Ross ROSS = Recommend OSS · open-source software intelligence for agents

b3ll/Motion

Animation engine for gesturally-driven user interfaces, animations, and interactions on iOS, macOS, and tvOS. observed · 2026-08-28

github.com/b3ll/Motion · Swift · BSD-2-Clause (permissive) observed · 2026-08-28

Health v2 · maintenance only

23/100

  • Activity 0
  • Release rhythm 8
  • Longevity 100
How is this computed?

round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.

  • gap_med: n/a
  • age_days: 2215
  • days_rel: n/a
  • days_push: 684
  • n_releases_24m: 0

Full methodology

Adoption not part of the score

1490 stars · 38 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Motion is a Swift animation engine for building gesturally-driven, physically-modeled, interruptible animations on iOS, macOS, and tvOS. It is powered by SIMD and integrates with gesture recognizers and SwiftUI to create fluid interactions.

Use cases

  • create spring animations for iOS interfaces
  • build interruptible decay animations driven by gestures
  • animate SwiftUI views with physically-modeled motion
  • rubberband scrolling values in custom UI
  • emit CAKeyframeAnimations from animation curves
  • replace Core Animation for interruptible gesture-driven interactions

When to choose

  • you need interruptible, physically-based animations that respond to gestures in real time
  • you want spring/decay animations on Apple platforms with SIMD performance
  • you're building fluid custom interactions in Swift or SwiftUI

When to avoid

  • you only need simple static transitions that Core Animation already handles
  • you're not developing for Apple platforms
  • you need cross-platform (Android/web) animation support

Facets

library · maturity active

animation ui-components graphics mobile-development frontend apple-ecosystem web-design cross-platform swiftui spring-animations gesture-driven-interfaces simd tvos core-animation ios macos swift

1 source

Member repositories

RepositoryRoleHealth v2
b3ll/Motionmain23

For agents

markdown · JSON · MCP: product_card(name="b3ll/Motion")

Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem