Not yet but there are plans for musing.io to be open source. In musing.io's "introduceyourself" post on steemit.com it states, 

"We plan to open-source the platform once there is clear developer interest. Open-source is the future of blockchain tech and is critical to true decentralization."

Source:

https://steemit.com/introduceyourself/@musing/introducing-musing-io-a-decentralized-question-and-answer-platform-on-steem

• musing
• technology
• blockchain
• opensource