There's no TeX Hour tonight because the 2021 TeX Conference has already
started. There'll be an accessibility TeX Hour next week. The topic will be
technical obstacles to Accessible TeX. It will be informed by 8 talks at
the TeX Conference.

Zoom details for next TeX Hour

Date and time: Thursday 12 August, 6.30 to 7.30pm UK time.
UK time now: https://time.is/UK.
Zoom URL:
Meeting ID: 785 5125 5396
Passcode: knuth

TeX Conference and accessibility talks

You'll find live streams from the TeX Conference at
https://www.youtube.com/c/TeXUsersGroup. From 11:00am to 14:00pm tomorrow
(UK time) there'll be 4 talks on math accessibility, and another 4 talks
from 20:30pm tomorrow to 0:45am the next day (UK time).

For more details see https://tug.org/tug2021/sched.html, which helpfully
gives the talk times in your current local time.

with best regards