Show HN: I made a small runtime to visualise complex engineering flows

Simulacrum is a React-based code playground that enables users to write and execute TypeScript code directly in the browser without server requirements. Its primary aim is to assist users in creating systems through code, emphasizing design problem-solving over mere task automation. The platform features a visual simulation runtime that allows for the representation of time and complex scenarios, such as concurrent events. Data is treated as a first-class entity, enabling users to visualize changes throughout the execution process. Users can also craft "stories" to illustrate how the code should execute, offering various design perspectives. The integrated development environment (IDE) utilizes the Monaco editor and compiles TypeScript code via a virtual file system, transforming the code into state machines for execution simulation. To set up Simulacrum locally, users need to install dependencies with `yarn install` and start the Storybook app with `yarn storybook`, accessible at http://localhost:6006. Additional resources, including documentation and examples, are available on the official website and GitHub repository.

- Simulacrum allows execution of TypeScript code in the browser without a server.

- It features visual simulation for complex scenarios and data visualization.

- Users can write "stories" to describe code execution.

- The IDE uses the Monaco editor and compiles TypeScript into state machines.

- Local setup requires installing dependencies and starting the Storybook app.