← Home

All the things C4C students have built.

Because all you need now is the idea (and a little insanity, some patience, and a whole lotta chutzpah).

Start here

Client Reporting Dashboard

Jordan Baum

A marketing agency owner built a client reporting dashboard and rolled it out to 5 real clients in her first week, then got confident enough to start building software to sell to other agencies.

Client Reporting Dashboard

temp photo

The Tail End

Justin Mather · itsjustmath.net/last-time

A mortality visualization that moved cohort-mates to tears.

The Tail End

You Are Enough

Max Pete · you-are-enough.pages.dev

A soul-built tool from Max to remind us all why we are, indeed, already enough.

You Are Enough
Everything else students built
  1. 01 Chief-of-Staff Email Triage System Richelle D.

    A system that scans and triages her inbox, blocks time on her calendar, and generates a weekly report for each client. Took her from around 100 emails a day down to about 3.

  2. 02 Wayback Investigative Tool Alicia Kenworthy

    A journalist used Claude Code to pull an archived blog through the Wayback Machine for an investigation she’d wanted to write for years, plus a personal life-organization HQ.

  3. 03 Do Not OD It + A Book for Her Daughter Lucy Barzun Donnelly

    A verbal countdown timer she built in a day and now uses every day. Then a life-story photo-book site for her dyslexic daughter, set in a huge high-contrast font built for how her brain actually reads.

  4. 04 The Heartbreak Hotline Kristie Dickinson

    A call-in line to vent about heartbreak, plus a family-trip websiteI've really become someone who can, like, build shit, and not just, like, think about it... I feel like I'm more willing to fail at stuff than I've ever been.

  5. 05 QuickBooks Killer - PDF Bank-Statement Importer Marjan Verstappen

    It pulls her PDF bank statements straight into the spreadsheet she already used, and she does not pay for QuickBooks anymoreI really just wanted to make something that would import my PDF bank statements into the spreadsheet we already use... And I did it. It works. It was awesome.

  6. 06 Chief Editorial Strategist Kal Elsebai

    A per-client editorial skill that generated a full podcast guest list for Daphne Oz in about 20 minutes, plus his first-ever websitestuff that used to take me, you know, days, if not weeks, I now get done in hours.

  7. 07 Morning Chief-of-Staff Lisa Hair Konishi

    A chief-of-staff tool for organizing Lisa's dayi run it every morning, and it kind of helps me take a breather and recognize my schedule/priorities before i dive into my laptop abyss.

  8. 08 FlowCrate + The 10,000-Photo Merge Nate Delgado

    A one-click Substack-to-Spotify playlist generator. Then a toolchain that merged ten thousand photos from Tanzania across mismatched camera timezones back into one true timelineMeeting everyone and feeling like we just started a little family.

  9. 09 YouTube Metrics Tool That Keeps You Sane Adil Zeshan

    A YouTube metrics tool designed to not make you freak out every time you look at itThe biggest change wasn't learning a particular skill. It was moving from 'Can I even do this?' to 'Which of these ideas should I build first?' What a much nicer problem to have.

  10. 10 Dementia Care Resource Hub Alison Taffel-Rabinowitz

    Six builds in 24 hours from zero terminal experience, three deployed by day 4, including a Dementia Care Resource Hub built live during a family SOS callI feel like I've been let out of jail.

  11. 11 Reach Out Bingo Jen Waldman

    A client's printed PDF rebuilt into a working mobile app in a day, plus a casting tool with a live admin dashboardI couldn't believe it went from a PDF a year ago to basically an app. And I did that all in a day.

  12. 12 Digital Oracle Deck Allegra Preuss

    The digital version of her analog oracle card deckliterally, when I was making it with a friend a few years ago, I was like, this will take $10,000 minimum and, like, 10 years to make, for sure.

  13. 13 FIRE Savings Dashboard Isha Chitnis

    A savings dashboard she built instead of impulse-buying an Oura RingThe urge to buy the ring disappeared into thin air. It took me less than 5 minutes.

  14. 14 50th Anniversary Party Site + Zephyr Evangeline Garreau

    A website she built for her parents' 50th anniversary party. Then Zephyr, a to-do app she spent an entire day on the completion animations for before building a single actual feature.

  15. 15 Personal Operating System Michael Dean

    Desktop app wrapping a personal publishing tool, typewriter, idea combiner, and time-locking focus system. All local.

  16. 16 Chief of Staff + Investment Research Chris James

    Automated follow-ups from call transcripts, AI stock research, and a puzzle game with swappable themes.

  17. 17 Team Portal + Ordering Site Ann Wehren

    Password-protected team research portal plus an ordering site with A/B testing and Zapier integration.

