As we mentioned before, Metal.js components are written in ES6, which means that we need a transpiling process before using it on a website.
If you're not a fan of gulp you can still use metal-cli, which offers almost the same tools, but through the command line.
Examples using other tools
As was mentioned before, using gulp-metal or metal-cli is not required. You can use your favorite build tool with Metal.js as well.
We've created a github repository full of different examples on how to work with Metal.js, and among other things it has a bunch of examples showing how to use different build tools. Check it out, and feel free to create an issue or send a pull request for other tools that it may be missing.