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

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
  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.
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

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Co-hosts:

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

310 - Mitchell Hashimoto on Ghostty & His Agentic Coding Workflow

Fragmented - AI Developer Podcast