Should deno install work with jsr?

What am I doing wrong? When I try to install a CLI from jsr.io and then use it, I get an error message:

Install (example):

deno install --allow-read --allow-run -n dx -c ./deno.json jsr:@dx/dx

deno install --allow-read --allow-run -n dx -c ./deno.json jsr:@dx/dx

Execute:

dx --version

dx --version

Error:
error: Module not found "jsr:@dx/dx".