Neon reimagines PostgreSQL with a serverless architecture that decouples storage from compute, enabling instant copy-on-write database branching, autoscaling under load, and scale-to-zero when idle with sub-second cold starts. The lakebase architecture distributes durability across three layers: stateless compute nodes running unmodified PostgreSQL, safekeepers providing Paxos-based WAL quorum replication, and a pageserver that materializes pages on demand while offloading immutable history to S3-compatible object storage via MinIO or AWS S3. Copy-on-write branching creates full database clones as metadata operations without duplicating data, enabling developers to spin up isolated test environments, run parallel CI/CD pipelines, or recover from data loss through point-in-time restore across the configurable history window. Autoscaling dynamically adjusts CPU and memory based on live traffic without manual capacity planning, while scale-to-zero ensures costs drop to storage-only during idle periods. Neon maintains 100% PostgreSQL compatibility with broad extension support including PostGIS, pg_cron, pgvector, pg_stat_statements, and hundreds more, so existing applications connect with standard PostgreSQL drivers and ORMs unchanged. The API-first control plane enables programmatic provisioning, branch management, and multi-tenant fleet operations for platform builders and AI agent integrations. Acquired by Databricks in May 2025 and backed by over 22,800 GitHub stars. Deploys via Docker Compose with pageserver, safekeepers, storage broker, and compute nodes backed by MinIO object storage. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. Apache 2.0 licensed.

TREK coordinates group expeditions and vacations through a collaborative travel planning workspace that unifies daily itineraries, interactive route maps, shared expense budgets, and packing lists. Travel groups can build day-by-day timelines by dragging activities between dates, attaching transit bookings with flight numbers, and estimating driving intervals directly on OpenStreetMap and Mapbox canvases. Instant WebSocket synchronization mirrors itinerary edits, group chat messages, and decision poll votes across all traveling companions simultaneously without page refreshes. The integrated multi-currency expense manager tracks shared expenditures across lodging, dining, and transit categories, automatically calculating per-person debts and generating simplified debt settlement summaries. An interactive world atlas highlights visited nations and tracks lifetime travel statistics, enabling globe-trotters to manage personal bucket lists and review past journeys. Travelers can organize shared packing checklists from reusable equipment templates, monitor real-time weather forecasts powered by Open-Meteo, and export comprehensive travel schedules to printable PDF guides and calendar feeds. Role-based permission controls safeguard sensitive travel documents and boarding pass uploads while allowing guests to contribute notes and vote on activities. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. AGPL-3.0 licensed.

Airtable's spreadsheet-database model, self-hostable and open-source: that is Baserow. It presents data in a spreadsheet-style grid, but underneath each table is a real relational structure with typed fields, links between tables, filters, sorts, and multiple views (grid, gallery, form, kanban, calendar). Beyond the database core, it includes an application builder for composing pages and portals on your data, workflow automations, and dashboards. Everything is API-first: each table exposes a REST endpoint with token auth and webhooks, so it plugs directly into n8n, Zapier, or custom scripts. The stack is Django (Python) on the backend, Vue.js on the frontend, PostgreSQL for storage, with Redis for async tasks. Core features are MIT-licensed; premium features are a paid add-on. The self-hosted version has no row, storage, or API request limits - Airtable's per-base record caps and monthly API quotas simply don't exist here, and capacity is bounded only by your PostgreSQL database and disk. Existing Airtable bases, CSVs, and Excel files import directly with structure preserved, so migration doesn't start from a blank slate, and both the backend and frontend support plugins for custom field types and integrations without forking the core. For non-technical teammates the interface behaves like a spreadsheet; for engineers, the data model is the API.

