From the bug report at https://spectrum.chat/zeit/now/reading-template-assets-on-file-system-using-now-node~56f167d9-7416-444f-a352-6738b341df48, we should be able to support the following pattern:

const template_location = process.cwd() + '/api/email-templates/' + template_name + name + '.html';

That is:

1. Supporting process.cwd() as a trigger for expression analysis
2. Supporting wildcards in the analysis
3. Supporting wildcards in the emission process