android-scripts/gradle-cache-extractor/readme.md

Gradle Cache Extractor

Extracts dependencies from your Gradle cache so you can provide them on your self-hosted Maven repository.
Use -s and -d to specify the source (= Gradle cache) and target directory respectively.
You can optionally provide a dependency identifier with -a so only that dependency will be extracted. It's also possible to just specify a group id or artifact id, just leave out the parts you're not interested in.

Example Usage

./gce.clj -s "/home/schrofi/.gradle/caches/modules-2/files-2.1" -d "/home/schrofi/Projects/fallback-maven-repository/repository" -a "org.bitbucket.consentmanager:android-consentmanager:1.3.3"

./gce.clj -s "/home/schrofi/.gradle/caches/modules-2/files-2.1" -d "/home/schrofi/Projects/fallback-maven-repository/repository" -a "org.bitbucket.consentmanager:android-consentmanager"

Hosting a Maven Repository on Github

An easy (and free) way to host your Maven repository is to create a public Git repository on Github. You can then use this repository as target directory for the extractor script. It's not necessary to put packages into the root folder of your repository, you can also create a subfolder to keep the repository tidy and maybe add a readme in the root folder.

Once you've got your dependencies pushed to the repository you can specify it in your build.gradle:

allprojects {
    repositories {
        ...
        maven { 
            url 'https://github.com/USER/REPOSITORY/raw/BRANCH/SUBFOLDERS' 
        }
    }
}

Unfortunately I wasn't able to make this works with private repositories and a token. If you got that to work, I'd be happy to hear about it! It would make that solution even nicer.
Either way you can also just host it on any static webserver.