deno add jsr:@luca/cases works.deno add cliffy@v1.0.0-rc.7
error: cliffy@v1.0.0-rc.7 was not found in either jsr or npm.deno add @std/path @std/assert
error: @std/path is missing a prefix. Did you mean deno add jsr:@std/path?deno add?deno add to find the latest for me, automatically.