How to deploy gutenberg on my own [closed]

Yes, you need to search a bit for the build steps. You want Getting Started with Code Contribution:

After installing Node, you can build Gutenberg by running the following from within the cloned repository:

npm ci
npm run build

Note: The install scripts require Python to be installed and in the path of the local system. This might be installed by default for your operating system, or require downloading and installing.

Once built, Gutenberg is ready to be used as a WordPress plugin!

That will build Gutenberg to a working state, but won’t filter down the set of files to the distribution .zip. For that you want the script bin/build-plugin-zip.sh