Open-source alternatives to Example Voting App

Bull is a Node.js library for managing distributed jobs and message queues using Redis as the primary data store. It functions as a distributed task worker, job scheduler, and priority queue manager designed to handle asynchronous workloads across multiple processes. The project distinguishes itself by providing a persistent communication channel that decouples servers through the exchange of serializable data objects. It ensures distributed system reliability by detecting stalled tasks and recovering from process crashes to ensure every queued job is completed. The system covers a broad ran

BullMQ is a Redis-backed message queue library and background processor designed for distributed task queueing. It functions as a distributed queue manager and task scheduler, utilizing Redis to manage asynchronous job processing and persistence. The system distinguishes itself through its role as a job workflow orchestrator, enabling the definition of complex parent-child job dependencies and hierarchies for multi-step workflows. It provides sandboxed process execution to isolate heavy workloads and prevent event loop blocking, alongside distributed rate limiting to protect downstream servic

Gorush is a dedicated notification dispatch server used to send real-time alerts to iOS and Android mobile devices. It functions as a centralized infrastructure for hosting a notification API and managing the delivery of push messages through high-throughput queuing. The system supports both gRPC streams and HTTP endpoints to receive notification triggers and includes a command-line interface for triggering alerts without a running server process. It manages network traffic through proxy routing via HTTP or SOCKS5 and secures server communication using automated TLS certificate management. O

dockerlabs is a collection of educational labs and technical tutorials designed to teach the fundamentals of containerization and microservice architecture. It provides instructional material and hands-on exercises covering image optimization, security training, infrastructure setup, and cluster orchestration. The project features specific courses and guides focused on reducing image size through multi-stage builds, securing workloads via vulnerability scanning and encrypted networks, and deploying multi-node clusters with high availability using Swarm orchestration. The materials cover a br

This project is a containerized monitoring stack that integrates Prometheus and Grafana to collect and visualize system metrics and time-series data. It provides a complete infrastructure for gathering hardware and operating system performance data from host machines. The stack features an automated provisioning system that loads visualization dashboards and data sources from configuration files during startup. It includes a dedicated alerting pipeline that evaluates rule-based conditions and routes notifications to external platforms like Slack via webhooks. The system covers broad observab

OpenPanel is a self-hosted product analytics platform designed for tracking user behavior and visualizing product metrics on private infrastructure. It provides a comprehensive system for collecting events across web, mobile, and server environments while ensuring complete ownership of data. The platform distinguishes itself through a privacy-first approach, utilizing cookieless event tracking and regional data residency to simplify regulatory compliance. It integrates large language models via the Model Context Protocol, enabling users to query behavioral data and analyze trends using natura

This is a step-by-step tutorial that teaches Docker from the ground up, covering how to build images from Dockerfiles, run and manage containers, and connect them on user-defined networks. The guide walks through packaging applications into portable containers and using Docker Compose to define and orchestrate multi-service applications with a single YAML configuration. The curriculum extends into cloud deployment, explaining how to push images to registries like Docker Hub and deploy single-container applications to AWS Elastic Beanstalk as well as multi-container setups to AWS ECS. It also

Dry is a container lifecycle manager and cluster orchestrator designed to control groups of containers, services, and stacks across multiple nodes. It functions as a resource manager for inspecting and cleaning up images, persistent volumes, and network configurations, while providing a terminal-based dashboard for monitoring system events and resource usage. The project enables the coordination of distributed workloads through service-stack grouping and cluster orchestration. It provides a centralized control plane to synchronize the deployment and scaling of complex application architecture

IntentKit is an open-source platform for deploying and managing a collaborative team of AI agents that can work together to complete complex tasks. It provides a self-hosted agent orchestrator that coordinates multiple agents through a modular pipeline of entrypoints, orchestration, and storage, all running as containerized services using Docker Compose or Swarm for production-grade deployment. The platform distinguishes itself by offering a plugin-based system for extending agent capabilities without modifying the core codebase, along with built-in integrations for connecting agents to socia

