Thanks, I actually found them a few minutes after I posted about it. I installed them, but evidently they don't work on Debian 8.7 (Jessie). Or maybe it's just my the config of my box. HTM Studio installs just fine, but when I run it I get an error about the version GLIBCXX, the correct version reportedly being "GLIBCXX_3.4.21".
I was able to install GLIBCXX_3.4.20, but I couldn't find packages for Debian Jessie. After much googling and reading, it seems GLIBCXX is included in the package libstdc++6. I ran apt-get upgrade libstdc++6, but the latest version on Debian Jessie seems to be 3.4.20. I could have been misreading something, I was doing all of this at 3:30 am this morning.
Please correct me if I'm in error.