reactiveui / ReactiveUI

A composable, cross-platform MVVM framework for .NET inspired by functional reactive programming. It moves mutable state out of the user interface, keeps each feature's logic in one readable place, and makes applications easier to test. Supports WPF, WinForms, WinUI, .NET MAUI, Avalonia, Uno Platform, Blazor and Android.

LiveSplit / LiveSplit

A sleek, highly customizable timer for speedrunners.

Fody / MethodTimer

Injects some very basic method timing code.

lukaslangrock / ShutdownTimerClassic

Pick a time and let your computer shutdown itself.

maximilian467 / Developer-Island

A Dynamic Island for Windows: Claude Code & Codex usage, now playing, focus timer, calendar and system health in one native capsule. Local-first.