I work on mods for Serious Sam Classic: The Second Encounter for the most part (and sometimes The First Encounter too). Check my GitHub or navigate the site using the top menus.
I also upload my projects on itch.io. It's a way more convenient platform instead of having to create separate pages for each of my projects in pure HTML and CSS.
I don't have any contact information. If you're having a problem with a project of mine or have questions about it, leave a comment on the project page or create an issue in the project's repository, whichever one is more suitable. I don't do technical support for Serious Engine 1 and I won't write any code for you, nor help you with other projects in any capacity.