ExcaliDash adds persistent storage, access control, version history, and real-time collaboration to Excalidraw, transforming ephemeral whiteboarding sessions into a managed drawing library your team can rely on. The Node.js/Express backend with React/TypeScript frontend deploys via Docker Compose on port 6767, using Prisma ORM on SQLite for all drawings, users, and metadata. WebSocket-powered collaboration lets multiple users edit the same canvas simultaneously with live cursor presence. Drawing snapshots preserve every revision with visual preview and one-click restore to any previous state. Three authentication modes handle different deployment needs: local email/password for personal use, hybrid mode mixing native credentials with OIDC for gradual enterprise adoption, and enforced OIDC-only for organizations requiring SSO through providers like Authentik or Keycloak. Scoped sharing controls determine whether drawings stay private, shared internally with team members, or accessible via external links without authentication. Collections organize drawings through drag-and-drop grouping, full-text search locates any diagram instantly, and exports use the non-proprietary .excalidraw format ensuring complete data portability. 1,350+ stars since November 2025. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. AGPL-3.0 licensed.

Real-time alerts from your own infrastructure to your phone, with no Firebase, Pushover, or third-party push service in the path: Gotify is a simple, self-hosted notification server written in Go. The model is deliberately minimal: senders push messages with a single HTTP POST to the REST API, receivers subscribe over a WebSocket stream, and a clean React web UI manages the pieces. Senders are namespaced as "applications," each with its own token, so your backup script, Uptime Kuma, CI pipeline, and cron jobs each get an identity, an icon, and independently revocable credentials - centralized alerting from many services with per-source management. Messages carry a title, body, and priority level that maps to notification importance on the client. The official Android app (on both F-Droid and Google Play, notable for working entirely without Google Play Services) shows push notifications for new messages; the web UI itself supports Web Push in the browser; and gotify/cli pushes messages from shell scripts with one command. A server-side plugin system adds custom behavior, and the whole thing runs as a single small binary with SQLite by default - near-zero resource footprint. Because dozens of tools (and Apprise) speak Gotify natively, it slots in as the notification hub for an entire homelab or ops stack.

With 10,100+ GitHub stars and 75 releases over a decade of continuous development, Healthchecks is the open-source cron job monitoring service that catches failures your other monitoring tools miss — the jobs that silently stop running, the backups that never completed, the nightly reports that disappeared without error. The dead man's switch architecture requires zero agent installation: your cron jobs, scripts, and services ping a unique URL via HTTP request or email, and Healthchecks alerts you only when a ping does not arrive within the configured Period and Grace Time window. Each check supports cron expression scheduling, optional start, success, and failure signals for measuring execution time, and HTTP body keyword filtering for intelligent alert routing. Twenty-five notification integrations cover every channel teams actually use: Slack, Discord, Microsoft Teams, PagerDuty, Opsgenie, Splunk On-Call, Telegram, Signal, WhatsApp, SMS, email, webhooks, GitHub Issues, Pushover, ntfy, Gotify, Matrix, Mattermost, Zulip, Pushbullet, PagerTree, Spike.sh, and Trello. The web dashboard provides a visual grid showing real-time status with color-coded badges and per-check integration toggles. Monthly, weekly, and daily email reports summarize uptime trends with checks sorted by downtime duration. Team management supports projects with member roles and read-only access. Prometheus metrics expose check health and grace state for Grafana dashboards. WebAuthn and TOTP two-factor authentication secure accounts. Deploy via Docker images available for amd64, arm/v7, and arm64 architectures. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. BSD 3-Clause licensed.

Built for self-hosting from the ground up, Kutt is a modern, MIT-licensed URL shortener: zero-configuration setup, no build step, and SQLite, PostgreSQL, or MySQL with optional Redis caching. Links carry real management features - custom slugs from a configurable alphabet (confusable characters like 0/O and l/1 omitted by default), password protection, descriptions, expiration times, and the ability to edit a destination URL without changing the short link already in circulation. Custom domains make branded short links first-class: add as many as you like and serve each under your own name instead of a third-party's. Private, per-link statistics track clicks, browsers, operating systems, and countries without logging visitor IPs or sensitive data. An admin page manages users and links instance-wide, and two environment flags (DISALLOW_REGISTRATION, DISALLOW_ANONYMOUS_LINKS) lock the instance down for private use; OpenID Connect login integrates with an existing identity provider. Automation runs through a documented REST API - create, list, delete, and pull stats - plus Chrome and Firefox extensions and ShareX compatibility for shortening from anywhere. Built with Node.js and React, deployed in one Docker container, it replaces Bitly with something you own: your domain, your analytics, and links that never die with a vendor.

