
The Changelog: Software Development, Open Source
Let's build something phoenix.new (Friends)
Jun 27, 2025 · 1 hr 35 min · 91.9 MB
0:00-1:35:31
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Our old friend Chris McCord, creator of Elixir’s Phoenix framework, tells us all about his new remote AI runtime for building Phoenix apps. Along the way, we vibe code one of my silly app ideas, calculate all the money we’re going to spend on these tools, and get existential about what it all means.
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Sponsors:
- Retool – Assemble your elite AI team, arm them with powerful custom tools, and watch them make your to-do list disappear. Start for free or book a demo at retool.com/agents
- Depot – 10x faster builds? Yes please. Build faster. Waste less time. Accelerate Docker image builds, and GitHub Actions workflows. Easily integrate with your existing CI provider and dev workflows to save hours of build time.
Featuring:
- Chris McCord – Website, GitHub, X
- Jerod Santo – Website, GitHub, LinkedIn, Mastodon, X
- Adam Stacoviak – Website, GitHub, LinkedIn, Mastodon, X
Show Notes:
Something missing or broken? PRs welcome!
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github.com
- 0:00Let's talk!
- 0:38Sponsor: Retool
- 2:37Phoenix & Friends
- 4:07The .new / .run TLDs
- 6:03Phoenix.new
- 9:13Phoenix system prompts
- 12:33Claude 4 vs the world
- 14:47What this is to Fly
- 17:15Bolt.new
- 19:13What's in a name
- 22:01How close we are
- 28:06New Phoenix direction?
- 30:36How Chris gets LLM value
- 35:23Sponsor: Depot
- 37:31Let the vibe coding begin
- 41:52Coding, coding, coding
- 43:57Stop for the meat bags
- 46:37Hitting issues
- 48:20It works!
- 53:06Theory of the monkeys
- 58:36Just ask the agent
- 59:44Agent Hot or Not
- 1:01:19Let the agents judge... seriously?
- 1:03:27Auditing the worst code
- 1:05:15Reframing hallucinate
- 1:07:31The code analysis summary
- 1:09:04The money spent
- 1:14:03Existing apps
- 1:15:03Our agent future
- 1:18:14Adam can't believe it
- 1:21:52Agent on a yak shave
- 1:23:53Take a little break
- 1:25:46One image vs many
- 1:27:36Exciting times
- 1:28:49The means to the end
- 1:30:24Just talk to it
- 1:32:49Bye, friends
- 1:34:18Coming up next