
Open-source customer engagement. Automate transactional and marketing messages across email, SMS, mobile push, WhatsApp, Slack, and more 📨

Dittofeed is an open-source, omni-channel customer engagement platform that enables teams to automate transactional and marketing messages across email, SMS, mobile push, WhatsApp, Slack, and more. It provides a developer-friendly alternative to platforms like OneSignal, Customer.io, and Segment Engage with full self-hosting capabilities.
Dittofeed is ideal for development teams, startups, and enterprises that need a self-hosted, open-source customer engagement platform without vendor lock-in. It caters to companies seeking cost-effective alternatives to commercial solutions while maintaining full control over their messaging infrastructure and customer data.

The open-source notification infrastructure. In-app Inbox component, E-mail, SMS, Push and Slack Integrations.

:hedgehog: PostHog is the leading platform for building self-driving products. Our developer tools – AI observability, analytics, session replay, flags, experiments, error tracking, logs, and more – capture all the context agents need to diagnose problems, uncover opportunities, and ship fixes. Steer it all from Slack, web, desktop, or the MCP.

🦔 PostHog is an all-in-one developer platform for building successful products. We offer product analytics, web analytics, session replay, error tracking, feature flags, experimentation, surveys, data warehouse, a CDP, and an AI product assistant to help debug your code, ship features faster, and keep all your usage and customer data in one stack.

Send push notifications to your phone or desktop using PUT/POST

MJML: the only framework that makes responsive-email easy

Open Source Newsletter Tool.

🙃 A delightful community-driven (with 2,500+ contributors) framework for managing your zsh configuration. Includes 300+ optional plugins (rails, git, macOS, hub, docker, homebrew, node, php, python, etc), 140+ themes to spice up your morning, and an auto-update tool that makes it easy to keep up with the latest updates from the community.

A feature-rich command-line audio/video downloader

An open-source AI agent that brings the power of Gemini directly into your terminal.

Hunt down social media accounts by username across social networks

:cherry_blossom: A command-line fuzzy finder

simple terminal UI for git commands

ripgrep recursively searches directories for a regex pattern while respecting your gitignore

CLI proxy that reduces LLM token consumption by 60-90% on common dev commands. Single Rust binary, zero dependencies

Collaborative cheatsheets for console commands 📚.

Give your AI agent eyes to see the entire internet. Read & search Twitter, Reddit, YouTube, GitHub, Bilibili, XiaoHongShu — one CLI, zero API fees.