https://anash.org/rabbi-tuviah-peles-73-ah/ Nice writeup by Lev Leviev.
https://col.org.il/news/136114I got to be involved with R' Tuviah a"h in the early days of the Dvar Malchus (when it was only sichos of the Rebbe), we started off with a direct modem connection 2400bps IIRC which would often fail due to bad phone lines (and having the Israeli side with close to zero technical knowledge didn't help much), and at a certain point moved to sprintmail (I had a personal compuserve account back then, but interconnectivity between the two wasn't that great).
I once met him in Kfar Chabad and mentioned something to him about the quality of the print of the Dvar Malchus sold in the US being inferior to the Israeli printing. His response was an eye opener about him, even for myself having dealt with him in the past.
חבל על דאבדין