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Right after you modify or build locally the Mycelium SDK, you can test it right away with test net, main net or even with fork of a chain. To make this, you only need to run a CLI service that lives at the same repo that SDK. To get started, you need to follow next steps:
1

Install CLI dependencies

Go to the directory and install dependencies
cd packages/cli && pnpm install
2

Setup CLI environment variables

Provide all necessary CLI env variables in the .env file

CLI env variables

3

Start CLI

Start the CLI with provided environment variables
pnpm run start
Right after this the latest SDK version will be build and you can start using it via CLI
4

Start testing

Right after you start the CLI you will see all available commands that you can execute via CLIScreenshot2026 01 10at21 56 29 1