Setting up multiple devices?

Question

Android

Good afternoon comrades!
The essence of the question is:
there are several identical devices, they need to make the same settings
Briefly: set up a wifi profile, set up a start page and some additional parameters in the browser, set up one of the applications (change its profile)
How can I do this quickly? Those. for windows, I would write a batch file or cab that does what I need.
MDM solutions are very cool (if you recommend fast ones in deployment, I won’t mind), but we need to do it as quickly as possible now, i.e. mdm with trialka per month, which will delete the settings in a month - will not work, because. while we are coordinating payment ... if there is an MDM with a trial, after which the settings will not be deleted and calculated, well, at least for 15-20 devices (in the trial) ...