Show HN: Hydra – Open-source agentic terminal with a PTY daemon

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Three things 1. Finds previous sessions, 2. remote without SSH inbound and 3. new Brain feature creates and manages submissions. And it runs multiple agents on one objective. You give Hydra a goal, a coordinator model plans it into tasks and decides how many worker sessions it needs, then those workers run in parallel, each in its own git worktree off one frozen base commit. Nothing touches your HEAD, your index or your branch. Accepted work is captured as a git object under refs/hydra/brain/artifacts, and combining it happens through a private index rather than a checkout. You merge it yourself, or you don't. The workers are ordinary retained sessions, so you can open any of them mid-run and read what that agent is actually doing instead of watching a progress bar. If you build a project that requires maintenance later these sessions give you expert workers of each sub module and you can directly interact with or Brain can allocate those tasks.