The ConTeXt Excursion referenced from the garden and contained in the LMTX distribution say that they are from 2017-Oct-05. The version linked from http://www.pragma-ade.com/overview.htm says it is from 1999-May-27. The ConTeXt reference manual linked from http://www.pragma-ade.com/overview.htm is from 2001-Nov-12. The version referenced in the garden is from 2013-Sep-27. As of now, I did not find a version of the document in the distribution. Neither in ConTeXt LMTX, nor in ConTeXt Standalone. In the following days I will start to use the most recent version of the two documents known to me. In the LMTX distribution: musings.pdf is from 2020-Jan-17, whereas musings.tex and musings-names.tex are from 2020-Feb-18. luametatex.pdf in LMTX is from Feb-18. In Standalone it is from Jan-30.