I was using version 1.x for a while on the same machine, but after downloading 2.0.72 Space Age, can't get it to launch.
I'm running macOS 11.7.10 (the latest macOS version supported on this old machine). Hardware information is below:
Hardware
Model Name: MacBook Pro
Model Identifier: MacBookPro11,3
Processor Name: Quad-Core Intel Core i7
Processor Speed: 2.6 GHz
Number of Processors: 1
Total Number of Cores: 4
L2 Cache (per Core): 256 KB
L3 Cache: 6 MB
Hyper-Threading Technology: Enabled
Memory: 16 GB