# How-To Guides Task-oriented guides for common Biosimulant workflows. Each guide answers a specific question and walks you through the steps to accomplish it. **Info:** New to Biosimulant? Start with the [Library Quickstart](/overview/library-quickstart) for installation and your first simulation. Come back here when you know the basics and want to do something specific. ## Core Library - [Create a BioModule](/how-to/library/create-biomodule): Build a custom simulation component from scratch. - [Use a BioModule](/how-to/library/use-biomodule): Import, instantiate, and inspect an existing module. - [Use a BioWorld](/how-to/library/use-bioworld): Orchestrate modules, wire them, and run simulations. - [Write a model.yaml](/how-to/library/write-model-manifest): Define your module's manifest for packaging, metadata, and reuse. - [Write a lab.yaml](/how-to/library/write-lab-manifest): Define a composed simulation with multiple modules. - [Test a BioModule](/how-to/library/test-biomodule): Unit and integration testing patterns for modules. ## Composition & Running - [Compose Nested Labs](/how-to/library/compose-nested-labs): Build hierarchical simulations with child labs. - [Run Parameter Sweeps](/how-to/library/parameter-sweeps): Batch runs with varying parameters and result comparison. - [Wrap an External Simulator](/how-to/library/wrap-external-simulator): Turn SBML, NeuroML, or other simulators into BioModules. - [Add an ONNX Model](/how-to/library/add-onnx-model): Integrate machine learning models into simulations. ## Visualization & UI - [Serve a Local Lab](/how-to/library/serve-local-lab): Open the bundled local lab UI for a runnable lab. - [Custom Visualizations](/how-to/library/custom-visualizations): Implement timeseries, bar, table, and image visualizations. ## Publishing & Sharing - [Package & Publish](/how-to/library/package-and-publish): Build portable package files for validation, sharing, and local workflows. - [Create a Domain Pack](/how-to/library/create-domain-pack): Build a reusable collection of related BioModules. ## Desktop & CLI - [CLI](/references/cli): Install, auth, and script the canonical `biosimulant` CLI. - [CLI Command Reference](/references/cli/command-reference): Full raw command catalog. - [Build a Desktop Plugin](/how-to/desktop/build-desktop-plugin): Extend the desktop app with custom tools or agents.