Free software1 sections · 2 min readBy Dezső Mező.mdFree softwareForyx
Foryx is a transparent feed ranker that shows exactly how a For-You algorithm decides what surfaces and why. The signature technique combines an affinity, interest, and engagement score scaled by an exponential recency decay, followed by a greedy diversity re-rank with an author-repeat penalty, and you can flip between ranked and chronological to watch posts rise and sink. It is a from-scratch, dependency-light build you can download and run locally.
01About the app
Recommender systems
What to take away
- A pure feed ranker: affinity × interest × engagement, scaled by an exponential recency decay, then a greedy diversity re-rank with an author-repeat penalty. Flip ranked vs chronological and watch posts rise and sink. 12 tests on the scoring, interleaving, and explanations.
- Download: Foryx (ZIP)
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