  18. 18 AI Travel Planner + Chief of Staff for Steady & True Rob Tourtelot

    Paste in a flight email or a hotel booking and it parses the date, time and address into a full itinerary, then pulls nearby restaurants and spots from the Foursquare API. It handles multi-night hotel stays, next-day landings and drive-time math for road trips. He built it for an Iceland trip. Then a context-aware chief of staff for his wellness platform, which folded Cursor, Typingmind agents, Perplexity and Claude into one system that keeps itself current as the business grows steadyandtrue.comEvery time we go on a trip, I'm the one who puts everything into spreadsheets. My family never looks at it.

  19. 19 Personal News Algorithm Nikita Petrov

    A daily newspaper of one. He describes the kind of stories he wants, important plus weird plus funny, and Claude picks them. Stories carry a shelf life, today's, this week's, this month's, and stale ones fall off on their own. Then he started drawing the illustrations by handI've never had a newspaper that I actually enjoyed reading. But I always liked the feeling of it. And so now I have this.

  20. 20 Client Growth Tracker + The Community Garden Carly Valancy

    A 6-month growth tracker she built for a branding client. The client submits her writing, logs how she feels about it, and tracks weekly progress, with an AI chat that suggests content directions from her own essays. Plus the Community Garden, an interactive home for her Reach Out Party communityWhat happens when a client actually follows a growth plan for 6 months? The data from that is the real product.

  21. 21 Chinese Book & Article Translator Tom Frank

    A script that OCRs Chinese PDFs, even scanned ones you cannot select text in, and translates them into natural English. Hours of manual translation became about five minutes, for a nonprofit collecting first-hand memories of Mao-era ChinaCompletely life changing. If I got nothing else out of this class and just got that, that alone would have been life changing.

  22. 22 Mindfulness Screen Break App Dennis Xiao

    macOS app that interrupts screen time with poems, koans, and grounding prompts. Multiple themes, ambient sounds generated with AI. Downloadable.

  23. 23 AIM-Inspired Personal Website Kristie Dickinson

    Personal brand site inspired by AOL Instant Messenger buddy lists and MySpace surveys. Writing, podcast, and AI-analyzed testimonials.

  24. 24 Health Tech Investor Deck + Healthcare Financial Model Rachel

    A startup fundraising deck with inline editing and PDF export, and the company raised funding during the cohort. Then a 3-year cost model for the business, revenue levers, P&L and capital planning, work that used to take a team of six.

  25. 25 Self-Discovery Analysis Tool Rochelle

    Fed years of client feedback into AI to surface hidden patterns in coaching style and strengths.

  26. 26 Mission Control Dashboard Noor

    Full command center GUI with multi-source task triage, skill inventory, time analytics, and automated prioritization. Pulls from notes, reminders, and email.

  27. 27 Music Taste Expander Mark Heggen

    Daily system that scores your listening habits for adventurousness. Expand your taste by passing a quiz, buying the opposite album, or confessing to a critic. Miss the deadline and it auto-donates to charity.

  28. 28 Personal CRM Ann Wehren

    Consolidated contacts from multiple platforms into one searchable database with export for email list segments.

  29. 29 Collaborative Meal Planner Ann Wehren

    Weekly meal planning with recipe database, fridge photo analysis, toddler safety flags, ADHD-optimized cooking steps, and shared shopping lists.

  30. 30 Daily Agenda Assistant + AI Chief-of-Staff Eri Zeitz

    A morning alarm that triggers a planning conversation with AI in the terminal. Simple, local, used every single day. Then an AI chief-of-staff built around her actual habits, a meal planner, and paid Substack subscribers tied to co-working accessI turned 70 this week, and it's very late in life to be doing entrepreneurial stuff, but I'm really... I'm just doing it.

And some things I built
  1. 01 Code for Creatives

    Cohort-based course teaching non-coders to build real software with Claude Code.

  2. 02 Drawbridge

    Claude draws flowcharts and diagrams in real-time on an Excalidraw canvas.

  3. 03 MFT Exam Trainer

    AI-powered adaptive learning app for the Marriage & Family Therapy licensing exam.

  4. 04 Goats of All Trades

    Web app to customize goat colors in real-time with SVG manipulation and PNG export.

  5. 05 Actually Good Writing

    Platform for discovering quality essays, with voting and full-text search.

  6. 06 Chief of Staff

    AI executive assistant that remembers context across sessions and tracks tasks.

  7. 07 Elsewhere

    Browser extension that adds a "Buy Elsewhere" button on Amazon showing alternative sellers.

  8. 08 Ship the Vibe

    A system for finishing vibe-coded projects, sold on Gumroad.

  9. 09 Idea Constellation

    Visual canvas where ideas appear as stars and connect into constellations.

  10. 10 Algorithmic Art

    Generative art using p5.js with seeded randomness, flow fields, and particle systems.

  11. 11 Brain Chemistry Sandbox

    Sandboxels, the open-source element simulation game, rebuilt for the brain. Add dopamine, serotonin, cortisol and watch them interact. Trigger road rage, the Sunday scaries, or a first date and see what the chemicals do to each other.

None of them
knew how either.

Cohort Four starts in September, in partnership with Sublime. No coding experience needed, obviously.

Apply for Cohort Four →