Changelog Interviews

By Changelog MediaTechnology

Changelog Interviews episodes

September 03Forking Cal.com to closed source
This week I’m joined by Peer Richelsen, co-founder of Cal.com. What if the majority of open source repositories are already compromised and we just don’t know it yet? That’s the theory Peer brings to the table this week. We dig into how AI has flattened the knowledge graph to the point that a 16-year-old can vibe hack a power station just as easily as their mom can vibe code an iOS app, why the reporting culture that has kept open source safe all these years is collapsing under AI generated noise, Cal.com’s move to fork its own codebase and take the sensitive parts private, and the eye opening reality that shipping “$1 of AI tokens for pennies on the dollar” is now a common startup business model.
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Sponsors:
Coder.com – Secure environments where devs and agents work in parallel. Open by design. Secure by default.
Buildkite – You deserve better CI. Buildkite is engineered for frontier scale and trusted by the teams setting the pace.
WorkOS – Auth for CLI with AuthKit from WorkOS — Bring secure browser-based login to your terminal apps using the OAuth Device Flow, with the same polished AuthKit experience plus SSO, MFA, and passkeys. Learn more at WorkOS.com and AuthKit.com
Fly.io – The home of Changelog.com — Deploy your apps close to your users — global Anycast load-balancing, zero-configuration private networking, hardware isolation, and instant WireGuard VPN connections. Push-button deployments that scale to thousands of instances. Check out the speedrun to get started in minutes.
Featuring:
Peer Richelsen – Website, GitHub, LinkedIn, X
Adam Stacoviak – Website, GitHub, LinkedIn, Mastodon, X
Show Notes:
Editorial disclosure: Adam states in the episode that he is a small seed investor in Cal.com.
Cal.com and Cal.diy
Cal.com is going closed source — here’s why
Moving to closed-source: the technical changes
Cal.diy on GitHub
Cal.diy contributing guide
Cal.com
Open source, agents, and contribution workflows
Swamp Club
OpenClaw
Mitchell Hashimoto: Vibing a Non-Trivial Ghostty Feature
GitHub Agentic Workflows
GitHub issue-intent, rationale, confidence, and approvals
AI-assisted security
Mozilla: Hardening Firefox with Anthropic’s Red Team
Mozilla: The zero-days are numbered
Anthropic and Mozilla’s Firefox security collaboration
Next.js security advisories
LiteLLM issue: malicious package and credential stealer
Something missing or broken? PRs welcome!
1 hr 55 min
August 25Postgres at PlanetScale
Sam Lambert is back after 4 years and he does not hold back! We cover $5 PlanetScale Postgres, the Neki “do-over” of Vitess, agents shipping schema changes through deploy requests, rolling back a 500TB table in seconds, and the very real question of whether to open source any of it. Plus: why he thinks the sleeping, lazy giants should be broken up.
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Sponsors:
Buildkite – You deserve better CI. Buildkite is engineered for frontier scale and trusted by the teams setting the pace.
WorkOS – Auth for CLI with AuthKit from WorkOS — Bring secure browser-based login to your terminal apps using the OAuth Device Flow, with the same polished AuthKit experience plus SSO, MFA, and passkeys. Learn more at WorkOS.com and AuthKit.com
Coder.com – Secure environments where devs and agents work in parallel. Open by design. Secure by default.
Fly.io – The home of Changelog.com — Deploy your apps close to your users — global Anycast load-balancing, zero-configuration private networking, hardware isolation, and instant WireGuard VPN connections. Push-button deployments that scale to thousands of instances. Check out the speedrun to get started in minutes.
Featuring:
Sam Lambert – Website, GitHub, LinkedIn, X
Adam Stacoviak – Website, GitHub, LinkedIn, Mastodon, X
Show Notes:
PlanetScale products and features
PlanetScale Postgres
PlanetScale Metal
Neki
Vitess
Database branching
Non-blocking schema changes
Deploy requests
Schema reverts
Database Traffic Control
Query Insights
PlanetScale MCP server
PlanetScale Skills
Benchmarking Postgres
Databases and infrastructure
PostgreSQL
MySQL
NVM Express (NVMe)
Amazon Aurora PostgreSQL Limitless Database
Amazon Web Services
Google Cloud
Companies and tools
Cursor
Y Combinator
Kick
Square
Cash App
GitHub
Pierre
Salesforce
Supabase
Multigres
Talks and prior episodes
Sam Lambert: Agents and Infrastructure — Cursor Compile 2026
Making the last database you’ll ever need — Founders Talk #85
Bringing Vitess to Postgres — Changelog Interviews #651
Something missing or broken? PRs welcome!
