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S-Tier Showcase

Open Source Hall of Fame

These elite repositories have earned an S-Tier C-Rankā„¢ score. Maintainers in the Hall of Fame merge external PRs rapidly, communicate constructively, and provide standard-setting onboarding for new contributors.

Updated: Sun, 30 Aug 2026 UTC (Daily Sync)

S-Tier Repositories (30)

Updated Daily
vellum-ai
vellum-assistant
vellum-ai/vellum-assistant
S•Elite
1.1kĀ·TypeScript

An AI Assistant that’s easy to setup, does your work 24/7, knows your preferences and gets better over time.

#agent#agentic-ai#ai-assistant
96%
Merge Rate
14h
Review Time
83%
1st-Timers
2 GFI
Scorecard
strelov1
freehire
strelov1/freehire
S•Elite
520Ā·Go

freehire — the open-source search engine for job seekers

#ats#careers#hiring
97%
Merge Rate
1d
Review Time
100%
1st-Timers
53 GFI
Scorecard
oxc-project
eslint-plugin-oxlint
oxc-project/eslint-plugin-oxlint
S•Elite
453Ā·TypeScript

Turn off all rules already supported by oxlint

100%
Merge Rate
<1h
Review Time
100%
1st-Timers
Tracked
Scorecard
Bforartists
Bforartists
Bforartists/Bforartists
S•Elite
791Ā·C++

Bforartists is a fork of the popular 3D software Blender, with the goal to improve the UI.

#bforartists#blender#fork
97%
Merge Rate
3h
Review Time
100%
1st-Timers
Tracked
Scorecard
line
line-bot-sdk-ruby
line/line-bot-sdk-ruby
S•Elite
493Ā·Ruby

LINE Messaging API SDK for Ruby

#bot#line#linebot
96%
Merge Rate
<1h
Review Time
75%
1st-Timers
Tracked
Scorecard
tennaproject
tenna-editor
tennaproject/tenna-editor
S•Elite
92Ā·TypeScript

An unofficial DELTARUNEā„¢ Save Editor

93%
Merge Rate
4h
Review Time
100%
1st-Timers
4 GFI
Scorecard
Xoshbin
asyar
Xoshbin/asyar
S•Elite
456Ā·Rust

The power of Raycast. The speed of Alfred. Privacy by design.

#launcher#local-first#privacy-first
96%
Merge Rate
22h
Review Time
83%
1st-Timers
1 GFI
Scorecard
neomjs
neo
neomjs/neo
S•Elite
3.3kĀ·JavaScript

Neo.mjs is a self-evolving software organism: a professional end-to-end AI engineering team whose cross-model swarm inhabits live apps via Neural Link, Active Hybrid GraphRAG, DreamService, and self-healing loops.

#agent-memory#ai-agent#ai-memory
93%
Merge Rate
11h
Review Time
89%
1st-Timers
4 GFI
Scorecard
pymc-labs
pathmc
pymc-labs/pathmc
S•Elite
108Ā·Python

Structural causal models with Bayesian estimation and interventional simulation via a concise DSL.

#bayesian-inference#causal-inference
94%
Merge Rate
1h
Review Time
83%
1st-Timers
2 GFI
Scorecard
google
xrblocks
google/xrblocks
S•Elite
465Ā·TypeScript

XR Blocks is a lightweight WebXR + AI library for rapidly prototyping advanced AI + XR experiences.

#androidxr#gemini#gestures
93%
Merge Rate
4h
Review Time
85%
1st-Timers
1 GFI
Scorecard
tsouth89
toolport
tsouth89/toolport
S•Elite
186Ā·Rust

Local-first MCP gateway. One port for every tool and every AI client: lazy discovery (~90% token savings), tool integrity + quarantine, secrets in the OS keychain.

#ai#claude#cursor
94%
Merge Rate
15h
Review Time
88%
1st-Timers
5 GFI
Scorecard
microsoft
AL-Go-PTE
microsoft/AL-Go-PTE
S•Elite
172Ā·POPowerShell

Template for Business Central Per Tenant Extensions projects. Click the link below to create a new repository.

97%
Merge Rate
<1h
Review Time
100%
1st-Timers
Tracked
Scorecard
kieker-monitoring
kieker
kieker-monitoring/kieker
S•Elite
114Ā·Java

Kieker is an observability framework, that consists of an monitoring and tracing agent, and compatible analysis tools

#apm#distributed-tracing#dynamic-analysis
79%
Merge Rate
18h
Review Time
100%
1st-Timers
Tracked
Scorecard
microsoft
XBOX-Godot-Sample
microsoft/XBOX-Godot-Sample
S•Elite
227Ā·C++

An example implementation binding the Microsoft GDK, XBOX Services, PlayFab and GameInput to Godot 4. Provides GDExtension and Game references for shipping on XBOX on PC.

#game-development#gamedev#gameinput
94%
Merge Rate
<1h
Review Time
80%
1st-Timers
2 GFI
Scorecard
amiantos
lurker
amiantos/lurker
S•Elite
77Ā·TypeScript

Lurker is a beautiful self-hosted IRC client with a retro aesthetic and modern conveniences.

