This is a Heroku buildpack for Julia apps.
JuliCon 2019 Presentation Video
Example project that uses this buildpack with Mux.jl.
In order to use this buildpack simply use a project using Julia 1.3 (containing Project.toml & Manifest.toml) and the buildpack will install all the project dependencies in build time.
Make sure you have a Procfile as follow
web: julia --project src/app.jl $PORT
You can also replace app.jl with your main app file name.