CRMs, project trackers, inventory tools - NocoBase is an open-source no-code/low-code platform for building business systems like these. Its architecture is data-model driven: you define collections and relationships first, then compose any number of interface blocks (tables, forms, kanban, charts) on top of the same model, so data structure is never coupled to a particular view. The core is a microkernel where every feature is a plugin, WordPress-style; you enable official plugins, install marketplace ones, or write your own as npm packages with server and client parts. Data sources include the main PostgreSQL or MySQL database, external databases, and third-party APIs - so you can build admin panels over existing production data instead of migrating it. Built-in infrastructure covers role-based permissions down to collection, record, and field level, workflow automation with approval steps and scheduled triggers, and audit logs; a one-click switch flips between usage and configuration modes. Because custom features live in isolated plugins with a documented lifecycle, core upgrades do not overwrite your customizations, and swapping UIs never requires data migrations since interfaces sit on independent models. Written in TypeScript on Node.js, Koa, and React under the AGPL license, it is light enough for one person to run and extend - and where no-code SaaS platforms charge per seat and per app, a self-hosted instance runs unlimited applications for unlimited users at hosting cost alone.

CommaFeed delivers the Google Reader experience on your own infrastructure with modern performance characteristics. The Quarkus-based Java backend compiles to native code via GraalVM, achieving sub-second cold starts and 50MB memory footprint — a fraction of traditional JVM RSS readers. Four distinct layouts (title-only, expanded, magazine, and card) with light and dark themes adapt to any reading style, while comprehensive keyboard shortcuts cover navigation, marking, starring, and feed management without touching a mouse. The Fever-compatible API and newly added Google Reader API connect native iOS and Android apps (Reeder, Unread, FeedMe, ReadKit) directly to your instance. Per-feed push notifications through ntfy, Gotify, or Pushover alert you to new articles instantly. The visual query builder for automatic read-marking rules replaces raw expression syntax with an intuitive condition editor supporting title, content, author, and URL matching. OPML import and export enable seamless migration from any RSS service. Custom CSS and JavaScript injection let power users completely restyle the interface, while the browser extension adds one-click subscription from any website. Docker images for linux/amd64 and linux/arm64 with H2 embedded database require zero configuration to start. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. Apache-2.0 licensed.

Screen equities against dozens of technical indicators, backtest algorithmic trading strategies, and spot intraday market anomalies using Tick Stock Panel, a self-hosted quantitative analysis workbench. Traders can filter entire exchanges across technical indicators including moving averages, relative strength index, and Bollinger bands with near-instantaneous execution. The platform provides a full backtesting environment where users test customized entry and exit rules, account for simulated slippage and commission fees, and review streamed performance metrics. Dedicated monitoring modules track intraday volume spikes, price breakouts, and multi-day limit streaks with automated alert dispatching to messaging channels and voice announcements. Users can explore individual stock profiles featuring multi-dimensional technical breakdowns, financial balance sheets, and automated event post-mortems generated via integrated language models. Visual factor mining tools allow analysts to discover uncorrelated signals and assemble composite portfolio screens without external database overhead. An interactive dashboard aggregates sector rotations, hot concept heatmaps, and customizable watchlists into modular operational views. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. MIT licensed.

Encrypted, incremental, compressed backups on storage you already have - Amazon S3, Backblaze B2, Google Drive, Azure, OneDrive, Dropbox, MEGA, Storj, WebDAV, SFTP, FTP, SMB, or a plain local disk - is what the MIT-licensed Duplicati has quietly done for years. Its security model is Trust No One: every block is encrypted with AES-256 (or a local GPG instance) before leaving the machine, and the passphrase never travels, so the storage provider holds only ciphertext. The block-based storage engine gives the best of both backup worlds: after one initial full backup, only changed data blocks upload - modify a tiny part of a huge file and only that part transfers - yet every backup version restores like a full backup in a single operation, with no incremental chains to replay. Deduplication and compression keep remote storage growth slow even across years of versions. A web interface manages everything: the built-in scheduler keeps backups current automatically, flexible filters select folders, file types, or custom patterns, retention policies prune old versions, and an integrated updater flags new releases. On compatible object-lock backends, immutable (WORM) storage protects backup data from ransomware that reaches the credentials. Runs on Windows, macOS, and Linux, free even for commercial use.

