loopback.js `POST /foo` isn't offered when using relations - loopbackjs

Question

I need a series of endpoints like:
POST /company
POST /company/{id}/customers
POST /company/{id}/customers/{fk}
GET /company/{id}/customers/{fk}
I get #2 and #3 ok, but not number 1 - so, when I try GET /company/{id}/customers/{fk} - it naturally tells me that company id xxx doesn't exist. Yet, the endpoints don't exist.
Below is my configuration if anyone can explain what I am missing
{
"_meta": {
"sources": [
"loopback/common/models",
"loopback/server/models",
"../common/models",
"./models"
],
"mixins": [
"loopback/common/mixins",
"loopback/server/mixins",
"../common/mixins",
"./mixins"
]
},
"customer": {
"dataSource": "memory",
"public": false
},
"company": {
"dataSource": "memory",
"public": true
},
"payment": {
"dataSource": "memory",
"public": false
},
"invoice": {
"dataSource": "memory",
"public": false
},
"integration": {
"dataSource": "memory",
"public": true
}
}
Company model:
{
"name": "company",
"plural": "companies",
"base": "Model",
"idInjection": true,
"options": {
"validateUpsert": true
},
"properties": {
"id": {
"type": "string",
"required": true
}
},
"validations": [],
"relations": {
"customers": {
"type": "hasMany",
"model": "customer",
"foreignKey": "id"
},
"payments": {
"type": "hasMany",
"model": "payment",
"foreignKey": "id"
},
"invoices": {
"type": "hasMany",
"model": "invoice",
"foreignKey": "id"
},
"integration": {
"type": "hasOne",
"model": "integration",
"foreignKey": "companyId",
"primaryKey": "id"
}
},
"acls": [],
"methods": {}
}
Customers (properties removed for brevity sake):
{
"name": "customer",
"plural": "customers",
"base": "Model",
"idInjection": true,
"options": {
"validateUpsert": true
},
"validations": [],
"relations": {
"company": {
"type": "belongsTo",
"model": "company",
"foreignKey": "id",
"primaryKey": "id"
}
},
"acls": [],
"methods": {}
}