This project is a comprehensive collection of tutorials and guided laboratories designed to teach containerization, networking, and security using Docker. It serves as a learning path for building portable images and executing isolated processes. The materials provide specific guides for managing container clusters and scaling services through Docker Swarm and overlay networks. It includes a security handbook for implementing image scanning and secret management, as well as laboratories dedicated to modernizing legacy applications by wrapping older software installers into containers. The co

This project is a Docker educational resource and a collection of practical examples designed for learning containerization technologies. It serves as a guide for understanding container fundamentals, including the creation and management of custom images and the use of registries. The repository provides specialized references for container security hardening, such as managing kernel privileges and implementing supply chain security. It also includes tutorials for multi-container orchestration and a DevOps guide focused on CI/CD automation and image optimization. The material covers a broad

This is an educational training course that teaches Docker, Compose, Swarm, and Kubernetes for building and deploying containers from development to production. The course covers end-to-end Docker-based workflows for building, testing, and deploying containers using Compose, Swarm, and Kubernetes in cloud-native DevOps pipelines. The material covers architecture patterns for containerized applications, including declarative service orchestration, network bridging, image layering, health monitoring, and persistent storage across Docker and Kubernetes environments. It addresses multi-container

OpenFaaS is a serverless function platform that provides a container-native framework for deploying and managing event-driven code. It functions as an abstraction layer over container orchestrators, allowing developers to package code into scalable functions that run across Kubernetes clusters or edge computing environments. The platform distinguishes itself through a developer-centric runtime that utilizes standardized language templates and automated build pipelines to simplify the creation of container images. It features a central API gateway that manages request routing, authentication,

Baserow is a self-hosted, no-code relational database platform built on PostgreSQL. It provides a spreadsheet-like interface for structuring and managing data without writing code, while exposing all database resources via a REST API to support headless architectures. The platform distinguishes itself by integrating large language models and embedding servers to power AI assistants and automated data generation. It further extends its utility as a no-code application builder, allowing users to create custom internal portals, dashboards, and business tools using visual logic and managed data.

Weblate is an open-source web-based translation management system that provides a collaborative platform for teams to review, suggest, and approve translations in real time. It functions as a continuous localization platform, automatically synchronizing translations with source code changes in version control repositories, and can be deployed either as a self-hosted server or through a managed cloud hosting service. The system integrates directly with Git hosting platforms like GitHub, GitLab, and Bitbucket, storing all translations in version control with individual translator attribution re

Colanode is a local-first collaboration platform designed for shared documents, chat, and databases. It provides a self-hosted suite for team collaboration and knowledge management, allowing users to maintain full control over their data and privacy on their own infrastructure. The platform is distinguished by a synchronization engine that uses WebSockets for real-time data broadcasting and a local-first approach to ensure work continues offline. It incorporates AI-powered retrieval through vector-based semantic search, enabling users to find information based on meaning across documents and

Serge is a self-hosted web chat interface for running large language models locally using the llama.cpp inference engine. It loads GGUF-format model files directly on your own machine, removing the need for internet connectivity or external API keys, and streams responses to the browser in real time via WebSocket connections. The project is packaged for containerized deployment using Docker and Docker Compose, with a Traefik reverse proxy that handles HTTP and WebSocket routing along with automatic TLS certificate management. Ready-made Kubernetes manifests are also provided, enabling deploym

Quarkus is a Kubernetes-native Java framework designed for building high-performance, memory-efficient applications. It utilizes ahead-of-time native compilation to transform Java code into standalone, optimized binaries that eliminate the need for a virtual machine, enabling rapid startup and reduced memory consumption. By performing code augmentation during the build phase, it shifts heavy processing tasks away from runtime, ensuring that applications are optimized for cloud-native environments. The framework distinguishes itself through a unified approach to reactive and imperative program

