dev-3.0 is a platform designed as a mission control interface for individuals managing multiple AI coding agents within a solo development environment. It addresses the challenges faced by developers who operate as their own code, product, and QA teams, especially when running several AI agents across different terminals, repositories, and branches. The tool aims to reduce the cognitive load and inefficiency caused by frequent context switching, merge conflicts, and the difficulty of tracking parallel workstreams. The core organizational structure of dev-3.0 is built around three layers: projects, tasks, and terminals. Work is managed using a Kanban board, where tasks can be created, moved between columns, and monitored for agent activity. Each task is mapped to an isolated git worktree, allowing multiple agents to operate in parallel on the same codebase without interfering with each other. The platform supports running agents such as Claude, Codex, Gemini, and any CLI-based tool within these isolated environments. For each task, a full terminal is provided, powered by Ghostty’s rendering engine and preconfigured with tmux, enabling split panes and persistent sessions. Key features include live terminal previews on hover for quick status checks, terminal bell alerts with visual badges, drag-and-drop workflow for tasks, and the ability to organize tasks with colored labels and full-text search. Users can create tasks from remote branches, run multiple attempts per task with different agents or prompts, and select the best result. PR review mode allows agents to review code without modifying it, and automated setup scripts can be configured per project to streamline environment preparation. The platform also offers one-click dev server launches for each task, custom workflow columns, dark and light themes, copy-on-write cloning for heavy directories, auto-allocated ports, and support for multiple windows across monitors. Column agents and automatic AI review features further automate workflow management. dev-3.0 is suitable for solo developers who need to coordinate and control multiple AI coding agents efficiently. It works with any terminal-based agent or CLI tool. The evidence does not specify its pricing or licensing model.
In the AI & ML space, dev-3.0 takes a focused approach. It focuses on managing and organizing multiple AI coding agents and projects efficiently without losing focus or context. It is built as an open-source project for solo developers. dev-3.0 is open source under the Apache-2.0 license. It runs on the command line, macOS, Windows, and Linux.
Behind dev-3.0 is h0x91b, and the product first shipped in 2026. Development happens publicly on GitHub with 219 stars and 495 commits in the last 90 days. Key capabilities include kanban board, multi-agent management, and terminal integration.
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