Just another blog software.
Did you know Commento?
I came across the Commento commenting system a while ago. Since it required a separate script tag when I found it, I decided to make the comments integration slightly more flexible. However, Commento's developer improved Commento later so this additional step was entirely unnecessary. The joys of Open Source...
So, anyway, blogcpp version 8, so be released in Q2 2018, will fully support Commento comments. You can already test it by grabbing the latest code which also fixes an annoying bug introduced in version 7. Oops! 🙂