All the people who develop OSS in their free time.
Text editors, plugins, kernels, package managers, compilers, the list goes on in any ecosystem.
The number of these projects I interact with knowingly and unknowingly on a daily basis is ridiculous and represents the cumulative effort of many.
My day job is all the better for it, so I take my hat off to those awesome folk.
Thanks for all the hard fought PRs, features, and optimizations that make our lives as developers what they are today.