Fallthrough [Extended]

A deep and nuanced conversational podcast focused on technology, software, and computing.

149 kr/månad
  1. The Spy Who Banned Me

    −17 h • Endast för abonnenter

    The Spy Who Banned Me

    It's Fallthrough time! In this episode, Kris, Matthew, and Steve get into the time Steve pointed Anthropic's Fable at a side project he hadn't touched since January and watched it shepherd 95 pull requests in three days, the US government export banning Fable and its sibling Mythos, the insanity of Mythos popping a national security agency's boxes in a matter of hours, and why a software engineer that runs 24/7 for anyone with an account is exactly the kind of thing governments get nervous about. We've got supporter content, of course! This week that includes whether your AI agents should file their bugs in your repo or on a private board where they can make as big a mess as they want, the model that forged itself a cookie to get around a testing problem and what it means for an AI to actually understand being a software developer, Steve's deliberately-out-of-context claim that millennials are the only people who know how computers work, Trump signing a quantum cryptography order while openly asking what the whole thing even is, Kris's year-long sales tax rabbit hole where nobody can agree where a person physically is, and the Diet Coke can math that says one exploding rocket is about one percent of an hour of making aluminum. Not a supporter yet? Fix that today by heading over to https://fallthrough.fm/subscribe where you'll get not only extra content but also higher quality audio. Sign up today! If you prefer to watch this episode, you can view it on YouTube: https://youtu.be/h6Ve7WKIQVc ( https://youtu.be/h6Ve7WKIQVc ). No episode of the aftershow this week. We'll have more aftershow episodes soon! In the meantime, catch up on previous episodes at https://break.show. Thanks for tuning in and happy listening! Table of Contents: * Prologue (00:00:00) * Chapter 1: Burning the Whole Allotment, 95 PRs in Three Days (00:01:56) * Chapter 2: Beads vs Linear, Where Agents Keep Their Bugs [Extended] (00:07:24) * Chapter 3: Is Fable Coming Back? Export Controls and the NSA Hack (00:09:32) * Chapter 4: Past the Custom Harness, a Model That Shepherds Its Own PRs [Extended] (00:15:06) * Chapter 5: A Software Engineer in Every Pocket, Running 24/7 (00:19:57) * Chapter 6: Anthropic Can't Explain Itself, Dario and the Death of Media Training (00:22:21) * Chapter 7: Get Young People in Government? Millennials and Who Knows Computers [Extended] (00:25:46) * Chapter 8: Legislating What You Don't Understand, Trump's Quantum Order [Extended] (00:32:02) * Chapter 9: I'm Already Busy, Civic Ambivalence and the Tax Code Nobody Gets [Extended] (00:38:58) * Chapter 10: From Housing to Coke Cans, the Math of Individual Action [Extended] (00:46:14) * Chapter 11: 400 Saved or 600 Dead, Framing, Harm, and the Wealth Tax [Extended] (00:48:48) * Chapter 12: Echo Chambers, Anti-AI Art, and the LinkedIn Performance [Extended] (00:58:37) * Chapter 13: People Are People, Contradictions and Closing the Loop (01:08:32) * Epilogue (01:12:49) Host: Kris Brandow Co-Host: Matthew Sanabria and Steve Klabnik Producer: Kris Brandow Beats: Breakmaster Cylinder Socials: * Website ( https://fallthrough.fm/ ) * Bluesky ( https://bsky.app/profile/fallthrough.fm ) * Threads ( https://www.threads.net/@fallthroughfm ) * X/Twitter ( https://x.com/fallthroughfm ) * LinkedIn ( https://linkedin.com/company/fallthrough ) * Instagram ( https://www.instagram.com/fallthroughfm/ ) * TikTok ( https://www.tiktok.com/@fallthroughfm ) * Changelog Zulip ( https://changelog.zulipchat.com/#narrow/channel/481259-fallthrough ) * Gophers Slack ( https://gophers.slack.com/archives/C085RJ99RFT )

