Senne

Senne

@senne

Antwerp, Belgium

Building the future, one commit at a time.

46 Ideas· 5 Startups· Mar 2026
fmode.me/senne

About

Founder of Founder Mode 😎

Skills

🔧 Full-Stack🤖 AI/ML🎯 Product👥 Community💰 Finance☁️ SaaS

Favorite Founder

Elon Musk

Posts

Updates and lessons from @senne

Open feed
Senne
Senne@senne·
building What2Do.lol
Learn

When building digital products: have your agents create labs! Sometimes you think you have a good idea but it’s really not that great. Or- You just need some inspiration. For What2Do, I created many different labs to help me make better product decisions.

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Senne
Senne@senne·
on Founder Mode
Update

Sorry for the delay guys. Apple rejected App Store submission due to a bug I’ve been unable to recreate. Will spend more time on it this weekend Hopefully you can all enjoy the app soon!

Senne
Senne@senne·
building What2Do.lol
Update

Progress since Opus 5.5 dropped is insane. Just a week in, and this is already by far my most polished product yet. - Local design lab app to help me try various experiments: A/B lab, onboarding lab, monetization lab, widget studio… - AI auto-installs on my device with update log - Website launching today, https://what2do.lol/ - App frontend is nearly complete, commencing backend work later this week Accelerate!

Senne
Senne@senne·
building What2Do.lol
Update

Designing with Opus 5.5 is an absolute blast. It’s able to one-shot incredible design that doesn’t feel “AI”. Over the past few days I’ve been able to experiment with many ideas and it’s all starting to come together. Looking for feedback on a first mockup of the app. Let me know if you’re able to help!

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What2Do.lol logo
What2Do.lol

Idea → In development

Senne

Senne is building this

Has to ship by Nov 21, 2026 · 3 mo window

What it does · AI summary

What2Do.lol is the ultimate social discovery platform that eliminates decision fatigue by matching you with personalized local activities and instantly connecting you with friends to join the fun.

👥Social & Community
Senneby Senne
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What2Do.lol logo
What2Do.lol

In development → Sunset

Stopped building

Deadline reached — idea returned to pool · ran 3 mo

What it does

What2Do.lol is an app that helps you (1) Find fun activities to do. Could be kubbs when weather is good, could be videogames when it’s not, could be a location nearby to visit, an event, … (2) Have a social feed that allows inviting others to tag along

Someone is already building this.Senneby Senne
Senne
Senne@senne·
building WorldLink / Global Friends
Update

I keep forgetting about this because it’s so small, but Global Friends has been nearly ready to release for too long. As I’m finishing final reviews for @founder-mode ’s App Store release I will do the same for this app.

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Senne
Senne@senne·
on Founder Mode
Learn

Started using inngest.com - It’s an open-source project for managing events as durable functions. This helps ensure that events can be safely retried, that we don’t waste money on excess API calls/LLM invocations, and have excellent observability. Loving it so far!

Screenshot 2026-08-03 at 15.30.46.png
Senne
Senne@senne·
on What2Do.lol
Update

Realized that all apps I’m working on (Founder Mode, What2Do, and Vagabonder) will all depend heavily on data from the web that is diverse, fresh, and readily available.

1