2023-05-16 UTC
# 
bkil A Blackberry seems to offer `[a-z$ ]` on touch, `[0-9()+*_'"@?!;:,#./-]` with `alt` and others through the `sym` button https://upload.wikimedia.org/wikipedia/commons/0/09/BlackBerryKey2LE3.png That would make utilizing $ in markup pretty convenient as well (along with coding in Bash, Perl or PHP). MathJax and Katex comes to mind.