#express#irc#irc-client
96%
Merge Rate
19h
Review Time
100%
1st-Timers
5 GFI
Scorecard
woylie
doggo
woylie/doggo
S•Elite
399Ā·Elixir

Headless UI components for Phoenix

#component-library#headless-ui#phoenix
100%
Merge Rate
<1h
Review Time
100%
1st-Timers
Tracked
Scorecard
AvaProtocol
EigenLayer-AVS
AvaProtocol/EigenLayer-AVS
S•Elite
82Ā·Go

AvaProtocol Ethereum Automation Build on EigenLayer

#eigenlayer#eigenlayer-avs#eigenlayer-operators
97%
Merge Rate
11h
Review Time
100%
1st-Timers
2 GFI
Scorecard
jxmorris12
language_tool_python
jxmorris12/language_tool_python
S•Elite
529Ā·Python

a free, non-AI python grammar checker šŸ“āœ…

#grammar#grammar-checker#grammar-parser
100%
Merge Rate
<1h
Review Time
100%
1st-Timers
Tracked
Scorecard
transparency-dev
tessera
transparency-dev/tessera
S•Elite
230Ā·Go

Go library for building tile-based transparency logs (tlogs)

96%
Merge Rate
4h
Review Time
80%
1st-Timers
Tracked
Scorecard
bitfireAT
dav4jvm
bitfireAT/dav4jvm
S•Elite
103Ā·Kotlin

WebDAV (including CalDAV, CardDAV) library for the Java virtual machine (Java/Kotlin)

#caldav#carddav#webdav
97%
Merge Rate
2h
Review Time
100%
1st-Timers
Tracked
Scorecard
ondreu
Hearth
ondreu/Hearth
S•Elite
99Ā·TypeScript

Another homepage for Obsidian.

93%
Merge Rate
15h
Review Time
100%
1st-Timers
Tracked
Scorecard
Cataclysm-TLG
Cataclysm-TLG
Cataclysm-TLG/Cataclysm-TLG
S•Elite
391Ā·C++

Cataclysm: The Last Generation

96%
Merge Rate
20h
Review Time
93%
1st-Timers
Tracked
Scorecard
renovatebot
helm-charts
renovatebot/helm-charts
S•Elite
139Ā·MUMustache

No repository description available.

#chart#helm#helm-chart
100%
Merge Rate
<1h
Review Time
100%
1st-Timers
Tracked
Scorecard
lovasoa
dezoomify
lovasoa/dezoomify
S•Elite
813Ā·JavaScript

Dezoomify is a web application to download zoomable images from museum websites, image galleries, and map viewers. Many different zoomable image technologies are supported.

#dezoomify#downloader#google-art
96%
Merge Rate
1h
Review Time
100%
1st-Timers
Tracked
Scorecard
kmolan
multicalc-rust
kmolan/multicalc-rust
S•Elite
182Ā·Rust

Scientific computing that fits on a microcontroller. Estimation, control, kinematics, Lie groups, calculus, autodiff and linear algebra in stable no_std Rust with no heap, no panics and no unsafe. Run the same code on your laptop and your Cortex-M0.

#autodiff#automatic-differentiation#cortex-m
88%
Merge Rate
3h
Review Time
77%
1st-Timers
43 GFI
Scorecard
shapeshed
aerial
shapeshed/aerial
S•Elite
119Ā·Kotlin

Just radio for Android.

#android#radio#streaming
91%
Merge Rate
12h
Review Time
100%
1st-Timers
Tracked
Scorecard
IgorWarzocha
howaboua-pi-stuff
IgorWarzocha/howaboua-pi-stuff
S•Elite
340Ā·TypeScript

A monorepo of extensions and skills by yours truly.

93%
Merge Rate
<1h
Review Time
100%
1st-Timers
1 GFI
Scorecard
zszz3
AgentRecall
zszz3/AgentRecall
S•Elite
759Ā·TypeScript

No repository description available.

93%
Merge Rate
12h
Review Time
84%
1st-Timers
Tracked
Scorecard
Awesome-Embedded-Learning-Studio
Tutorial_AwesomeModernCPP
Awesome-Embedded-Learning-Studio/Tutorial_AwesomeModernCPP
S•Elite
225Ā·C++

A systematic modern C++ tutorial covering C++11-C++23, STL, concurrency, performance optimization, software engineering, embedded systems, networking, GUI, and real-world project practices.

#concurrency#cpp#cpp-tutorial
94%
Merge Rate
1d
Review Time
100%
1st-Timers
2 GFI
Scorecard
MicroPyramid
Django-CRM
MicroPyramid/Django-CRM
S•Elite
2.4kĀ·Python

Open Source CRM for Startups — Django REST + SvelteKit Ā· Self-hosted Ā· Multi-tenant Ā· Free forever

#cpq#crm#django
98%
Merge Rate
<1h
Review Time
100%
1st-Timers
Tracked
Scorecard