Need advice on remote users accessing a locally webpage hosted

I'm looking for options on how to do the following. I am in a corporate environment with a 60E, multiple physical servers and VM's. I have 40-50 users that i want to give remote access to a web page hosted on a VM. They are going to use this webpage to clock in and out multiple times a day.

Ideally i can send them a bookmark or link to this page and its a one click for them to get to a login page. The users are not technically literate. The user devices are not on the domain and id prefer not to go down the road of forticlient on each device.

What are my options?