step on each other. A fresh worktree is also missing everything git ignores: your .env / .dev.vars , your node_modules . So it isn't even runnable until you copy things across by hand. curl -fsSL https://raw.githubusercontent.com/willhackett/wtdb/main/install.sh | sh (Homebrew coming later, maybe.) { "envFile" : " .dev.vars " , "dbEnvVar" : " DATABASE_URL " , "pathsToCopy" : [ " node_modules " ] } envFile — the env file to copy and rewrite ( .env…from github.com
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Parallel CodeMar 2026 · parallelcode.app · ▲159I kept running into a structural problem with AI coding tools. You try one agent. It makes changes. You try another. Now you're manually diffing branches and cleaning up experimental commits. The tools are powerful, but the workflow isn’t designed for comparison. So I built Parallel Code. It runs Claude Code, Codex, and Gemini CLI natively (no API wrapper, no feature abstraction), but isolates each agent in: its own terminal its own Git worktree its own feature branch The workflow becomes: Spawn N worktrees Assign one AI agent per worktree Let them implement independently Compare diffs Merge…
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