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returned=1 errno=0 peeraddr=140.82.121.6:443 state=error: unexpected eof while reading","robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":false,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["bitcoin","elements","liquid","simplicity","smart-contracts"],"created_at":"2026-03-26T03:00:48.759Z","updated_at":"2026-03-28T07:00:28.507Z","avatar_url":"https://github.com/BlockstreamResearch.png","language":"Rust","readme":"![](https://github.com/user-attachments/assets/c4661df7-6101-4c46-9376-dedaeef8056b)\n\n[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)\n[![Tests](https://github.com/BlockstreamResearch/smplx/actions/workflows/ci.yml/badge.svg?branch=master)](https://github.com/BlockstreamResearch/smplx/workflows/ci.yml)\n[![Community](https://img.shields.io/endpoint?color=neon\u0026logo=telegram\u0026label=Chat\u0026url=https%3A%2F%2Ftg.sumanjay.workers.dev%2Fsimplicity_community)](https://t.me/simplicity_community)\n\n# Smplx\n\n**A blazingly-fast, ux-first simplicity development framework.**\n\n## What\n\nSimplex is a Rust-based, comprehensive development framework for [Simplicity](https://github.com/BlockstreamResearch/SimplicityHL) smart contracts, aiming to provide a rich tooling suite for implementing, testing, and deploying smart contract on [Liquid](https://liquid.net/).\n\n- CLI for managing simplicity-based projects.\n- SDK with essential simplicity utilities.\n- Liquid regtest for local integration testing.\n- Extensive framework configuration.\n\n\u003e [!WARNING]\n\u003e The framework is at the extremely early stage of development, unforeseen breaking changes and critical bugs are expected.\n\n## Installation\n\n```bash\ncurl -L https://smplx.simplicity-lang.org | bash\nsimplexup\n```\n\nSee the [simplexup manual](simplexup/README.md) for more details.\n\n## Getting started\n\nAdd `smplx-std` dependency to cargo:\n\n```bash\ncargo add --dev smplx-std\n```\n\nOptionally, initialize a new project:\n\n```bash\nsimplex init\n```\n\n## Usage\n\nSimplex is a zero-config framework. However, it requires a `simplex.toml` file to exist in the project root. The default configuration is the following:\n\n```toml\n# Simplex config\n\n[build]\nsrc_dir = \"./simf\"\nsimf_files = [\"*.simf\"]\nout_dir = \"./src/artifacts\"\n\n[regtest]\nmnemonic = \"exist carry drive collect lend cereal occur much tiger just involve mean\"\nbitcoins = 10_000_000\n\n[test]\nmnemonic = \"exist carry drive collect lend cereal occur much tiger just involve mean\"\nbitcoins = 10_000_000\n\n[test.esplora]\nurl = \"\u003cesplora url\u003e\"\nnetwork = \"\u003cLiquid, LiquidTestnet, ElementsRegtest\u003e\"\n\n[test.rpc]\nurl = \"\u003crpc url\u003e\"\nusername = \"\u003crpc username\u003e\"\npassword = \"\u003crpc password\u003e\"\n```\n\nWhere:\n\n- `build` (`simplex build` config)\n  - `src_dir` - The simplicity contracts source directory.\n  - `simf_files` - A glob pattern incidating which contracts are in scope.\n  - `out_dir` - The output directory where contracts artifacts are generated.\n- `regtest` (`simplex regtest` config)\n  - `mnemonic` - The signer's mnemonic regtest will send initial funds to.\n  - `bitcoins` - Initial coins available to the signer\n- `test` (`simplex test` config)\n  - `esplora`\n    - `url` - Esplora API endpoint url\n    - `network` - Esplora network type (`Liquid`, `LiquidTestnet`, `ElementsRegtest`).\n  - `rpc`\n    - `url` - Elements RPC endpoint url\n    - `username` - Elements RPC username\n    - `password` - Elements RPC password\n  - `mnemonic` - The signer's mnemonic internal regtest will send initial funds to.\n  - `bitcoins` - Initial coins available to the signer\n\n### CLI\n\nSimplex CLI provides the following commands:\n\n- `simplex init` - Initializes a new Simplex project.\n- `simplex config` - Prints the current config.\n- `simplex build` - Generates simplicity artifacts.\n- `simplex regtest` - Spins up local Electrs + Elements nodes.\n- `simplex test` - Runs Simplex tests.\n- `simplex clean` - Cleans up generated artifacts.\n\nTo view the available options, run the help command:\n\n```bash\nsimplex -h\n```\n\n### Example\n\nCheck out the complete project examples in the `examples` directory to learn more.\n\n## Contributing\n\nWe are open to any mind-blowing ideas! Please take a look at our [contributing guidelines](CONTRIBUTING.md) to get involved.\n\n## Future work\n\n- [x] Complete `simplex init` and `simplex clean` tasks.\n- [ ] SDK support for confidential assets, taproot signer, and custom witness signatures.\n- [ ] Local regtest 10x speedup.\n- [ ] Regtest cheat codes.\n- [ ] Browser compatibility.\n- [ ] Simplicity dependencies management once the language adds [support for modules](https://github.com/BlockstreamResearch/SimplicityHL/issues/155).\n- [ ] Comprehensive documentation.\n\n## License\n\nThe framework is released under the MIT License.\n","funding_links":[],"categories":["Development Tools","Tools"],"sub_categories":["Libraries","Frameworks \u0026 SDKs"],"project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2FBlockstreamResearch%2Fsmplx","html_url":"https://awesome.ecosyste.ms/projects/github.com%2FBlockstreamResearch%2Fsmplx","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2FBlockstreamResearch%2Fsmplx/lists"}