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JavaScript library for building declarative, component-based user interfaces for web and native platforms.

frontend ui-components web-framework

Test your prompts, agents, and RAGs. Red teaming/pentesting/vulnerability scanning for AI. Compare performance of GPT, Claude, Gemini, DeepSeek, and more. Simple declarative configs with command line and CI/CD integration. Used by OpenAI and Anthropic.

hashicorp / terraform

Terraform core: a CLI and graph engine for declaring, planning, and applying infrastructure changes from versioned configuration files.

devops cloud automation

1bye / gpui-motion

Declarative, interruptible motion for native Rust applications on stock GPUI CE

sipyourdrink-ltd / bernstein

The open-source governance layer for AI agents: write the rules declaratively, Bernstein enforces them and produces the verifiable, replayable record. Free, Apache-2.0. https://bernstein.run

opentofu / opentofu

OpenTofu lets you declaratively manage your cloud infrastructure.

dagucloud / dagu

Self-hostable workflow orchestrator for teams whose main work isn't orchestration. Declarative YAML over your scripts, SSH commands, containers, etc; keep workflows separate from business logic. One binary, no database, runs on limited H/W resources. Alternative to Airflow / Cron / Job Scheduler.

solidjs / solid

A declarative, efficient, and flexible JavaScript library for building user interfaces.

argoproj / argo-cd

Declarative Continuous Deployment for Kubernetes

slint-ui / slint

Slint is an open-source declarative GUI toolkit to build native user interfaces for Rust, C++, JavaScript, or Python apps.

cachix / devenv

Fast, Declarative, Reproducible, and Composable Developer Environments using Nix

nix-darwin / nix-darwin

Nix modules for declaratively configuring macOS, built on Nixpkgs in the style of NixOS.

macos devops dotfiles

remix-run / react-router

Declarative routing for React

cachix / secretspec

A declarative interface for every secret provider.

nix-community / home-manager

Declarative management of user-specific packages and dotfiles on Linux and macOS using the Nix package manager.

dotfiles package-manager devops

nix-community / disko

Declaratively defines and applies disk partitioning, formatting, and mounting for NixOS using Nix configuration.

nix devops linux

urfave / cli

A declarative Go package for building command line tools with commands, flags, and shell completion.

cli developer-tools terminal

open-policy-agent / opa

Open Policy Agent (OPA) is an open source, general-purpose policy engine.

k4ditano / pleamar

A desktop shell language and runtime where animation does not depend on logic. Rust, wgpu, layer-shell, SDF — an alternative to Quickshell.

plotly / plotly.py

The interactive graphing library for Python :sparkles:

ariga / atlas

Declarative schema migrations with schema-as-code workflows

dolanmiu / docx

Easily generate and modify .docx files with JS/TS with a nice declarative API. Works for Node and on the Browser.

JetBrains / compose-multiplatform

Compose Multiplatform, a modern UI framework for Kotlin that makes building performant and beautiful user interfaces easy and enjoyable.

NixOS / nix

Nix, the purely functional package manager

pyinfra-dev / pyinfra

🔧 pyinfra turns Python code into shell commands and runs them on your servers. Execute ad-hoc commands and write declarative operations. Target SSH servers, local machine and Docker containers. Fast and scales from one server to thousands.

krakend / krakend-ce

KrakenD Community Edition: High-performance, stateless, declarative, API Gateway written in Go.

sqldef / sqldef

Idempotent schema management for MySQL, PostgreSQL, SQLite, and SQL Server

ocaml / dune

A build system for OCaml projects that reads declarative dune files and handles compilation, tooling config, and installation.

build-tools programming-language developer-tools

nvmd / nixos-raspberrypi

Nix flake for a fully declarative NixOS on Raspberry Pi

Ryoku-dev / Ryoku-on-NixOS

Ryoku on NixOS, an official declarative NixOS port of the Ryoku shell

wasp-lang / wasp

The batteries-included full-stack framework for the AI era. Develop JS/TS web apps (React, Node.js, and Prisma) using declarative code that abstracts away complex full-stack features like auth, background jobs, RPC, email sending, end-to-end type safety, single-command deployment, and more.

marko-js / marko

A declarative, HTML-based language that makes building web apps fun

aws-amplify / amplify-js

A declarative JavaScript library for application development using cloud services.

tidyverse / ggplot2

R package for declaratively building plots by mapping data variables to aesthetics and layering geoms, scales, and facets.

data-science visualization science

MontFerret / ferret

Declarative data automation language and Go runtime for structured extraction workflows.

vega / vega-lite

A concise grammar of interactive graphics, built on Vega.

helmfile / helmfile

Declaratively deploy your Kubernetes manifests, Kustomize configs, and Charts as Helm releases. Generate all-in-one manifests for use with ArgoCD.

kaitai-io / kaitai_struct

Kaitai Struct: declarative language to generate binary data parsers in C++ / C# / Go / Java / JavaScript / Lua / Nim / Perl / PHP / Python / Ruby / Rust

meltano / meltano

Meltano: the declarative code-first data integration engine that powers your wildest data and ML-powered product ideas. Say goodbye to writing, maintaining, and scaling your own API integrations.

ash-project / ash

Declarative Elixir framework for defining resources, actions, and policies that generate APIs, queries, and business logic.

backend web-framework developer-tools

mbrt / gmailctl

Declarative configuration for Gmail filters

aquaproj / aqua

Declarative CLI Version manager written in Go. Support Lazy Install, Registry, and continuous update with Renovate. CLI version is switched seamlessly

sharksforarms / deku

Declarative binary reading and writing: bit-level, symmetric, serialization/deserialization

pgplex / pgschema

Terraform-style, declarative Postgres schema migration. Agent friendly.

MoscaDotTo / Winapp2

Winapp2.ini: A database of declarative cleaning routines for Windows PC maintenance software

openrundev / openrun

Deployment platform for teams to deploy internal tools. Deploy web apps declaratively, on a single-node or on Kubernetes, with OIDC/SAML auth and RBAC.