    1 tim 17 min
  2. Of Fables and Mythos

    19 juni • Endast för abonnenter

    Of Fables and Mythos

    Another week, another Fallthrough! In this episode, Kris and Matthew get into the US government slapping export controls on Anthropic's Mythos and Fable models, the marketing machine that made them sound world-ending, and how much of the AI hype actually holds up. We've got supporter content, of course! This week that includes whether your phone is already an extension of your mind and the "Clean Talk" cleaning influencers who will happily tell you to mix two chemicals that quietly kill you, the Egyptologist on a date who proves a person is smart but people are dumb, why we throw you in jail for robbing a bank but only fine you for wrecking the economy, a no-holds-barred roast of Claude Code and the flickering bug that still will not die, and why AI in the creative fields is really just Photoshop with no shortcut to doing good work. Not a supporter yet? Fix that today by heading over to https://fallthrough.fm/subscribe where you'll get not only extra content but also higher quality audio. Sign up today! If you prefer to watch this episode, you can view it on YouTube. No episode of the aftershow this week. We'll have more aftershow episodes soon! In the meantime, catch up on previous episodes at https://break.show. Thanks for tuning in and happy listening! Table of Contents: * Prologue (00:00:00) * Chapter 1: Mythos and Fable, the Export Control, and Anthropic's Marketing Machine (00:02:18) * Chapter 2: Freedom of Thought, Safety Gating, and Books in the Library (00:06:40) * Chapter 3: Is Your Phone an Extension of Your Mind, Clean Talk, and Misunderstood Danger [Extended] (00:10:46) * Chapter 4: Collective Knowledge, the Pyramids, and "A Person Is Smart, People Are Dumb" [Extended] (00:20:16) * Chapter 5: Rob a Bank vs Destroy the Economy, and a Broken System [Extended] (00:24:25) * Chapter 6: Why You Can't Believe the AI Labs: Dogfooding, Lines of Code, and No Profit (00:26:52) * Chapter 7: Nobody Knows Where the Ceiling Is, and the Coming Commodity Market (00:36:06) * Chapter 8: Local Models, the Chocolate Shop AI Node, and Harness Over Model (00:38:11) * Chapter 9: So Why Is Fable Actually Banned? Brain Drain, DOGE, and Jailbreaks (00:45:30) * Chapter 10: It's Still All Hype, and the Government Did Anthropic's Marketing (00:53:21) * Chapter 11: Claude Code Is a Pile of Junk: Lock-In, the Flicker Bug, and Half-Baked Features [Extended] (01:00:27) * Chapter 12: The Sentiment Shift: From Anthropic Darling to Team OpenAI (01:12:45) * Chapter 13: The Future Is Harnesses, Not Models, and OpenAI's Better Bet (01:18:36) * Chapter 14: Is Software Dead? Jobs, the Coming Shortage, and Don't Let Your Brain Atrophy (01:22:49) * Chapter 15: AI in Creative Fields, Photoshop, and Why There's No Shortcut to Good Work [Extended] (01:33:40) * Epilogue (01:39:29) Host: Kris Brandow Co-Host: Matthew Sanabria Producer: Kris Brandow Beats: Breakmaster Cylinder Socials: * Website ( https://fallthrough.fm/ ) * Bluesky ( https://bsky.app/profile/fallthrough.fm ) * Threads ( https://www.threads.net/@fallthroughfm ) * X/Twitter ( https://x.com/fallthroughfm ) * LinkedIn ( https://linkedin.com/company/fallthrough ) * Instagram ( https://www.instagram.com/fallthroughfm/ ) * TikTok ( https://www.tiktok.com/@fallthroughfm ) * Changelog Zulip ( https://changelog.zulipchat.com/#narrow/channel/481259-fallthrough ) * Gophers Slack ( https://gophers.slack.com/archives/C085RJ99RFT )

    1 tim 41 min
  3. Shall We Play A Game?

    12 juni • Endast för abonnenter

    Shall We Play A Game?

