There are 2 repositories under openram topic.
Open source process design kit for usage with SkyWater Technology Foundry's 130nm node.
OpenLane is an automated RTL to GDSII flow based on several components including OpenROAD, Yosys, Magic, Netgen and custom methodology scripts for design exploration and optimization.
Caravel is a standard SoC hardness with on chip resources to control and read/write operations from a user-dedicated space.
Design of 1024x32 SRAM (32Kbits) using OpenRAM and SKY130 PDKs with operating voltage of 1.8V and access time < 2.5ns
The source codes used in the blog post available at: https://rayanfam.com/topics/hardware-design-stack/