Waivers are the game
Every cut puts a full roster on waivers. I rebuilt claims for priority groups, backup drops, multiple runs, and the argument afterward.
Devin Entmacher · Product manager · Lifecycle marketer
Ex-Tinder PM. Lifecycle at Equip. Product builder after hours.
At Tinder, I built reasons to open the app right now. At Equip, I shape the patient lifecycle. After hours, I make things I want to exist, like Knife Fight.
Knife FightWeb + App Store · 2026
Featured work
Product · lifecycle · brand · growth
The lowest score gets cut. Everything else follows.
Knife Fight is last-team-standing fantasy football. No weekly matchups. Every team shares one scoreboard, the lowest score gets cut, and the fallen roster floods waivers.
Live on the web · Available on the App Store
Make the draft feel different
Everyone bids blind from one season-long wallet. No order. No waiting for your turn. The reveal is the moment.
Let product state run lifecycle
Product state triggers the message. Email keeps the record. SMS or push handles urgency. Every alert opens the exact screen.
More work
Draft companion · macOS
Pick 42
Local-first draft advice for MTG Arena: transparent pick rankings, 40-card builds, and evidence-first game reviews. Free to download.
See Pick 42 →Tinder · Product + lifecycleLive products for right now.
Vibes, Swipe Surge, targeted Boost campaigns, and the emails that made it into the wild.
See the Tinder work →Web design · brand systemsThree websites. One family.
A college, clinic, and foundation rebuilt around one shared system and three clear jobs.
See the websites →CompanyLeeloo Labs
The one-person company and App Store publisher behind Knife Fight.
Why it exists →