DjangoBlog is an open-source blog engine built with the Django web framework, designed as a full-featured content management system. It provides Markdown editing for articles and pages, supports social login through OAuth providers including Google, GitHub, Facebook, Weibo, and QQ, and offers full-text search powered by Elasticsearch or Whoosh with keyword highlighting in results. The blog distinguishes itself through several integrated capabilities. It includes a Redis-based page caching system that caches rendered responses and automatically invalidates them on content changes to reduce dat

Imaginary is a self-hosted HTTP server for image processing that applies transformations like resizing, cropping, rotating, and format conversion through URL parameters. It operates as a stateless request-response pipeline, processing images fetched from remote URLs or served from a local directory without requiring client-side dependencies. The server distinguishes itself through its security and access control capabilities, offering optional API key validation, HMAC-signed URL verification, and remote origin whitelisting to restrict which image sources are permitted. It also provides a heal

Excelize is a library for reading and writing spreadsheet files in the Office Open XML format. It provides a comprehensive suite of tools for programmatically creating, modifying, and analyzing workbooks, worksheets, and cell data, ensuring compatibility across various office software suites through structured XML serialization. The library distinguishes itself with a built-in formula calculation engine that evaluates complex mathematical and logical expressions directly against workbook data. It also features a memory-mapped streaming architecture, which allows for the efficient processing o

This project is a curated collection of deployment files and configurations for hosting a wide variety of open-source services on a home server. It primarily utilizes Docker and Docker Compose to automate the orchestration, lifecycle management, and deployment of containerized applications. The repository provides a comprehensive suite for self-hosted infrastructure, covering network management tools, media streaming, and home automation. It includes specialized configurations for securing internal services via reverse proxies, WireGuard VPN tunnels, and automated SSL/TLS certificate manageme

Resque is a Ruby library for enqueueing and processing asynchronous tasks using Redis as a data store. It functions as a distributed task processor and queue manager, allowing long-running work to be moved out of the main request cycle. The system executes background jobs in isolated child processes to prevent memory leaks and provides a web-based dashboard for monitoring queue depths, worker activity, and failed job statistics. Capability areas include distributed worker coordination via signals, error handling with job retry mechanisms, and priority-ordered queue management. It also suppor

Bee-queue is a Node.js background processing system that uses Redis for job queueing and persistence. It is designed to offload heavy tasks from the main execution thread to background workers to maintain application responsiveness. The project provides distributed job processing, allowing worker nodes to run across multiple processes to handle large volumes of tasks concurrently. It ensures reliable task execution through automatic retries and the recovery of stalled processes. Its capability surface covers asynchronous task scheduling for delayed jobs, concurrency control for worker nodes,

podman-compose is a command line tool and compose specification wrapper that translates YAML definitions into commands for the Podman container engine. It functions as a multi-container orchestrator that deploys application stacks without requiring a background daemon process. The tool enables rootless container management, allowing the execution of containerized applications and services without administrative privileges on the host. It translates high-level compose commands into individual shell calls to coordinate the deployment of multiple containers. The system manages container network

Docker Compose UI is a web-based management platform that provides a graphical dashboard for orchestrating multi-container application stacks. It serves as a centralized interface for managing container lifecycles, monitoring service health, and executing commands within running environments without requiring manual command line input. The platform distinguishes itself by integrating directly with version control systems to automate the deployment of infrastructure definitions. By cloning project files from remote repositories, it ensures consistent environment configurations across different

Sidekiq is a Ruby background processing framework and asynchronous task runner. It functions as a Redis-backed background job processor that offloads heavy or time-consuming work from web requests to separate worker processes to ensure the main application remains responsive. The system operates as a Redis task queue, storing pending jobs in Redis to be processed concurrently by multiple threads. It provides a framework for distributed task queueing and asynchronous job scheduling to coordinate work across multiple server instances. The project covers Ruby application scaling by executing ba