assert-js | Javascript simple assertion library with no dependencies | Assertion library

I'm trying to extract a part of my Kotlin Gradle project to a separate repository. It's a Kotlin multiplatform project (https://github.com/krzema12/fsynth) and I want to extract whatever sits in 'plotassert' package.

I followed https://kotlinlang.org/docs/tutorials/multiplatform-library.html. To test it locally, I published the newly extracted project to the local Maven repository by executing publishToMavenLocal Gradle's task, and then put mavenLocal() in the main project's repositories section (here, as the first item). In core project's dependencies (here) I put