Apologies for polluting a thread about curl! Turns out my project’s issue was fixable by updating node. I was previously running an old node engine at 8.x.
I updated my package.json to use latest stable (14.x):
...
"engines": {
"node": "14.x"
},
...
And after all the libraries re-installed and re-built it was up and running again and able to make requests to hosts with Let’sEncrypt certs. 