    Matt and Kris welcome Fernando Duran, the creator of SAD Servers, the site that drops you onto a broken Linux box over SSH with a timer running and dares you to fix it. They go through what SAD Servers is, the spite-fueled interview story that started it all, how companies use it to hire, and the surprisingly lean infrastructure (plus the tiny Go "checker") that makes the whole thing work. We've got supporter content, of course! This week that includes why technical interviews are broken and the spite that turned one into a business, taking the number two spot on Hacker News without toppling over and the layers that keep the bad actors out, why three availability zones might just be expensive cargo-culting, the metrics that quietly lie to you (from Google-style error budgets to mean time to recovery versus mean time between failures), and the company that accidentally spent half a billion dollars on tokens. Not a supporter yet? Fix that today by heading over to https://fallthrough.fm/subscribe where you'll get not only extra content but also higher quality audio. Sign up today! If you prefer to watch this episode, you can view it on YouTube. No episode of the aftershow this week. We'll have more aftershow episodes soon! In the meantime, catch up on previous episodes at https://break.show. Thanks for tuning in and happy listening! Table of Contents: * Prologue (00:00:00) * Chapter 1: What SAD Servers Is, Click a Button, Get a Broken Server (00:01:57) * Chapter 2: Why He Built It, Troubleshooting, Learning, and Bad Interviews (00:03:33) * Chapter 3: From Idea to AMI, How Scenarios Get Built (00:08:53) * Chapter 4: Why Tech Interviews Are Broken [Extended] (00:13:58) * Chapter 5: How Companies Use SAD Servers to Hire (00:23:27) * Chapter 6: Kubernetes Playgrounds, SAD Pager, and Scenario Design (00:26:37) * Chapter 7: The Architecture, Django, Ephemeral VMs, and the Consul Proxy (00:33:52) * Chapter 8: Running Lean, Spot Instances, SQLite, and Surviving in Ohio (00:43:06) * Chapter 9: Keeping the Bad Actors Out, Rate Limits and Layered Defense [Extended] (00:46:28) * Chapter 10: The Checker, a Tiny Go Agent and the Problem of "Did You Win?" (00:55:49) * Chapter 11: AI Evaluations, SRE Battle and the Agent Gold Rush (01:00:41) * Chapter 12: Spicy Takes I, Availability Zones Are Overrated [Extended] (01:04:37) * Chapter 13: Spicy Takes II, Error Budgets and the Google Cargo Cult [Extended] (01:15:34) * Chapter 14: Spicy Takes III, MTBF vs MTTR, Bad Metrics, and Load Testing Theater [Extended] (01:26:07) * Chapter 15: Spicy Takes IV, the Token Economy and Why Deleting Code Still Matters [Extended] (01:32:49) * Epilogue (01:38:26) Host: Matthew Sanabria Co-Host: Kris Brandow Guest: Fernando Duran Producer: Kris Brandow and Matthew Sanabria Beats: Breakmaster Cylinder Socials: * Website ( https://fallthrough.fm/ ) * Bluesky ( https://bsky.app/profile/fallthrough.fm ) * Threads ( https://www.threads.net/@fallthroughfm ) * X/Twitter ( https://x.com/fallthroughfm ) * LinkedIn ( https://linkedin.com/company/fallthrough ) * Instagram ( https://www.instagram.com/fallthroughfm/ ) * TikTok ( https://www.tiktok.com/@fallthroughfm ) * Changelog Zulip ( https://changelog.zulipchat.com/#narrow/channel/481259-fallthrough ) * Gophers Slack ( https://gophers.slack.com/archives/C085RJ99RFT )

    1 tim 40 min
  4. Pull the (AI) Lever, Kronk!

    5 juni • Endast för abonnenter

    Pull the (AI) Lever, Kronk!

