In the past twenty years, the technical setup of the Music Encoding Initiative (MEI) data framework has been adjusted several times. Each of those transitions was motivated by the wish to improve the ways in which MEI could be integrated with other formats, to simplify the maintenance of MEI, and to encourage more people to actively contribute to the development of MEI. Some of those objectives are contradictory, and accordingly, there is no single right answer for all times about the best possible technical setup for MEI. The main purpose of this poster is to give a historical overview of the technical setups that MEI has gone through in the 20 or so years of its existence, and to illustrate the current workflows. Ideally, this empowers wider parts of the community to contribute to the continued development of both the MEI specification and documentation. Eventually, it will explain the steps necessary to set up a local working environment to participate in these developments.