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f4pga-arch-defs
FOSS architecture definitions of FPGA hardware useful for doing PnR device generation.
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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
I'd say that is understood (at least by some). The promise of open source is an overall better quality of software tooling with more flexibility. Being open source enables companies, academics and individuals to work together to get a better final result. The chips alliance F4PGA (https://f4pga.org/) workgroup has been making great progress (previously under the banner of Symbiflow). Xilinx have joined too which is great.
NOTE:
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Hence, a higher number means a more popular project.