Find the open-source solution that fits.

faynoSync gives desktop application teams control over their update infrastructure. Developers upload builds to S3-compatible storage, assign version metadata and stable, beta, or nightly channels through a dashboard or REST API, and let clients query a simple endpoint for update details and download URLs. It can feed Electron, Tauri, Squirrel, Velopack, or custom update flows, with either background installation or a user prompt determined by the client. Running the full service requires maintaining the API, MongoDB, Redis, object storage, migrations, and dashboard.

MacNewFile adds a Windows-style “new file” action to Finder and the macOS desktop. From the context menu, users can create text, Markdown, Microsoft Office, or Apple iWork documents, copy the current folder path, or open a terminal there. The standard build can be installed through Homebrew or a release download, while the configurable settings version requires building the app in Xcode. FinderSync no longer works inside iCloud directories, and the non-notarized installation may require additional macOS security approval.

SkillX combines a web marketplace, command-line client, and semantic-plus-keyword search for discovering agent skills. Users can browse more than 500 entries, compare ratings, reviews, usage statistics, and leaderboards, and save favorites. The current MVP includes authentication, API keys, filters, and pagination, while payments, MCP server mode, and a skill execution sandbox remain future work.

Agentic Engineering Framework packages requirements clarification, system design, code generation, testing, and review as reusable commands, skills, and specialist agents. Teams can add project knowledge and coding standards, while smaller fixes can invoke only the troubleshooting, implementation, or performance workflow they need. The files are installed into supported coding-agent directories such as Claude Code or Codex CLI.

These OKX Agent Skills give Claude Code, Cursor, Codex, and other compatible clients guided workflows for market data, order placement, positions and P&L, transfers, grid bots, DCA bots, and earn products through the okx CLI. Public market queries do not require authentication, while trading, account, portfolio, and earn operations require credentials configured through OAuth or an API key.

spring-boot-skills provides parallel skill sets for Spring Boot 3 and 4, covering architecture, REST APIs, JPA, migrations, caching, transactions, security, Spring AI, MCP, batch jobs, and testing. Developers copy the relevant skills into a Claude Code or Codex project so the agent reads version-specific patterns and team conventions before changing code. These are adaptable development instructions and templates rather than a library that becomes part of the application's runtime.

Peace Equalizer APO is a community-maintained graphical interface for Equalizer APO on Windows 10 and 11. It applies system-wide parametric equalization to games, music, video, and calls, with preamp and bass controls, headphone calibration, presets, VST support, and a real-time response graph. It is not an official release from the original Peace or Equalizer APO developers, and Equalizer APO must be installed first from a trusted source.

Idaesbasic keeps project-management data as local files, allowing to-do lists, kanban boards, and calendars to live beside the code or assets they describe. A user adds a project folder, creates the relevant task files within it, and can then back up or version those files with the rest of the project. The currently implemented tools are to-do lists, kanban, and calendar; whiteboards, chat, and several other modules remain plans. Windows and Linux have documented ways to run it, while macOS users must compile the application themselves.

Install the skill, authorize Baidu Netdisk, and ask a compatible agent to upload, download, search, transfer, or share files. Operations stay inside the app-specific storage directory, deletion is unavailable, and potentially destructive changes require confirmation. The project is still in beta and supports macOS, Linux, and Windows through WSL rather than native Windows.

make-no-mistakes packages two Cursor agent skills, a standard version and a stronger variant. Once copied or linked into the Cursor skills directory, they add behavioral instructions intended to keep model output coherent, accurate, and less prone to cascading logic errors. The project is a prompt-level steering layer rather than a standalone test runner or formal verification system, so it can encourage a more careful coding workflow but does not itself prove that output is error-free.

Readme.skill analyzes local usage records from Claude Code, Codex CLI, Kiro, Cursor, and other supported tools to create an AI-collaboration profile and a vertical SVG poster, with optional monthly or custom date-range reports. Processing is read-only and local by default, and project names, private repositories, and secret-like strings are anonymized; only the optional GitHub contribution lookup uses the network. Because conversation content may be analyzed to infer working patterns, users should still review the generated files before sharing them.

Rustman is a native desktop API client that uses a local Rust HTTP engine instead of a webview, avoiding browser CORS restrictions. It supports common authentication methods, environment variables, file uploads, WebSocket sessions, editable request and response bodies, and locally stored collections and history. The app needs no account and sends no telemetry, with builds for macOS, Windows, and Linux. Its pre- and post-request script interface exists, but the runner is still a work in progress.

@workersio/skills gives coding agents a risk-focused workflow for finding valuable test gaps, choosing an appropriate strategy, writing tests, generating replayable workloads, and reviewing existing cases. Its keep, redo, or remove gate asks whether a test would catch a failure that matters to users or operators rather than merely increasing coverage. It is packaged for Codex and Claude Code, while the Markdown-based workflow can be adapted to other skill-aware agents.

Claude Coach uses training history, event goals, injuries, travel, and equipment constraints to create plans for marathons, triathlons, and other endurance events. Users can enter fitness data manually or connect Strava, then edit, move, and complete workouts in a browser-based plan that stores data locally. Workouts can be exported to calendars, Zwift, Garmin, or TrainerRoad formats. It requires Claude.ai or Claude Code with network-enabled Skills, and Strava access requires user-created API credentials.

IRIS is a voice-first desktop assistant designed to execute actions across the operating system, applications, and connected Android devices. Its documented workflows include screen-region extraction, inline typing, web research, memory, and device control, with real-time voice interaction powered by Gemini Live. The public repository contains the desktop framework, interface, infrastructure, and selected integrations, while core orchestration and advanced execution components remain private under an open-core model.

finance-quant-skills is a collection of Agent Skills focused on financial research and quantitative workflows, especially China's A-share market. Users can install all or selected skills for market data access, natural-language screening, backtesting frameworks, strategy documentation, and research-report generation. The repository is not a standalone trading terminal, and requirements vary by skill: some sources are free, while others need cookies, API tokens, or locally installed QMT or TongdaXin software.

EGM Downloader is a local desktop application for Windows, macOS, and Linux that saves video or extracts audio from more than 1,000 supported sites without requiring terminal setup or an account. You can choose formats and available quality, preserve HDR, queue multiple URLs, process playlists, and import browser cookies locally when a site requires authentication. Downloads and conversions run on the user's machine with no telemetry. On Windows, the first launch downloads roughly 250 MB of runtime components; macOS and Linux packages bundle those dependencies.

Nori is a native local CLI that puts Claude, Codex, Gemini, and other ACP-compatible agents behind one interactive terminal UI. It can reuse existing authenticated sessions on the machine, and the /agent command switches providers, making it useful for comparing tools without changing the surrounding workflow.