    Matt and Kris welcome back Bill Kennedy who's been working on Kronk, AI tooling in Go. They go through what Kronk (and it's dependent library Yzma) is, the power of running models locally, and how they see coding agents and LLMs shaping the future of the industry. We've got supporter content, of course! This week that includes the message-caching trick that turns seconds into thirty milliseconds, why hybrid models quietly wreck the KV cache, Bill's "thirty billion knobs" explainer for dense versus mixture-of-experts models, why demo day is destroying engineering teams, and the stealth-startup math nobody says out loud. Not a supporter yet? Fix that today by heading over to https://fallthrough.fm/subscribe where you'll get not only extra content but also higher quality audio. Sign up today! If you prefer to watch this episode, you can view it on YouTube. No episode of the aftershow this week. We'll have more aftershow episodes soon! In the meantime, catch up on previous episodes at https://break.show. Thanks for tuning in and happy listening! Table of Contents: * Prologue (00:00:00) * Chapter 1: Why Go for AI, and the Origin of Kronk (00:02:14) * Chapter 2: What Kronk Is, an SDK to Kill the Model Server (00:08:56) * Chapter 3: Running It Yourself: Hugging Face, GGUF, and Hardware (00:14:58) * Chapter 4: Builders and the llama.cpp Version Treadmill [Extended] (00:22:38) * Chapter 5: Tool Calling, Parsing, and Message Caching [Extended] (00:27:44) * Chapter 6: Prefill, KV Cache, and Why Hybrid Models Wreck It [Extended] (00:34:02) * Chapter 7: Model Architectures: Dense, MoE, and 30 Billion Knobs [Extended] (00:42:53) * Chapter 8: Context, Attention, and the Honesty of Claude 4.8 (00:51:41) * Chapter 9: A Coding Agent Is a Skill, Not a Magic Wand (00:56:36) * Chapter 10: Semantics vs Mechanics (01:13:31) * Chapter 11: Rebuilding From Scratch: Specs and the Machine That Builds the Machine (01:16:42) * Chapter 12: Demo Day, Token Bragging, and Stealth Startups [Extended] (01:29:34) * Chapter 13: Are Startups Real Businesses? VC, Hype, and Not a Magical Tool [Extended] (01:38:40) * Chapter 14: Why AMP Wins: Pedigree and Economics (01:54:07) * Chapter 15: How to Actually Drive a Model: Plinko, Rocky Balboa, and Attention (02:08:41) * Epilogue (02:18:50) * Bonus: New York Sports (02:21:57) Host: Matthew Sanabria Co-Host: Kris Brandow Guest: Bill Kennedy Producer: Kris Brandow and Matthew Sanabria Beats: Breakmaster Cylinder Socials: * Website ( https://fallthrough.fm/ ) * Bluesky ( https://bsky.app/profile/fallthrough.fm ) * Threads ( https://www.threads.net/@fallthroughfm ) * X/Twitter ( https://x.com/fallthroughfm ) * LinkedIn ( https://linkedin.com/company/fallthrough ) * Instagram ( https://www.instagram.com/fallthroughfm/ ) * TikTok ( https://www.tiktok.com/@fallthroughfm ) * Changelog Zulip ( https://changelog.zulipchat.com/#narrow/channel/481259-fallthrough ) * Gophers Slack ( https://gophers.slack.com/archives/C085RJ99RFT )