The most widely deployed open-source BI tool, Metabase is a visualization and query layer that sits on top of your existing databases without ingesting or copying data. Non-technical users ask questions through a visual query builder with drill-through menus that answer follow-ups like "broken down by month" without writing a new query, while analysts use the native SQL editor with variables and templates for complex work. Questions assemble into interactive dashboards with filters, auto-refresh, fullscreen mode, and custom click behavior, and dashboard subscriptions email or Slack scheduled reports to stakeholders. It connects to 20+ data sources including PostgreSQL, MySQL, MongoDB, SQL Server, BigQuery, Snowflake, Redshift, and ClickHouse - always querying in place, so there is no second data store to secure, sync, or pay for, and results are always current. Models and metrics let a data team define official, reusable starting points so self-service stays consistent, collections with permissions organize content, and alerts fire when a metric crosses a threshold. The practical effect is cutting the ad-hoc query queue that lands on the data team, since non-technical staff can answer their own questions. Written in Clojure, licensed AGPL, and shipped as a single JAR or Docker image with an embedded application database - a working BI instance runs before most tools finish their installer - the open-source edition has no limits on users, dashboards, or connected databases, where commercial BI platforms price per viewer as well as per creator.

Eliminate indexing blind spots across fragmented company networks with Fess, a distributed enterprise search engine that crawls internal document repositories, corporate intranets, and cloud services to provide employees with instant, permission-aware file discovery. Organizations can schedule automated crawlers across web pages, network shares, databases, and third-party storage platforms to extract text and generate visual thumbnails from PDFs, spreadsheets, presentations, and compressed archives. Users can search indexed records using natural language queries, filtering results by file metadata, creation dates, categories, and geographic coordinates while viewing contextual snippets with highlighted keyword matches. Granular role-based permissions mirror directory security structures from Active Directory and LDAP so staff only see search results for documents they have explicit authorization to inspect. The browser-based administrative console lets operations teams define path mapping rules, manage virtual hosts, monitor active crawl jobs, inspect error logs, and configure scheduled re-indexing workflows without modifying server configuration files. Security teams can establish single sign-on across the organization using SAML or OpenID Connect authentication providers to secure administrative workflows and search portals. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. Apache 2.0 licensed.

Reaching 45,000 GitHub stars within seven months of launch, Multica is the fastest-growing open-source platform for managing AI coding agents as first-class teammates — assign an issue to Claude Code, Codex, Cursor, Copilot, Kimi, or any of 21 supported agent CLIs and it picks up the work, comments progress in real time via WebSocket, raises blockers, and hands the result back for human review before anything merges. The Go backend (Chi router, sqlc-generated type-safe queries, gorilla/websocket) connects to PostgreSQL 17 with pgvector for semantic search across workspace history, while the Next.js 16 App Router frontend delivers workspace dashboards showing per-agent token spend, execution time, daily cost charts, and runtime status across unlimited connected machines. Agent Skills provide reusable methods, reference material, and supporting files that compound across runs — a persistent knowledge layer that makes each subsequent task faster and more accurate. Squads let a leader agent select the right specialist for subtasks, creating multi-agent workflows without manual orchestration. Review gates ensure no AI-generated code ships to main without explicit human approval. Self-host via Docker Compose or Kubernetes with full Git integration across GitHub, GitLab, Gitea, and Forgejo including self-hosted instances. The CLI and REST API make every surface scriptable, and Autopilot automations trigger agent runs from events. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. Apache 2.0 licensed with additional conditions.

