Zero.js allows you to skip tons of boilerplate codes for using WebGL and to concentrate on writing the essential code to draw the origin.
There is only one geometry representing the origin, which has no dimension, no direction and no shape.
The APIs of zero.js are similar to three.js, which is the de-facto standard library in using WebGL. So you must feel familiar to using zero.js.
Would you like to move forward from the origin? Try one.js! I promise it takes you to the straight world without any hesitation or anxiety.