First, install the Command Line Tool, it will greatly simplify the process.
It is necessary to define what library used in your app can be replaced by a Dessert module. To do so, to methods exist :
recommend
command from the Dessert CLIThe recommend
command will run through your project's dependencies and check for each of them if an existing Dessert equivalent exists, then display a list of modules likely to interest you. You can then install these modules if you want, or pick the one you are interested in.
It's recommended to first check a module's documentation before installing it because some details on installation or usage may vary.
Then, install the Dessert module :
npm install <module_name>
Next, you have to replace in your code the occurrences where you use the replaced library (the one you are replacing for a Dessert module).
Eventually, remove it. For example:
npm remove <old_library>
If everything went well, your app just gained performance !