The GitHub Podcast

Cassidy and Andrea are joined by Sameen Karim, Senior Product Manager at GitHub, to dig into stacked pull requests, GitHub's newly launched (and long-requested) way to break large changes into a linked chain of small, reviewable PRs. Sameen pulls back the curtain on just how deep this went: every time a PR updates, GitHub runs a live "ghost merge" simulation behind the scenes to check whether it's mergeable, and stacking meant multiplying that complexity across up to 100 linked PRs at once. The team had to rethink core assumptions about how a PR's base branch relates to its actual merge target, rewrite parts of the merge box that hadn't been touched in over a decade, build an entirely new asynchronous merge path, and close a code owners loophole that could otherwise let people sneak changes past review. Sameen also talks about "agent-driven testing," where GitHub ran swarms of agents around the clock trying to break the feature, how teams like Vercel, Nuxt, and the React team are already adopting stacks, and what's next: support for stacks across forks. The episode closes with three open source picks: Sarah Drasner's visual code explainers, the AGENTS.md standard, and the open source gh-stack CLI Sameen built (and rewrote in Go) to manage stacks locally.
Links mentioned in the episode:
GitHub Universe
Sarah Drasner's code drawings
AGENTS.md
gh-stack CLI

The GitHub Podcast is produced and edited by editaudio.

Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

Cassidy and GPS are joined by Camilla Moraes, a product manager on GitHub's Maintainer Love (aka Tiny Wins) team, to talk about how the team finds and ships small, high-impact fixes for open source maintainers. Camilla walks through her path from engineering to product, and shares how the team's focus shifted this year from quick two-to-three-week "paper cuts" to a bigger, all-hands problem: the rise of low-quality, AI-generated contributions flooding repos. Camilla gives some insight into a new tool the Tiny Wins team has designed to address that issue: PR limits, which lets maintainers cap how many open PRs a user without write access can have at once. The group also talks through how the team prioritizes an endless stream of feedback from Slack, socials, and surveys, and how Camilla built her own repo-as-a-database system with Copilot to track it all. They close out with three open source picks: iOpenPod, Bento, and Camilla's own vibe-coded project for rating the health of a GitHub repo.
Links mentioned in the episode:
Maintainer Community
iOpenPod
Bento



The GitHub Podcast is produced and edited by editaudio.

Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

Cassidy and GPS dive into a round of AI hot takes to separate the extreme, engagement-bait opinions from the actual nuance. They debate whether developers still need to read AI-generated code, why “jobs won't hire you if you don't use AI” is more complicated than it sounds, and GPS's own hot take against the newest wave of paid coding bootcamps. From there they tackle whether skills have killed MCP, whether RAG is dead, and a borrowed hot take from their boss Martin: if you have to fine-tune a model to your code base, your code is bad. They close out with two open source picks: Pollinations AI, a generative AI platform experimenting with earning credits through code contributions, and Avian Visitors, a beautifully documented build log of a bird-listening e-ink display.

Links mentioned in the episode:

Pollinations AI
Avian Visitors

The GitHub Podcast is produced and edited by editaudio.

Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

In today’s episode, Cassidy, Marlene, and GPS tackle the ever-growing pile of new AI and agent terminology that's popped up seemingly overnight. They break down loop engineering (designing systems that prompt your agents instead of prompting them yourself), the Ralph loop that helped popularize it, and how squads and fleets let multiple agents split up planning, testing, and review work in parallel. They also dig into harness engineering (the scaffolding around a model that turns raw text generation into something useful), the newly coined “hill climbing,” and why forward deployed engineer might just be a solutions architect with better AI tooling. They wrap with a look at the spectrum between closed, open weight, and open source models, plus each host's open source pick of the week: Astro 7, the RAE API project, and Tau.

Links mentioned in the episode:

Loop Engineering by Addy Osmani
Ralph Wiggum as a "software engineer"
MCP
LangChain
Astro 7
RAE API
Tau

The GitHub Podcast is produced and edited by editaudio.

Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

The GitHub Podcast is back for Season 2! In the season opener, Cassidy Williams is joined by co-hosts Marlene Mhangami and GPS Peña-Siguenza. The trio revisits their favorite moments from Season 1, including Keeley Hammond's take on Electron and why “bloated JavaScript” hot takes don't hold up, Angie Jones's conversation on MCP and Goose, and the Tiny Wins team's work fixing the everyday "paper cuts" that make life easier for open source maintainers. From there, the hosts dig into their own winding paths into tech. GPS’ shares her journey from sysadmin to .NET and Cloud Advocacy to building a free open source platform that teaches cloud fundamentals (now used by nearly 7,000 people). Marlene traces her path from studying molecular biology to becoming a fixture in the Python community, and her early open source work on CuDF at NVIDIA, advocating for Ibis at Voltron Data, then starting the LangChain Azure repository at Microsoft. Cassidy rounds out the episode with insights to her front-end and React roots and her early days making tech memes on TikTok. Finally, each host shares an open source pick of the week: Mediabunny, Handy, and Cua.

The hosts' favorite episodes from last season:

Tiny Wins, Big Impact: Accessibility, MCP, and the Future of Open Source at GitHub

LIVE from GitHub Universe: Angie Jones on Goose, MCP, and the Real-World Future of AI Agents

Making Desktop Frameworks More Accessible with Electron

Other links mentioned in the episode:

Electron

MCP

Goose

Learn to Cloud

CUDF

Ibis

Langchain Azure

Mediabunny

Handy

https://github.com/trycua/cua

CUA

The GitHub Podcast is produced and edited by editaudio.

Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.