Fragmented - AI Developer Podcast

310 - Mitchell Hashimoto on Ghostty & His Agentic Coding Workflow

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Mitchell Hashimoto co-founded HashiCorp, built some of the most impressive DevOps tools like Vagrant and Terraform, sold the company to IBM — and then built a terminal. Ghostty is now where a huge chunk of agentic coding actually happens. Mitchell was an AI skeptic. We walk through his six-step adoption framework and the workflows he uses day to day — warm-start research, Hail Mary prompts across twenty GitHub issues, and knowing when to let the agent slam dunk it.

Full shownotes at fragmentedpodcast.com.

Show Notes
  • HashiCorp
    • Vagrant
    • Terraform
    • IBM acquires Hashicorp
      • Ghostty
      • Ghostty - Mitchell's fast, native terminal built for platform integration across Mac and Linux
      • Terminal shell
      • SSH - secure shell
      • PTY - pseudoterminals
      • Terminal Multiplexers
        • tmux - most popular open source one
        • XTGETTCAP by xterm
        • libghostty - the cross-platform terminal emulation library that powers Ghostty's core
        • xterm-js - powers terminal for apps like VSCode and the cloud
        • Jedi Term - Intellij's embedded terminal
        • Ghostty is now a non-profit
        • cmux - native macOS terminal
          • multiplexer built on libghostty — a fork Mitchell champions
        • Free Software Definition -
          • the 4 essential freedoms
          1. The freedom to run the program as you wish, for any purpose.
          2. The freedom to study how the program works, and change it to make it do
            3. what you wish.
          3. The freedom to redistribute copies so you can help others.
          4. The freedom to distribute copies of your modified versions to others.
          5. Mitchell's tweet on unsolicited PRs and transfer of ownership
            6. The AI Adoption Journey
            • My AI Adoption Journey -
              • Mitchell's blog post outlining his five-step framework
            • Step 1: Drop the Chatbot
              • Episode 301 - AI Coding ladder - Different stages of AI
                • adoption
              • Step 2: Reproduce Your Own Work
              • Step 3: End-of-Day Agents
                • OpenAI Deep Research -
                  • kick off research tasks for a "warm start" the next morning
                • Spine AI research - deep research tool for
                  • longer, hour-long analysis tasks
                • Step 4: Outsource the Slam Dunks
                  • Claude status hooks - warcraft peons
                  • Conductor
                  • Step 5: Engineer the Harness
                    • Episode 307 - Harness Engineering - Fragmented's deep dive
                      • on harness engineering, heavily inspired by Mitchell's post
                    • Step 6: Always have an Agent running
                    • Peter Steinberger
                    • Codex plugin for Claude Code
                      • Get in touch

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                        • Co-hosts:
                        • Kaushik Gopal
                        • Iury Souza

                          • [!fyi] We transitioned from Android development to AI starting with
                          Ep. #300. Listen to that episode for the full story behind

                          our new direction.

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                          Fragmented - AI Developer PodcastBy Kaushik Gopal, Iury Souza
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