    2 tim 29 min
  5. Dependencies All The Way Down

    29 maj • Endast för abonnenter

    Dependencies All The Way Down

    Another week, another Fallthrough! In this episode, Kris and Matthew discuss a personal realization about what AI actually unlocks, their workflow philosophies, local models, a recent hot take from Mitchell Hashimoto, and a thought experiment that would break the NPM ecosystem overnight. Like the previous episode (a pseudo part 1), this episode returns to one question: are you moving in a direction, or just moving fast? Kris argues AI has lifted his coding domain ceiling entirely, while Matthew brings some nuance to the "just submit to the LLM, you're an architect now" take. The duo then turns outward: frontier lab CEOs claiming all white-collar work is automated while posting 300 open roles, the strong case for running local models (free, fast, and available right now), and a GitHub supply chain wake-up call triggered by a malicious VSCode plugin installed by an employee. We've got supporter content, of course! This week that includes Matthew's Shopify in-store pickup problem and whether building your own cash register on Stripe is actually feasible, Kris going deep on typography after Claude critiqued its own publication designs as screaming AI, the pre-fill versus decode speed gap and what it means for how you write prompts, how the US federal budget actually works day to day and why simple answers are the wrong frame, and Stripe's two-business-day payout model versus merchant of record, plus Rhode Island's ongoing war against Matthew's chocolate shop. Not a supporter yet? Fix that today by heading over to https://fallthrough.fm/subscribe where you'll get not only extra content but also higher quality audio. Sign up today! If you prefer to watch this episode, you can view it on YouTube. No episode of the aftershow this week. We'll have more aftershow episodes soon! In the meantime, catch up on previous episodes at https://break.show. Thanks for tuning in and happy listening! Table of Contents: * Prologue (00:00:00) * Chapter 1: AI as a Capability Unlock (00:02:21) * Chapter 2: The Chocolate Shop Problem, or: Building vs. Understanding [Extended] (00:05:18) * Chapter 3: The Adam Jacob Take and Multitudes of AI Workflows (00:08:26) * Chapter 4: Personal Software is the Thing Now (00:21:37) * Chapter 5: Fear of Being Left Behind, Speed vs. Velocity (00:26:24) * Chapter 6: The Fog of Knowledge, Typography, and AI-Generated Mediocrity [Extended] (00:32:53) * Chapter 7: Tuning Your AI Tools, AGENTS.md, and the Out-of-Box Problem (00:37:50) * Chapter 8: The LLM as Kernel: Understanding Agents from the Inside Out [Extended] (00:41:08) * Chapter 9: No Uninformed Opinions: The Mess Underneath Everything [Extended] (00:45:42) * Chapter 10: Tech CEO Hype, Anthropic's Kool-Aid, and Self-Exemption (00:58:05) * Chapter 11: Owning Your Commerce Stack: E-Commerce, Stripe, and Sales Tax Hell [Extended] (01:04:30) * Chapter 12: Personal AI is the Future, Don't Sleep on Local Models (01:10:00) * Chapter 13: Cerebras IPO, Oxide Rack Speculation (01:13:29) * Chapter 14: GitHub Compromised via VSCode Plugin, Supply Chain Reckoning (01:16:00) * Chapter 15: Open Source Sustainability, Joy vs. Product, and Pay-Per-Pull (01:23:10) * Epilogue (01:29:01) Host: Kris Brandow Co-Host: Matthew Sanabria Producer: Kris Brandow Beats: Breakmaster Cylinder Socials: * Website ( https://fallthrough.fm/ ) * Bluesky ( https://bsky.app/profile/fallthrough.fm ) * Threads ( https://www.threads.net/@fallthroughfm ) * X/Twitter ( https://x.com/fallthroughfm ) * LinkedIn ( https://linkedin.com/company/fallthrough ) * Instagram ( https://www.instagram.com/fallthroughfm/ ) * TikTok ( https://www.tiktok.com/@fallthroughfm ) * Changelog Zulip ( https://changelog.zulipchat.com/#narrow/channel/481259-fallthrough ) * Gophers Slack ( https://gophers.slack.com/archives/C085RJ99RFT )

    1 tim 30 min
  6. Terminal Velocity

    21 maj • Endast för abonnenter

    Terminal Velocity

    Has AI eaten all of tech? Is 600 billion tokens too many use in a single month? On this week's episode Matt joins Kris to talk about some of the current news in the tech industry. From OpenClaw's maintainer burning through $1.3 million worth of tokens to why we need more epistemic markers, to the rather absurd $725 billion that big tech plans to spend on AI CapEx this year. And of course, there are layoffs coming as well. Support content? We've got a whole bunch of that! This week that includes a ZFS war story where a thousand-fold write amplification bug stalls every file write, the case for why LLMs hand you mediocre output by default, today's OAuth and GitHub security incidents traced back to a standards fight twenty years ago, a spicy take on who actually holds power inside big tech, and Matthew hand-writing an HTTP server in Rust just to fight off skill atrophy. Not a supporter yet? Fix that today by heading over to https://fallthrough.fm/subscribe where you'll get not only extra content but also higher quality audio. Sign up today! If you prefer to watch this episode, you can view it on YouTube. No episode of the aftershow this week. We'll have more aftershow episodes soon! In the meantime, catch up on previous episodes at https://break.show. Thanks for tuning in and happy listening! Table of Contents: * Prologue (00:00:00) * Chapter 1: AI Has Eaten All of Tech (00:01:11) * Chapter 2: Building the Machine That Builds Your Machine (00:06:30) * Chapter 3: You Still Have to Understand the Layer Below [Extended] (00:14:56) * Chapter 4: Say the Quiet Part: Put a Number on Your Predictions (00:22:47) * Chapter 5: LLMs Give You Mediocre by Default [Extended] (00:25:33) * Chapter 6: Speed Is Not Velocity (00:29:42) * Chapter 7: OAuth, GitHub, and the Bill for Skipped Homework [Extended] (00:37:00) * Chapter 8: The Bun Zig-to-Rust Port [Extended] (00:40:18) * Chapter 9: $725 Billion in CapEx and a Wave of Layoffs (00:48:52) * Chapter 10: Who Actually Has the Power [Extended] (00:53:05) * Chapter 11: Going Deeper in the Stack and Fighting Skill Atrophy [Extended] (01:02:49) * Epilogue (01:12:47) Host: Kris Brandow Co-Host: Matthew Sanabria Producer: Kris Brandow Beats: Breakmaster Cylinder Socials: * Website ( https://fallthrough.fm/ ) * Bluesky ( https://bsky.app/profile/fallthrough.fm ) * Threads ( https://www.threads.net/@fallthroughfm ) * X/Twitter ( https://x.com/fallthroughfm ) * LinkedIn ( https://linkedin.com/company/fallthrough ) * Instagram ( https://www.instagram.com/fallthroughfm/ ) * Changelog Zulip ( https://changelog.zulipchat.com/#narrow/channel/481259-fallthrough ) * Gophers Slack ( https://gophers.slack.com/archives/C085RJ99RFT )

