Rerankers worth testing lasagna (Python, 21 stars): Swap one RAG pipeline stage, hold the rest fixed, and measure whether the gain survives composition. https://github.com/dolev31/lasagna rag-reranking (Jupyter Notebook, 24 stars): An overview of popular reranking models and architectures for 2

Agent orchestration worth testing opencode-manager (TypeScript, 897 stars): A self-hosted command center for OpenCode. https://opencodemanager.app/ AIPass (Python, 288 stars): Persistent Agent Workspace - AI agents that remember, collaborate, and never start from zero.

Technical writing worth testing word-to-markdown-js (TypeScript, 268 stars): Convert Word (.docx) documents to clean Markdown: CLI, Node library, or in your browser at word2md.com https://github.com/benbalter/word-to-markdown-js OpenReview (35 stars): The most recent documentation of OpenReview

https://getopenhealth.org OpenHealth helps you research providers using public records. Procedure volume describes experience. It is separate from an outcome measure and is not a quality score.

https://opencal.link/ Block a few hours, a whole day, or a date range in OpenCal. Adjust or remove blocked time when plans change. Existing bookings stay booked.

Icon systems for product interfaces worth exploring Sevi (Shell, 111 stars): 🎨 A colorful design icon theme based on Reversal. https://github.com/TaylanTatli/Sevi coolicons (JavaScript, 484 stars): coolicons is a carefully designed collection of 440+ icons with a focus on simplicity

Makers building creative tools worth exploring js-draw maintained by Henry Heino (TypeScript, 298 stars): Draw pictures using a pen, touchscreen, or mouse! https://github.com/personalizedrefrigerator/js-draw FreePaint maintained by Spike (Java, 118 stars): A vector graphics drawing app for

AI refactoring worth testing TechWolf AI-First Toolkit (Python, 114 stars): Open-source Claude Code skills and Codex skills for AI-first work. https://github.com/techwolf-ai/ai-first-toolkit Ponytail (JavaScript, 169,982 stars): Makes your AI agent think like the laziest senior dev in the room.

AI code completion worth testing copilot-prompt (Python, 21 stars): My personal AI coding tool prompts (SKILL.md) https://github.com/jim60105/copilot-prompt twinny (TypeScript, 3,665 stars): Open-source AI coding assistant for VS Code. https://github.com/twinnydotdev/twinny Droid: Build faster

Typefaces for interfaces and code worth exploring plex (CSS, 11,702 stars): The package of IBM's typeface, IBM Plex. https://github.com/IBM/plex shieldfont (TypeScript, 652 stars): A typeface that protects written content by poisoning unauthorized AI training datasets.

Makers building playful browser experiences worth exploring WebGL-Fluid-Simulation maintained by Pavel Dobryakov (JavaScript, 16,770 stars): Play with fluids in your browser (works even on mobile) https://github.com/PavelDoGreat/WebGL-Fluid-Simulation Fluid Paint maintained by David Li

Contract testing worth testing Specflow (JavaScript, 25 stars): Specs that enforce themselves. https://github.com/Hulupeep/Specflow karate (Java, 8,992 stars): Test Automation Made Simple https://github.com/karatelabs/karate dynamodb-conformance (TypeScript, 23 stars): An independent DynamoDB

https://getopenhealth.org OpenHealth helps you research providers using public records. Read the source, reporting period and denominator with an outcome measure. The number needs its context.

https://opencal.link/ Blue means open. OpenCal puts your free time from all your calendars on one link, so the person booking sees the times you can actually make.

AI terminal assistants worth testing hax (C, 920 stars): A minimalist, terminal-native coding agent written in C. https://github.com/OleksandrChekhovskyi/hax claudectl (Rust, 201 stars): Hive mind for Claude Code - expand your consciousness with an agentic hive that learns from you once

Agent observability worth testing agentacct (Python, 766 stars): See what your coding agents did and what it cost. https://github.com/mikehasa/agentacct agent-sessions: Local-first macOS app to browse, search, analyze, and resume supported AI coding-agent session history across Codex, Claude Code,

Feature flags worth testing PostHog: :hedgehog: PostHog is the leading platform for building self-driving products. https://posthog.com/ open-feature (Rust, 51 stars): The official OpenFeature Rust SDK. https://github.com/open-feature/rust-sdk mixpanel: Mixpanel is the product intelligence

Makers building creative tools worth exploring js-draw maintained by Henry Heino (TypeScript, 298 stars): Draw pictures using a pen, touchscreen, or mouse! https://github.com/personalizedrefrigerator/js-draw miniPaint maintained by Vilius (JavaScript, 3,482 stars): online image editor

Icon systems for product interfaces worth exploring folderify (Rust, 1,945 stars): :file_folder: Generate pixel-perfect macOS folder icons in the native style. https://github.com/lgarron/folderify iconoir (TypeScript, 4,606 stars): Free, open source (MIT) SVG icon library: 1,383 icons (1,671 SVGs

Typefaces for interfaces and code worth exploring LxgwWenkaiGB (Shell, 1,541 stars): An open-source Simplified Chinese font derived from Klee One. https://github.com/lxgw/LxgwWenkaiGB gen-interface-jp (Python, 189 stars): Typeface harmonizing Inter and Noto Sans JP

https://getopenhealth.org OpenHealth helps you research providers using public records. Directory records, procedure experience and outcomes answer different questions. Keep each type separate.

https://opencal.link/ Google Calendar, company Teams, and iCloud can all count toward the same availability. Share one OpenCal link so people see when you are free, up to 90 days ahead.

AI knowledge bases worth testing pipeshub-ai (Python, 3,827 stars): The open-source context layer for AI agents. https://github.com/pipeshub-ai/pipeshub-ai stashbase (TypeScript, 982 stars): An open-source, local-first writing workspace where you can write with Claude Code and Codex, drawing on

CSS tooling worth testing vanillaTemplates (JavaScript, 21 stars): A tiny, HTML-first template engine for Vanilla JavaScript. https://github.com/Tehes/vanillaTemplates Trickle UI Kit (TypeScript, 45 stars): Pure-CSS text animations for React. https://tricklekit.dev/ sugarcube (TypeScript, 126

Agent workflow builders worth testing flow (Ruby, 22 stars): Aixle Flow - orchestrate coding agents through durable, inspectable workflows. https://flow.aixle.com/ open-vetta (TypeScript, 293 stars): Open-source, local-first AI agent for coding and real work.

https://getopenhealth.org OpenHealth helps you research providers using public records. Research a procedure and place. Review published procedure counts, outcome measures and the original sources.

Makers building playful browser experiences worth exploring WebGL-Fluid-Simulation maintained by Pavel Dobryakov (JavaScript, 16,762 stars): Play with fluids in your browser (works even on mobile) https://github.com/PavelDoGreat/WebGL-Fluid-Simulation webosu maintained by 111116 (JavaScript, 651

AI web scraping worth testing Agent-Reach (Python, 85,124 stars): Give your AI agent eyes to see the entire internet. https://github.com/Panniantong/Agent-Reach maxun (TypeScript, 17,876 stars): Turn any website into a structured API. https://maxun.dev/ Ultralytics (Python, 62,542 stars):

Containers worth testing WolfStack (Rust, 215 stars): Server management platform for the Wolf software suite https://wolfstack.org/ testcontainers-go (Go, 5,015 stars): Testcontainers for Go is a Go package that makes it simple to create and clean up container-based dependencies for automated

https://opencal.link/ Want new bookings on your calendar? Turn on calendar sync in Settings, under Booking. Choose Google or Outlook; that calendar adds the meeting and sends the invite.