1 hr 43 min
July 21Canary tokens and digital tripwires
Haroon Meer is back! Haroon is the Founder of Thinkst, the ~50-person bootstrapped company behind Canary and Canarytokens — honeypots and tripwires you sprinkle inside your network and forget about until an attacker touches one. We talk about the AWS API key token attackers just can’t resist trying, the real credit card token backed by an actual bank partnership, Breadcrumbs (their brand-new feature that leads intruders straight to your canaries), a live demo where a hardware Canary becomes a Synology NAS in one click, and how a company with zero outbound sales and no price increase in ten years quietly passed $22.5 million in ARR.
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Changelog++ members get a bonus 4 minutes at the end of this episode and zero ads. Join today!
Sponsors:
Buildkite – You deserve better CI. Buildkite is engineered for frontier scale and trusted by the teams setting the pace.
WorkOS – Auth for CLI with AuthKit from WorkOS — Bring secure browser-based login to your terminal apps using the OAuth Device Flow, with the same polished AuthKit experience plus SSO, MFA, and passkeys. Learn more at WorkOS.com and AuthKit.com
Featuring:
Haroon Meer – Website, LinkedIn, X
Adam Stacoviak – Website, GitHub, LinkedIn, Mastodon, X
Show Notes:
Thinkst
Thinkst Canary
Thinkst Canary Security
Canary Tokens
Canary Tokens Docs
Canary Tokens on GitHub
OpenCanary on GitHub
OpenCanary Docs
TechCrunch: A decade in, bootstrapped Thinkst Canary reaches $20M in ARR without VC funding
Grafana Labs: Canary Tokens, the unsung heroes of security
Canary Love
Something missing or broken? PRs welcome!
2 hr 7 min
June 05From open source hits to OpenAI
This week I’m talking with Max Stoiber, currently working on ChatGPT’s plugin directory and app platform at OpenAI. We discuss the hundreds of open source projects nobody remembers alongside the big ones like react-boilerplate and styled-components, how Spectrum became part of GitHub and eventually helped shape GitHub Discussions, the founder growth that came from building Stellate, the GraphQL cache that turned into a dual acquisition by Shopify and The Guild, and why ChatGPT apps feel like a new surface for software.
Join the discussion
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Sponsors:
Coder.com – Secure environments where devs and agents work in parallel. Open by design. Secure by default.
WorkOS – Auth for CLI with AuthKit from WorkOS — Bring secure browser-based login to your terminal apps using the OAuth Device Flow, with the same polished AuthKit experience plus SSO, MFA, and passkeys. Learn more at WorkOS.com and AuthKit.com
Notion – Custom Agents that automate the busywork so your team can focus on real work. Try them free at notion.com/changelog
Fly.io – The home of Changelog.com — Deploy your apps close to your users — global Anycast load-balancing, zero-configuration private networking, hardware isolation, and instant WireGuard VPN connections. Push-button deployments that scale to thousands of instances. Check out the speedrun to get started in minutes.
Featuring:
Max Stoiber – Website, GitHub, X
Adam Stacoviak – Website, GitHub, LinkedIn, Mastodon, X
Show Notes:
Featured
Max Stoiber
Max Stoiber on GitHub
OpenAI
ChatGPT
Developers can now submit apps to ChatGPT
ChatGPT Developer mode
OpenAI Apps SDK examples
OpenAI Apps SDK UI
Model Context Protocol
Max’s open source and community path
styled-components
styled-components on GitHub
react-boilerplate
Max’s open source projects
Spec.fm
GitHub acquires Spectrum
GitHub Discussions
Slack
Circle
GraphQL and Stellate
Stellate
Announcing Stellate, the CDN for GraphQL APIs
GraphCDN is now Stellate and we’ve raised $30M
The Guild acquires Stellate
GraphQL
GraphQL Hive
GraphQL Yoga
GraphiQL
Firebase
Vercel
RethinkDB
Apollo Client
urql
DataLoader
Shopify and storefronts
Shopify
Shopify Liquid reference
Shopify themes
Horizon: 10 new free themes by Shopify
Horizon documentation
Shopify Agentic Storefronts
ChatGPT apps and MCP
Building MCP servers for ChatGPT and API integrations
Build with the Apps SDK
Apps in ChatGPT
MCP Apps overview
Zillow
Expedia
Leadership and founder references
COIN feedback framework
Gatsby
GitHub
The Guild
Shopify Engineering
Tools, platforms, and companies mentioned
Node.js
TypeScript
Bun
Zed
Ghostty
Fly.io
DX
Incident.io
Clerk
Raycast
Something missing or broken? PRs welcome!