    1 tim 14 min
  7. He Who Controls the Source

    15 maj • Endast för abonnenter

    He Who Controls the Source

    This week we've got Kris and Jamie! They open with the Shai-Hulud worm chewing through the npm supply chain and close on the messy economics of who actually pays for open source labor. And there's plenty of great stuff in between: GitHub's everything-platform creep, the case for LLMs as a way out of dependency hell, and the forge alternatives finally maturing into real options. We've got supporter content, of course! This week that includes an expansion on Kris's "pull requests as original sin" theory, the everything-platform rant that compares GitHub to Meta Business Suite, a monologue on money, knowledge gaps, and LLMs as a way out of open source debt. Not a supporter yet? Fix that today by heading over to https://fallthrough.fm/subscribe where you'll get not only extra content but also higher quality audio. Sign up today! If you prefer to watch this episode, you can view it on YouTube. No episode of the aftershow this week. We'll have more aftershow episodes soon! In the meantime, catch up on previous episodes at https://break.show. Thanks for tuning in and happy listening! Table of Contents: * Prologue (00:00:00) * Chapter 1: Cold Open, Hail in May [Extended] (00:00:59) * Chapter 2: The Shai-Hulud Worm and the GitHub Actions Attack Surface (00:02:24) * Chapter 3: Pull Requests as Original Sin [Extended] (00:21:02) * Chapter 4: GitHub Enterprise Cloud and the Forge Alternatives (00:26:57) * Chapter 5: The Everything Platform Problem [Extended] (00:35:14) * Chapter 6: GitLab Counterpoint, Kubernetes, Feature Flags, and Friction (00:44:55) * Chapter 7: Walled Gardens and the Business Model of Open Source [Extended] (00:50:03) * Chapter 8: AI Safety, Napalm Grandmas, and Agentic PRs (00:55:55) * Chapter 9: Kris's Theory: Money, Knowledge Gaps, and LLMs as a Way Out of Open Source Debt [Extended] (00:59:08) * Chapter 10: Jamie Pushes Back: Forks, Vulnerabilities, and OAPI CodeGen Stalled on OpenAPI 3.1 (01:09:38) * Chapter 11: Making Open Source a Surfaceable Cost (01:17:20) * Chapter 12: The Open Source Resistance (01:30:16) * Chapter 13: Capital One, Director Sign-off, and the Lawyer's Perspective [Extended] (01:39:32) * Chapter 14: Observability of Engineering: Hoyland's Agile Team and Tracking Without Fear [Extended] (01:47:27) * Chapter 15: The 25-Hour Work Week and Humans-as-Resources [Extended] (01:51:29) * Chapter 16: FSNotify Cleanup and the Composer Token Leak (01:55:00) * Epilogue (02:01:41) Host: Kris Brandow Co-Host: Jamie Tanna Producer: Kris Brandow and Jamie Tanna Beats: Breakmaster Cylinder Socials: * Website ( https://fallthrough.fm/ ) * Bluesky ( https://bsky.app/profile/fallthrough.fm ) * Threads ( https://www.threads.net/@fallthroughfm ) * X/Twitter ( https://x.com/fallthroughfm ) * LinkedIn ( https://linkedin.com/company/fallthrough ) * Instagram ( https://www.instagram.com/fallthroughfm/ ) * Changelog Zulip ( https://changelog.zulipchat.com/#narrow/channel/481259-fallthrough ) * Gophers Slack ( https://gophers.slack.com/archives/C085RJ99RFT )

