Dear Colleagues,
The Sanskrit Library has developed two Keyman keyboards to facilitate Sanskrit data-entry in Unicode Devanagari and Unicode Romanization.  The latter follows ISO15919 (anusvāra  vocalic r and l r̥ l̥) except that like IAST no macron is used over e and o. These should be used with fonts that properly combine conjuncts and accents, i.e. for Devanagari: Sanskrit2020, Microsoft's SanskritText, Shobhika, etc., Times Roman or Times New Roman, Gandhari Unicode, etc.
The keyboards are available from keyman.com.  First install the Keyman software from there, then search for Sanskrit and find slp1_deva and slp1_roman.  These appear on the 2nd and 3rd pages of the now quite long list of keyboards that show up there.
Yours,
Peter

Peter Scharf
scharfpm7@gmail.com