guess.js not compatible if angular is in nx workspace

[ElecTreeFrying]

Need help on how to use guess.js with angular in nx workspace.

guess-parser/dist/guess-parser/index.js

    var path = ['package.json', '../package.json']
        .map(function (p) { return path_1.join(base, p); })
        .filter(fs_1.existsSync)
        .pop();
    if (!path) {
        throw new Error('Unable to discover the project type');
    }
    var content = JSON.parse(fs_1.readFileSync(path).toString());
    var exists = function (file) { return fs_1.existsSync(path_1.join(base, file)); };
    var d = dep(content);
    var dd = devDep(content);
    var tsconfig = 'tsconfig.app.json';
    var srcTsConfig = path_1.join('src', tsconfig);
    if (dd('@angular/cli') && (exists(srcTsConfig) || exists(tsconfig))) {

This line of code will always return false.
exists(srcTsConfig) || exists(tsconfig)

NX workspace file structure

- apps
--> my-project
----> tsconfig.app.json
- package.json

[tstackhouse]

I'm doing a little bit of tinkering with this, and I happen to be in an Nx workspace. It seems to work if I pass my app's tsconfig:

import { parseAngularRoutes } from 'guess-parser';

console.log(parseAngularRoutes('apps/my-app/tsconfig.app.json'));