    2 tim 4 min
  8. Forging Ahead

    6 maj • Endast för abonnenter

    Forging Ahead

    Steve is back to talk JJ (Jujutsu version control) and the related product, ChangeSet, that he works on at East River Source Control. Kris and Steve trace why the GitHub monoculture is finally cracking, what JJ does that Git can't, and Steve's hypothesis that AI agents are pushing companies toward monorepos. Then the pair discuss the Opus 4.7 regression debate, the shift from "always use the frontier model" to using LLMs as one tool among many, and a quick discussion of the Tim Cook to John Ternus handoff at Apple. We've got supporter content, of course! This week that includes Steve's broader thesis that it's easier to scale a big tool down than scale a small one up, why GitHub's pull request model warped how people use Git, auto-rebase and conflicts as first-class citizens in JJ, AI subsidies, and a Bun being ported to Rust. Not a supporter yet? Fix that today by heading over to https://fallthrough.fm/subscribe where you'll get not only extra content but also higher quality audio. Sign up today! If you prefer to watch this episode, you can view it on YouTube. Thanks for tuning in and happy listening! Show Notes: * JJ ( https://jj-vcs.dev/ ) Table of Contents: * Prologue (00:00:00) * Chapter 1: Episode 70, New Branding, and Catching Up (00:01:14) * Chapter 2: What is JJ (Jujutsu) and Why It Exists (00:03:43) * Chapter 3: Change IDs, Tangled, and the Federated Forge Wave (00:08:59) * Chapter 4: Healthy Diversity After the GitHub Monoculture (00:14:33) * Chapter 5: Scaling Big Tools Down: Bazel, Buck, Kubernetes, Symfony [Extended] (00:18:03) * Chapter 6: JJ Is Simpler AND More Powerful: No Index, No Stash (00:23:06) * Chapter 7: The JJ Workflow: Snapshots, Watchman, and JJ Undo (00:31:02) * Chapter 8: GitHub Warped Git: Why Patches and Gerrit Are Better [Extended] (00:37:10) * Chapter 9: Auto-Rebase and Conflicts as First-Class Citizens [Extended] (00:44:28) * Chapter 10: Getting Started with JJ: Tutorials and Workflows (00:51:48) * Chapter 11: East River Source Control and ChangeSet: A Forge for Mono-Repo Scale (01:01:47) * Chapter 12: Why AI Forces Companies into Monorepo Scaling Sooner (01:09:19) * Chapter 13: AI Subsidies and the Scaling Wall [Extended] (01:14:13) * Chapter 14: The Opus 4.7 Regression Debate, Goodhart's Law, and Custom Styles (01:18:54) * Chapter 15: LLMs as Tools, Not Solutions: Local Models, Gemini, and Custom Pipelines (01:28:22) * Chapter 16: Bun Rewriting in Rust: A Branch That Wasn't Supposed to Be News [Extended] (01:39:20) * Chapter 17: The Apple CEO Transition: Tim Cook to John Ternus (01:48:30) * Epilogue (01:57:16) Host: Kris Brandow Co-Host: Steve Klabnik Producer: Kris Brandow Beats: Breakmaster Cylinder Socials: * Website ( https://fallthrough.fm/ ) * Bluesky ( https://bsky.app/profile/fallthrough.fm ) * Threads ( https://www.threads.net/@fallthroughfm ) * X/Twitter ( https://x.com/fallthroughfm ) * LinkedIn ( https://linkedin.com/company/fallthrough ) * Instagram ( https://www.instagram.com/fallthroughfm/ ) * Changelog Zulip ( https://changelog.zulipchat.com/#narrow/channel/481259-fallthrough ) * Gophers Slack ( https://gophers.slack.com/archives/C085RJ99RFT )

    1 tim 59 min

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A deep and nuanced conversational podcast focused on technology, software, and computing.

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