EPISODE · Apr 14, 2026 · 59 MIN

310 - Mitchell Hashimoto on Ghostty & His Agentic Coding Workflow

from Fragmented - AI Developer Podcast · host Kaushik Gopal, Iury Souza, Mitchell Hashimoto

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 The freedom to run the program as you wish, for any purpose. The freedom to study how the program works, and change it to make it do what you wish. The freedom to redistribute copies so you can help others. The freedom to distribute copies of your modified versions to others. Mitchell's tweet on unsolicited PRs and transfer of ownership 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 We'd love to hear from you. Email is the best way to reach us or you can check our contact page for other ways. We want to hear all the feedback: what's working, what's not, topics you'd like to hear more on. Contact us Newsletter Youtube Website Co-hosts: Kaushik Gopal Iury Souza [!fyi] We transitioned from Android development to AI starting withEp. #300. Listen to that episode for the full story behind our new direction.