1 hr 47 min
May 15MCP on Code Mode
This week I’m talking with Matt Carey about Code Mode and how most of us have been thinking about MCP all wrong. Matt works on the Agents SDK and MCP at Cloudflare — we discuss how server-side Code Mode lets one MCP server expose all ~2,500 Cloudflare API endpoints in about 1,000 tokens of context, the dynamic Worker loader that runs model-written code safely in a V8 isolate, Matt’s own workflow with Claude, where memory fits into the future of agents, and his Zaggy git wrapper that keeps agents from force-pushing his repos.
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Sponsors:
Coder.com – Secure environments where devs and agents work in parallel. Open by design. Secure by default.
Tailscale – Adam loves Tailscale! Easy, secure, identity-based access to anything. Tailscale deploys quickly and enables Zero Trust access to any resource on your network. From CI/CD runners across multi-cloud environments, to SaaS tools and infrastructure, Tailscale connects it all, seamlessly.
RWX – CI/CD platform for high velocity teams. When agents help developers write code in minutes, validation becomes your bottleneck. RWX gives agents programmatic control, sub-second cached builds, and semantic outputs they can act on. No commit required. Just iterate until CI passes, then push.
Fly.io – The home of Changelog.com — Deploy your apps close to your users — global Anycast load-balancing, zero-configuration private networking, hardware isolation, and instant WireGuard VPN connections. Push-button deployments that scale to thousands of instances. Check out the speedrun to get started in minutes.
Featuring:
Matt Carey – Website, GitHub, LinkedIn, X
Adam Stacoviak – Website, GitHub, LinkedIn, Mastodon, X
Show Notes:
Featured
Matt Carey on the Cloudflare blog
You’ve Been a Bad Agent
Cloudflare
Code Mode: give agents an entire API in 1,000 tokens
Code Mode: the better way to use MCP
Cloudflare MCP Server
Cloudflare Agents SDK
Cloudflare Agents SDK on GitHub
Cloudflare platform
Dynamic Workers
Cloudflare Workers
Durable Objects
AI Gateway
Vectorize
MCP and code-mode references
Model Context Protocol
Introducing the Model Context Protocol
Code execution with MCP
CodeAct paper
GitHub MCP Server
Datadog MCP Server
Pydantic Monty
Coding agents and tools
Claude Code
Claude Code voice dictation
OpenCode
Cursor
OpenAI Codex CLI
Changesets
Handy
Agent memory and personal AI
Granola
Letta
Mastra
Supermemory
Poke
Pi coding agent
Homelab and infrastructure
Swamp Club
Proxmox VE
Tailscale
1Password
K3s
Pi-hole
DuckDB
Apache Parquet
ClickHouse
Something missing or broken? PRs welcome!
1 hr 55 min
April 24Exploring with agents
Today on the show I’m talking with Amelia Wattenberger — designer, data-viz veteran, ex-GitHub Next, and now designing Intent at Augment Code. What if the last 30% of any software project is about to become the hardest part you’ve ever done? That’s the argument Amelia is making today. We discuss the identity crisis developers are having as agents take over the keyboard, the epic redesign of developer tooling in this agent-first world, the arc from autocomplete to chat to CLI back to UI, why Intent treats a workspace as their core primitive not a chat thread, the tradeoffs between one-worktree-per-agent vs. one-worktree-per-task, and why she thinks prototyping just got easier but finishing got harder.
Join the discussion
Changelog++ members save 8 minutes on this episode because they made the ads disappear. Join today!