Friendica connects to more federation protocols than any other single platform: ActivityPub reaches Mastodon, Pleroma, Misskey, Lemmy, Pixelfed, and PeerTube; the Diaspora protocol bridges that network; and OStatus provides legacy compatibility. But protocol reach is just the foundation. Where most fediverse platforms stop at microblogging, Friendica offers long-form posts, photo albums, event calendars with RSVP, group discussions, and rich multimedia content. BlueSky and Tumblr connectors extend your reach into non-federated networks, while RSS import pulls content from any blog or news source into your timeline. Privacy controls let you scope each post to specific contacts, groups, or public visibility with per-post granularity rather than account-wide settings. Multiple themes customize the interface from Facebook-like layouts to minimal designs, and Fedilab provides native mobile access. Under the hood, the PHP application with MariaDB runs as either an Apache or FPM Docker image with Redis caching and background cron workers handling federation delivery, media processing, and notification dispatch. One of the oldest fediverse projects (1,650+ stars, 160+ contributors since 2010), Friendica has weathered every protocol evolution and platform migration the decentralized web has thrown at it, making it one of the most battle-tested social networking platforms available.

SuperPlane is an open-source engineering automation platform that turns routine backlog tickets into verified, review-ready pull requests while orchestrating complex multi-system workflows across your developer tools. Engineers use the visual infinite canvas to assemble event-driven pipelines with trigger nodes, conditional routing, loops, and human-in-the-loop approval gates. You can delegate pull request code reviews, automated QA testing, documentation generation, and release management to coding agents operating within strictly defined policy boundaries. Custom operational consoles let teams build live monitoring dashboards displaying key delivery metrics, active incident states, and execution histories from connected tools. Integrations connect natively with GitHub, GitLab, Datadog, PagerDuty, Slack, AWS, and leading AI models through webhook events and bi-directional actions. Every automation run maintains durable state persistence across process restarts, ensuring failed steps resume with full input payloads and debugging context intact. Developers can define reusable work orders, configure canvas memory for long-term state retention, and execute fleet commands over SSH or containerized runners. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. Apache 2.0 licensed.

Stop wrestling with dead scrapers and scattered reading folders by orchestrating your digital library through Bindery, an automated ebook and audiobook management platform that tracks favorite authors, monitors release schedules, coordinates indexer searches, and organizes media collections. Users can configure monitoring profiles to automatically track author bibliographies across OpenLibrary, Google Books, and Hardcover without fear of dead endpoints breaking their library. Dual-format tracking allows each book entry to hold separate digital ebook and multi-part audiobook files in distinct directory roots. The integrated search engine evaluates Newznab and Torznab indexers in parallel, scoring releases by edition tags, audio bitrate, narrator names, and release year to grab the highest quality versions. Download jobs pass seamlessly to background clients like SABnzbd, NZBGet, Transmission, or Deluge, moving completed files into custom library folder structures with hardlinks. An interactive release calendar highlights upcoming publications, while the manual metadata editor locks custom titles, genres, and series ordering against upstream refreshes. Readers can browse curated collections directly through the built-in OPDS feed on mobile reading apps or export organized media straight into Calibre and Audiobookshelf. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. MIT licensed.

Built as a direct rejection of the adtech model, Plausible is the best-known privacy-first web analytics tool - lightweight, cookie-free, and open-source. It sets no cookies and stores no personal data: unique visitors are counted via a hash of IP plus User-Agent that rotates every 24 hours and is never stored raw, so no consent banner is required and GDPR compliance is structural rather than contractual. The tracking script is under 1 KB - orders of magnitude lighter than GA - and the dashboard is a deliberate contrast to GA4's sprawl: one fast-loading page with visitors, sources, top pages, countries, devices, and UTM breakdowns, filterable by any dimension. Custom events and goals track signups and clicks, Google Search Console integration pulls in search queries, scheduled email reports keep stakeholders updated, and the Stats API (v2) plus CSV export feed data anywhere. This is the AGPL-licensed Community Edition, the same Elixir codebase that powers Plausible's cloud service, running as three containers: the web app, PostgreSQL for accounts, and ClickHouse for event storage - which means self-hosters get direct SQL access to raw analytics data the cloud version never exposes. Traffic data stays entirely on your server, with no visitor caps or per-pageview pricing.