Projects sharing features with Diagram As Code

PlantUML is a text-to-diagram generator that translates human-readable markup into structured graphical representations. It functions as a diagram-as-code tool, allowing users to create and maintain technical documentation, architectural models, and flowcharts by decoupling diagram content from visual layout. The project distinguishes itself through a comprehensive rendering pipeline that processes domain-specific markup into various output formats, including vector and raster graphics. It utilizes a graph-based layout engine to calculate spatial positioning, while a declarative styling layer

C4-PlantUML is a code-driven library that generates C4 model software architecture diagrams from PlantUML source text. It provides a set of reusable macros for creating system context, container, component, and deployment diagrams, enabling architects and developers to describe and communicate software architecture using the C4 model notation directly from diagram-as-code source files. The library distinguishes itself through hierarchical element nesting, which builds diagrams by nesting elements inside boundaries using PlantUML's rectangle and package constructs, and layout-direction control

Posting is a terminal-based HTTP request manager designed for developing, testing, and documenting API endpoints. It functions as a keyboard-driven interface that allows users to execute requests, manage collections, and inspect server responses directly within the command line environment. By storing request configurations as plain text files on the local filesystem, the tool ensures that API definitions remain compatible with standard version control systems. The project distinguishes itself by treating API collections as version-controlled assets, enabling users to migrate existing workflo

This project is a software engineering playbook providing a collection of standardized guidelines and processes for managing the full software development lifecycle and team operations. It serves as a high-level framework for organizing agile project management, API design, containerized development standards, and markdown documentation workflows. The framework establishes a system for language-agnostic API design to automate client library generation and documentation. It also defines standards for providing uniform contributor environments and toolchains through virtualized containers. The

Read the Docs is an automated documentation hosting platform that transforms source files from version control into published websites. It functions as a documentation pipeline that updates content automatically on every commit to keep technical manuals in sync with software releases. The platform provides specialized hosting for static site documentation and integrates as a CI/CD pipeline for documentation workflows. It utilizes a webhook-driven build system to trigger documentation rebuilds automatically by listening for push events from remote version control systems. The service supports

Publication-ready NN-architecture schematics.

Homebrew is a command-line package management tool designed to automate the installation, configuration, and maintenance of software on local development environments. It functions as a cross-platform software distributor, enabling users to install tools from pre-compiled binary archives or source code without requiring administrative privileges. By managing complex dependency trees and versioning, it ensures that software remains consistent and compatible across different system architectures. The project distinguishes itself through a declarative approach to system configuration, allowing u

RenderCV is a command-line utility designed to transform structured YAML data into professionally typeset documents. By separating content from presentation, it allows users to maintain version-controlled resumes that are automatically rendered into high-quality PDF, HTML, and Markdown formats. The system leverages a specialized typesetting engine to ensure precise layout control and professional-grade typography. The project distinguishes itself through a schema-driven approach that enforces strict data validation, ensuring that input files are error-free before processing. Users can customi

Django is a full-stack web framework designed for rapid backend development. It provides an integrated environment for building data-driven applications by combining an object-relational mapping layer for database management with a modular request-response pipeline for handling HTTP traffic. The framework emphasizes security and maintainability, offering a suite of tools to protect against common web vulnerabilities while decoupling site structure from implementation through a centralized URL routing system. A defining characteristic of the framework is its ability to generate production-read

This project provides a functional package manager and a reproducible build system designed to ensure identical build inputs always produce the same outputs. It serves as the foundation for a declarative Linux distribution where the entire system state is defined in a configuration file, enabling predictable deployments and full-system rollbacks. The system uses a deterministic functional language and a lazy-evaluation expression engine to manage software dependencies and isolate build environments. It distinguishes itself through a content-addressable store that allows multiple versions of s

Umlet is a desktop-based visual design environment for constructing software architecture diagrams and object-oriented models. It functions as a diagramming utility that allows users to create, manipulate, and organize visual elements through a combination of a graphical workspace and a text-driven interface. The application distinguishes itself by using a custom markup language to define and render diagram elements, enabling users to create specialized notations and custom shapes for unique architectural requirements. This approach allows for the serialization of diagram states into structur

nix-darwin is a declarative system configuration tool for macOS that uses the Nix package manager to define and manage the entire system state—including users, services, networking, and security—through a single reproducible Nix expression. It integrates Nix’s purely functional package model to install, update, and remove software, supporting multiple versions and atomic rollbacks. The tool composes system configuration from modular, typed, overridable options. It evaluates these Nix expressions to produce an immutable description of the desired state, then generates activation scripts that a

Nixpkgs is a comprehensive repository of declarative software definitions used to build and manage reproducible system environments. It functions as a framework for assembling operating system components and application dependencies into consistent, versioned, and verifiable software collections. By utilizing a functional derivation graph and a lazy evaluation model, the project ensures that software environments are defined as pure expressions, resulting in absolute reproducibility across different machines. The repository distinguishes itself through its ability to manage complex software l

systemd is a comprehensive system and service manager for Linux that orchestrates the entire operating system lifecycle. It functions as the primary init system, managing the transition from firmware to a fully initialized user space while providing a unified framework for service orchestration, hardware management, and resource control. The project distinguishes itself through its declarative, unit-based configuration model and dynamic dependency resolution, which allow for efficient, on-demand service activation and socket-based process management. It integrates deep system observability th

