Sebastian Grebe
HomeExperienceProjectsBlogLabContact

Projects

What I'm
Building

From AI developer analytics to answer-engine visibility to a live video feed for street food — 3active projects, plus the ones I've wound down and written up.

FoodBang

Eat what's open right now

A vertical video feed for street cooks, home kitchens, and tiny spots that open only when they're actually cooking. Vendors post a live 15-second clip to open shop for the day; diners swipe today's drops sorted by distance, DM the chef, and eat in 15. No fees and no middleman — payment happens direct at pickup.

  • Video feed sorted by distance
  • Live-camera-only posts, valid 24 hours
  • Order by DM, 0% commission
Consumer AppMarketplaceFood
Visit FoodBang
foodbang.app
FoodBang — HomepageFoodBang — For cooks

AnswerRank

Get recommended by the AI engines

The AEO and AI-visibility platform for indie founders. Track how ChatGPT, Claude, Perplexity, and Gemini talk about your brand, then work a deterministic checklist of fixes so they recommend you instead of a competitor.

  • Tracks ChatGPT, Claude, Perplexity & Gemini
  • Deterministic AEO fix checklist
  • Source Influence Map & GSC gap
AEOAI VisibilitySaaS
Visit AnswerRank
answerrank.app
AnswerRank — HomepageAnswerRank — PricingAnswerRank — AEO Guide

Tandemu

An AI that remembers you

AI developer productivity platform with persistent memory. Tandemu learns your coding style, adapts to your personality, and keeps you engaged — while giving engineering leads DORA metrics, AI code attribution, and friction detection.

  • Persistent memory across sessions
  • DORA metrics & AI code attribution
  • Adapts to each developer's style
AIDeveloper ToolsAnalytics
Visit Tandemu
tandemu.dev
Tandemu — HomepageTandemu — PricingTandemu — Features

Archive

Wound down

Projects I've shut down. Closing them well matters as much as shipping them did — each one has a retrospective.

Substaff

Archived 2026

Hire AI employees that do real work

A platform for building autonomous AI agent teams — org charts, budgets, heartbeats, and governance for agents working toward business goals. Closed after limited activity and the standing cost of running agent infrastructure.

AI AgentsAutonomous Teams
Read the retrospective

Kreye

Archived 2026

Your thoughts, unleashed

An AI workspace on an infinite canvas that generated UI widgets from prompts — rich text, tables, charts, previews — turning scattered thoughts into structured insights. Open-sourced on the way out.

AIProductivity
Read the retrospective