Sponsors:
WorkOS – Auth for CLI with AuthKit from WorkOS — Bring secure browser-based login to your terminal apps using the OAuth Device Flow, with the same polished AuthKit experience plus SSO, MFA, and passkeys. Learn more at WorkOS.com and AuthKit.com
NordLayer – Toggle-ready network security for modern businesses. Get an exclusive offer: up to 22% off NordLayer yearly plans plus 10% on top with the coupon code changelog-10-NORDLAYER. Try it risk-free with a 14-day money-back guarantee at nordlayer.com/thechangelog
RWX – CI/CD platform for high velocity teams. When agents help developers write code in minutes, validation becomes your bottleneck. RWX gives agents programmatic control, sub-second cached builds, and semantic outputs they can act on. No commit required. Just iterate until CI passes, then push.
Fly.io – The home of Changelog.com — Deploy your apps close to your users — global Anycast load-balancing, zero-configuration private networking, hardware isolation, and instant WireGuard VPN connections. Push-button deployments that scale to thousands of instances. Check out the speedrun to get started in minutes.
Featuring:
Amelia Wattenberger – Website, GitHub, X
Adam Stacoviak – Website, GitHub, LinkedIn, Mastodon, X
Show Notes:
GitHub Copilot — the launch that kicked off this era (mentioned ~12×)
GitHub Next — GitHub’s R&D team; where Amelia worked
GitHub Actions
Intent — Augment Code’s new workspace-first agent app that Amelia is building (the core product discussion)
Augie — Augment’s agent
Claude Code
Codex
Notion AI
VS Code
Incus — system-level containers/VMs; the Canonical LXD fork
Proxmox — Adam’s hypervisor platform for the sandbox
ZFS — storage layer Incus is built on
Bun — JavaScript runtime
Rust
Go
Ruby on Rails
SvelteKit
Svelte
TypeScript
TanStack Start
Something missing or broken? PRs welcome!
1 hr 37 min
March 11From Tailnet to platform
Adam talks with Tailscale co-founder and Chief Strategy Officer David Carney about where Tailscale is headed next: TSIDP, TSNet, multiple tailnets, and Aperture. They get into clickless auth (via TSIDP), TSNet apps, multiple tailnets for isolation and control, and Aperture, Tailscale’s private AI gateway for API key management, observability, and agent security.
Join the discussion
Changelog++ members save 8 minutes on this episode because they made the ads disappear. Join today!
Sponsors:
Augment Code – Adam loves “Auggie” – Augment Code’s CLI that brings Augment’s context engine and powerful AI reasoning anywhere your code goes. From building alongside you in the terminal to any part of your development workflow.
NordLayer – Toggle-ready network security for modern businesses. Get an exclusive offer: up to 22% off NordLayer yearly plans plus 10% on top with the coupon code changelog-10-NORDLAYER. Try it risk-free with a 14-day money-back guarantee at nordlayer.com/thechangelog
Squarespace – Turn your expertise into a business with the all-in-one platform for websites, services, and getting paid. Use code CHANGELOG to save 10% on your first website purchase.
Fly.io – The home of Changelog.com — Deploy your apps close to your users — global Anycast load-balancing, zero-configuration private networking, hardware isolation, and instant WireGuard VPN connections. Push-button deployments that scale to thousands of instances. Check out the speedrun to get started in minutes.
Featuring:
David Carney – Website, GitHub, X
Adam Stacoviak – Website, GitHub, LinkedIn, Mastodon, X
Show Notes:
Send an email to David ~> [email protected]
Mentioned in this episode
Tailscale
Aperture by Tailscale
TSIDP
TSNet
Multiple tailnets
Tailnet policy file syntax
Model Context Protocol (MCP)
MCP specification
Proxmox VE
Incus
OIDC / OpenID Connect
OAuth 2.0
Okta
Microsoft Entra ID
Google Workspace
Keycloak
Salesforce
Anthropic
Amazon Bedrock
Oso
Cerbos
Go
GopherCon
Simon Willison
Something missing or broken? PRs welcome!
1 hr 43 min
February 27Opus 4.5 changed everything
Burke Holland works on GitHub Copilot by day and codes with his AI agents always. Early January, Burke posted about how Opus 4.5 changed everything. We were all still buzzing from the holiday-season 2x usage bump Claude gave us, and Opus 4.5 felt like a genuine step function in capability. Burke and I get into all the details. Opus 4.5 may have started the fire, but GPT-5.3 Codex is certainly living up to the hype.
Join the discussion
Changelog++ members get a bonus 17 minutes at the end of this episode and zero ads. Join today!
