TalentLayer is a 100% open-source project since the day we started - literally since the first lines of code were shipped. We are developer tooling; tools for teams to build new types of hiring platforms. Our open-source code has been used by two teams on mainnet, and over 13 teams currently in development. 

We have two main organizations on Github within the ecosystem: 

TalentLayer
Here are the core contracts and the graph that make up TalentLayer. These were shipped to mainnet in April, and therefore haven't iterated much since then. 
https://github.com/orgs/TalentLayer/repositories

TalentLayer Labs
Here we build open-source frontend and middleware tools that teams can use to ship platforms that leverage the TalentLayer core smart contracts. We're working to refactor many of these into an SDK. 
https://github.com/orgs/TalentLayer-Labs/repositories