The irritation
With several NFL games on several screens, I was still writing down which broadcasts contained my fantasy starters. It was repetitive work right before kickoff.
ProductReleasedReleased utility
TuneInFF
A Sunday-morning fantasy-football utility that scans your starters and shows which real NFL games matter most across your leagues.
- Current state
- Released — Released utility
- Jack’s role
- Concept, API integration, Frontend engineering
- Find it in the workshop
- Broadcast & Products · Fantasy broadcast board
Built because…
The real build story.
What I built
I built a one-day utility that connects public Sleeper or ESPN league data, scans each lineup, maps starters to that week’s games, and returns a clean viewing table.
The hard part
Sleeper has a straightforward public API, while ESPN fantasy data required navigating an unofficial and considerably more complex source without bloating the user flow.
Under the casing
Proof, not decoration.
Build evidence02 items
- Sleeper and ESPN lineup data mapped to the weekly NFL schedule
- A working one-day utility with its tradeoffs documented in the original post
- Sleeper API
- ESPN fantasy data
- NFL schedule data
- Web application
Scope of work
What I owned.
- Concept
- API integration
- Frontend engineering
No victory-lap math
Outcome and lesson.
Where it landed
TuneInFF is a deliberately barebones released utility: no account, dashboard, or business model—just a quick answer for football Sunday.
What stayed
Not every useful build needs to become a company. The right scope was a button, a table, and a tool I would personally use each week.
Field notes
This project has a physical address.
In the playable workshop, TuneInFF lives in the Broadcast & Products as a fantasy broadcast board. You can inspect it without unlocking anything.