Welcome to Half Baked, the newsletter serving up startup ideas as historic as SpaceX finally filing its S-1 🚀
In today’s edition:
💡 Turning podcast listening into polished learning
🛠 How to build a daily research agent with Base44 Superagents
🔋 Turning $5 a day into a $108M fitness app + more
🔍 OpenAI proof, Anthropic x Colossus, YC's 2026 ideas + more
🍻 Productizing the very best part of breakfast
Let’s goooo 🚀
💸 Half Baked x T-Mobile for Business: We're giving one lucky reader a $500 grant to build their startup, courtesy of T-Mobile. How to enter:
Fill out this 30-second form to enter
Reply to this email with the startup idea you'd spend the $500 building
Good luck!
🎧 Podcast Learning App
Pod, quiz, repeat.
Source: Half Baked
The Problem: I’m a pretty big podcast guy. Andrew Huberman. Chris Williamson. Dwarkesh…they all have podcasts I try my best to listen to but almost never have the time. But one problem I have with podcasts is I can barely remember anything from them. Podcasts are kinda like the most accessible lecture series ever invented, but we treat them like background noise while we cook, drive, and fold laundry. We're walking around with millions of hours of audio knowledge in our ears and almost none of it in our heads. Here's the idea.
The Solution:
💡 The Idea: A mobile app that turns the podcasts you listen to into flashcards, quizzes, and practice problems so the knowledge actually sticks.
🛠️ Product:
When you open the app, you connect your podcast player (Spotify, Apple, Overcast) and pick the shows worth remembering - Dwarkesh, Acquired, Lex, Huberman, All-In. The app pulls your listening history and starts processing transcripts in the background.
After every episode, you get a personalized study deck - flashcards on key concepts, multiple choice on the data points, and short practice problems that force you to apply the ideas. A spaced repetition engine resurfaces cards over the following weeks so you actually retain what you heard.
Active Listening Mode is the killer feature - shake your phone mid-episode and the app instantly quizzes you on the last 5 minutes, turning a passive 2-hour walk into an active study session.
🧑💻 Prototyping: Google AI Studio demo | Remix this build
💼 Business Model: Freemium - free tier covers 3 episodes a month; Pro at $9.99/mo for unlimited episodes, spaced repetition, and Active Listening Mode.
⭐ End Goal: Get acquired by a podcast app, Audible or an edtech player like Duolingo or Brilliant wanting an audio-learning moat. Target exit 6-10x ARR.
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📈 You're Scaling Faster Than Your Carrier Can Keep Up
You hired 15 people this year. You'll hire 20 more next year. Every carrier quote comes with a new "promotional rate" that expires the second you sign. T-Mobile for Business does it differently.
Why founders switch:
5-Year Price Guarantee on talk, text, and 5G data
No annual contracts, scale lines up or down as you go
Exceptional 24/7/365 customer support when something breaks
America's best network, according to Ookla. US businesses only.
📰 How to Build a Daily Research Agent with Base44 Superagents
The Context: Base44 launched Superagents in March - autonomous AI agents you spin up in plain English, that run 24/7, plug into the apps you already use, and report back wherever you want. They're free on every plan. Here's how to build one that becomes your personal research analyst.
Step-by-step:
Open Base44 and describe your agent's job in detail - the topics to monitor, the sources to scan (specific X accounts, RSS feeds, subreddits, HN), and the format you want. "Monitor AI startup news from these 20 X accounts and rank by relevance to a B2B SaaS founder" beats "find me startup news" by a mile.
Connect the tools - X, Gmail, Slack, Notion. Base44 handles the auth and APIs in the background. Set permissions explicitly: read-only on your inbox, write access only to one Notion database, post to one private Slack channel.
Set the schedule and delivery format - "Every weekday at 7am, post a Slack message with the top 5 stories, ranked, with a one-sentence summary and source link." Run it for a week, tell it which items were useful, and it'll sharpen the digest over time.
👥 How to Get Your Entire Global Workforce Into One HR System
Most HR tools were built for a single-country workforce. If you're managing employees across multiple countries - with different contracts, benefits, and reporting requirements - you need something built for that reality from day one.
How Remote HRIS handles it:
All your people data, workflows, and documents in one place regardless of where employees are based
Automate onboarding, time off, and performance workflows without building them from scratch
Single login for your entire team - no more employees in three different systems
Effortless HR, accurate payroll. Together at last.
🔋 Founder Fuel
🤑 Money Shot: These guys turned $5 a day into a $108M fitness app. Here's how.
📈 Trends with Benefits: "Grindslop" is a term taking over Silicon Valley. This piece breaks down what it’s all about.
💬 Prompt Drop: This prompt makes Claude (brutally) honest. Use it the next time you need an unfiltered second opinion.
🆓 Founder Resource: OpenAI just dropped a PDF on how they use Codex internally. Epic.
💵 Founder Deal: Granola captures action summaries for every meeting. They're giving Half Baked readers 100% off their first month. Claim the deal.
🔍 Founder Finds
🧮 OpenAI just used an internal model to disprove a 78-year-old Erdős conjecture on unit distances. AI is now doing original mathematical research that beats human PhDs.
🧠 Hark just raised $700M at a $6B valuation for advanced personal AI. Yet another multi-billion dollar business from Brett Adcock.
🏗️ Anthropic will pay xAI $1.25B per month to rent Colossus 1 until 2029 - a deal that surfaced inside SpaceX's S-1 filing. Compute ain’t cheap…
📋 Y Combinator shared every startup idea they want built in 2026, a goldmine for anyone needing even more idea inspiration.
🤖 Demis Hassabis sat down for a wide-ranging conversation with Cleo Abram. The DeepMind CEO on AGI, science, and what comes next.
🍺 Drunk Business Idea: Cereal Milk
Tired of soggy cereal getting in the way of the best part of breakfast? Wish you could just chug the milk?
Introducing CerealMilk™, the bottled aftermath of your favorite cereal - Cap'n Crunch milk, Cocoa Puff milk, Lucky Charms milk - all the sugary post-cereal milk, none of the actual cereal slowing you down. Just twist the cap and drink your childhood.
CerealMilk™ - Snap, crackle, pour.
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👋 That’s All Folks!
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