I didn't get as much done this week because I was traveling but I did move into the meat of the project and made some good progress, especially with regards to starting the conversation on best practices for time-frequency transformations and estimation of source space activity https://github.com/mne-tools/mne-python/pull/10920. Specifically, we discussed linearly-constrained minimum variance (LCMV) beamformers compared to dynamic imaging of coherence sources (DICS) beamformers and how to unify a source estimation object. Once this object is complete, then the GUI development can begin to take place.