There are 2 repositories under restir topic.
Vulkan implementation of Fast Volume Rendering with Spatiotemporal Reservoir Resampling.
Code release of the paper "Combining Resampled Importance and Projected Solid Angle Samplings for Many Area Light Rendering"
CUDA ReSTIR Implementation [2022]
Master Lab: Conditional ReSTIR
C++ implementation of ReSTIR on top of a Whitted-style ray tracer