In many pbix files I reuse the same custom made M-functions. Today I can only do so by opening an existing pbix file which contains that code and then manually copy/paste that query in my new pbix....
(The suggestion from May 2023 about Git reuse is great and may help at a source code level, but this does not provide for linkage to an existing published function. Ideally want to link to function fred() in a dataflow such that if fred() is republished then we are using the new improved fred mk2. Much as a report links to a semantic model in the service and gets to reference its DAX measures, but for Power Query at the ETL stages.)