Apollo is a microservice configuration management system and dynamic configuration center. It serves as a centralized platform for storing, distributing, and syncing application settings across distributed environments to maintain consistency across various clusters. The system distinguishes itself through a dynamic configuration orchestrator that supports real-time updates to connected applications, eliminating the need for manual service restarts. It features a grayscale configuration deployment tool for rolling out changes to a small subset of service instances and a version control system

Noctalia Shell is a modular Wayland desktop shell that provides a user interface consisting of status bars, launchers, and notifications for Wayland compositors. It is built as a plugin-based desktop environment that utilizes declarative configuration for managing system defaults, wallpapers, and plugin installations. The project features a dynamic desktop theming engine that extracts color palettes from wallpapers to theme the shell and external applications. This is supported by an inter-process communication bridge that exposes endpoints, allowing external scripts and keybindings to trigge

Nix is a functional package manager, purely functional build system, and declarative configuration system. It serves as a reproducible environment manager designed to eliminate manual installation drift by defining software and operating system states through a configuration language. The project provides a means of managing software dependencies in isolated environments to prevent conflicts between different versions of the same tool. It enables the creation of consistent system configurations and development environments that replicate exactly across multiple machines. Its capabilities cov

UITableView-FDTemplateLayoutCell is a specialized table view cell component for iOS designed to automatically calculate and manage dynamic row heights based on content constraints. It provides a programmatic implementation for determining cell dimensions using auto layout to ensure content fits without requiring manual height overrides. The project utilizes a template-cell sizing mechanism that employs a hidden cell instance to calculate dimensions without triggering the actual table view rendering process. To maintain scrolling performance in long lists, it includes a caching system that sto

NixOS-WSL packages a complete NixOS system into a WSL-compatible tarball that Windows registers as a native distribution, enabling declarative configuration and lifecycle management for NixOS as a Windows Subsystem for Linux instance. The project boots NixOS with systemd as the init system inside WSL, providing full service management and dependency-based startup, while exposing the NixOS filesystem and executables to Windows through WSL's interop mechanism for bidirectional command execution. Users can override the default NixOS configuration declaratively to customise packages, services, an

Octelium is a zero-trust network access platform and identity-aware proxy designed to secure private HTTP, SSH, and SQL resources. It functions as a secure gateway that validates human and workload identities using OIDC, SAML, and FIDO2 passkeys before granting access to internal applications and SaaS APIs. The system is distinguished by its secretless access broker, which injects credentials—such as API keys, passwords, and AWS Sigv4 signatures—at the gateway level so users can access databases and cloud resources without managing secrets. It further specializes in AI gateway administration,

Register is a GitOps domain registrar and subdomain registration service that uses version-controlled configuration files to manage domain ownership and mappings. It functions as a DNS management system and record orchestrator, utilizing JSON-based declarative configurations to programmatically update A, CNAME, MX, and TXT records. The project distinguishes itself through a registration process where domain ownership and subdomain assignments are stored as the source of truth within Git repositories. It includes an automated SSL provisioning tool to configure web servers and security certific

Asterinas is a memory-safe operating system kernel designed to prevent data races and memory corruption. It functions as a Linux-ABI compatible kernel, enabling the execution of existing Linux binaries and container workloads while providing a declarative operating system distribution model. The project distinguishes itself by acting as a virtual machine container host and a confidential computing guest OS, allowing it to run within hardware-isolated Trusted Execution Environments such as Intel TDX. It implements a minimal trusted computing base by isolating unsafe low-level operations and se

Concourse is a container-based continuous integration and delivery platform that functions as a distributed build system. It operates as a declarative pipeline orchestrator, using a central controller and multiple worker nodes to execute concurrent tasks within isolated containers. The system distinguishes itself by executing every build step in a separate container to ensure environment consistency and by defining software delivery sequences through portable, versionable configuration files. It provides a web-based pipeline visualizer to display the real-time status and progress of automated

Drone is a container-based continuous integration and delivery platform, source control management system, and artifact registry. It functions as a hosted workspace provider for cloud-based developer environments and a system for hosting and versioning code repositories. The platform executes build and deployment pipelines within isolated containers, using declarative configurations to automate software delivery. It includes a centralized registry for managing and versioning compiled binaries and build outputs to ensure consistent deployments across environments. The system covers a broad ca

Apollo is a centralized configuration management system designed to manage environment-specific application settings for microservices and servers. It serves as a central store for properties, YAML, and JSON data, providing a platform for versioning, auditing, and the dynamic delivery of configurations. The system distinguishes itself through a dynamic delivery platform that supports real-time configuration pushes and grayscale releases. This allows updates to be rolled out to a small subset of service instances as a canary deployment to validate stability before a full fleet update. Governa

pyinfra is a Python-based infrastructure automation framework that turns Python code into shell commands for managing servers, Docker containers, and local machines. It operates as a declarative, idempotent deployment tool, applying desired system states by comparing target configurations against current states and making only the necessary changes. The framework provides a connector-based transport abstraction that unifies SSH, Docker, and local execution behind a common interface, with a parallel execution engine that manages concurrent operations across hosts. The tool distinguishes itself

Disko is a declarative configuration system for managing Linux disk partitioning, filesystem formatting, and LUKS encryption setup. It functions as a disk provisioner that allows users to define disk layouts and mount points through configuration files rather than manual commands. The project focuses on providing reproducible system installations by defining storage provisioning as code. It specifically automates the creation of partition tables, the setup of encrypted storage containers, and the configuration of filesystem layouts for NixOS systems. The toolset includes a command-line inter