At: https://libraries.io/github/drulm is the profile page on Libraries.io which contains some of the Open Source software contributions made by Darrell Raymond Ulm.
Github is taking over the online software development repository sphere, and certainly have a huge market share of all online managed software projects, Open Source and proprietary.
Here is the Github account profile page with source code in C#, C/C++, PHP, ASM and others for Darrell Ulm and other links to this information can be found at the following: Profile, Tumblr and Blogger.
GitHub is a great tool for software development making most tasks more streamlined and helping multi-developer projects come together more cleanly with a smooth workflow.
Link shows past work, much has moved to GitHub for Darrell Ulm.
For work that was done further back before GitHub, some information is at: Darrell Ulm, Open Source Software profile at OpenHub, which is an interesting site to show open source contributions.