Mattermost
Open-source team collaboration platform for secure messaging and workflows
Built with:
Typescript 
JavaScript 
SCSS 
GitHub 
NodeJS 
Docker 
Bash 
Github Actions 
OpenAPI 
Jest 
Express 
Postgres 
Eslint 
Playwright 
Rollup 
Prettier 
Zod 
React 
Testing Library 
JSX 
Webpack 
SWC 
Redis 
npm 
Cloudflare 
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