Sponsors:
Augment Code – Adam loves “Auggie” – Augment Code’s CLI that brings Augment’s context engine and powerful AI reasoning anywhere your code goes. From building alongside you in the terminal to any part of your development workflow.
Squarespace – Turn your expertise into a business with the all-in-one platform for websites, services, and getting paid. Use code CHANGELOG to save 10% on your first website purchase.
Notion – Custom Agents that automate the busywork so your team can focus on real work. Try them free at notion.com/changelog
Featuring:
Burke Holland – Website, GitHub, X
Adam Stacoviak – Website, GitHub, LinkedIn, Mastodon, X
Show Notes:
Opus 4.5 is going to change everything
Jon Gjengset Explains Rust 2026
How we rebuilt Next.js with AI in one week Rebuilding Next.js using AI in a single week
The era of the Small Giant (Changelog #673)
Layercode — Voice AI infrastructure for TypeScript developers
Diffs — An open source diff and code rendering library
Pierre Computer Company
Code Storage
Entire — Developer platform from former GitHub CEO Thomas Dohmke
Tigris Data
@traskjd tweet
GitHub Copilot
Something missing or broken? PRs welcome!
1 hr 44 min
February 19Selling SDKs in the era of many Claudes
Steve Ruiz joins us for a deep-dive on tldraw (a very good free whiteboard) and the business he’s built selling SDKs that help others build very good whiteboards (and more) with tldraw’s high-performance web canvas.
Along the way, we discuss the excitement/fear we share about keeping our agents busy, how SDK and infra companies are affected differently by agentic software than SaaS companies, how Steve is approaching the coming era of internal tooling, what will happen when we equip LLMs with an infinite canvas, and more.
Join the discussion
Changelog++ members get a bonus 15 minutes at the end of this episode and zero ads. Join today!
Sponsors:
Augment Code – Adam loves “Auggie” – Augment Code’s CLI that brings Augment’s context engine and powerful AI reasoning anywhere your code goes. From building alongside you in the terminal to any part of your development workflow.
NordLayer – Toggle-ready network security for modern businesses. Get an exclusive offer: up to 22% off NordLayer yearly plans plus 10% on top with the coupon code changelog-10-NORDLAYER. Try it risk-free with a 14-day money-back guarantee at nordlayer.com/thechangelog
Squarespace – A website makes it real! Use code CHANGELOG to save 10% on your first website purchase.
Featuring:
Steve Ruiz – Website, LinkedIn, X
Adam Stacoviak – Website, GitHub, LinkedIn, Mastodon, X
Jerod Santo – Website, GitHub, LinkedIn, Mastodon, X
Show Notes:
tldraw.com
tldraw.dev
Remarkable: the paper tablets for focused work
Agent starter kit • tldraw docs
tldraw fairies
Something missing or broken? PRs welcome!
1 hr 51 min
February 11Building the machine that builds the machine
Paul Dix joins us to discuss the InfluxDB co-founder’s journey adapting to an agentic world. Paul sent his AI coding agents on various real-world side quests and shares all his findings: what’s going to prod, what’s not, and why he’s (at least for a bit) back to coding by hand.
Update: He’s back to letting the AIs write code, but with a lot more oversight. For now…
Join the discussion
Changelog++ members save 4 minutes on this episode because they made the ads disappear. Join today!
Sponsors:
Namespace – Speed up your development and testing workflows using your existing tools. (Much) faster GitHub actions, Docker builds, and more. At an unbeatable price.
Tiger Data – Postgres for Developers, devices, and agents The data platform trusted by hundreds of thousands from IoT to Web3 to AI and more.
Fly.io – The home of Changelog.com — Deploy your apps close to your users — global Anycast load-balancing, zero-configuration private networking, hardware isolation, and instant WireGuard VPN connections. Push-button deployments that scale to thousands of instances. Check out the speedrun to get started in minutes.
Featuring:
Paul Dix – GitHub, X
Adam Stacoviak – Website, GitHub, LinkedIn, Mastodon, X
Jerod Santo – Website, GitHub, LinkedIn, Mastodon, X
Show Notes:
Build the machine that builds the machine
Paul dix on X: “2026: the great engineering divergence”
InfluxData
Something missing or broken? PRs welcome!
1 hr 37 min

About Changelog Interviews

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Conversations with the hackers, leaders, and innovators of the software world. Adam Stacoviak brings you in-depth interviews with the best and brightest in software engineering, open source &…