Developer Tenant Woes

I've received a message telling me my Dev tenant will expire unless I perform some development activity. So I ask, what exactly is considered development activity?

 

I work in the professional services business and my ability to sell, develop solutions and provide consulting for Azure and Office 365 depends largely on my ability to realise solutions in my own tenant.

 

While I don't always write code, I configure and manage AAD, AIP Unified Labeling, Identity Protection scenarios, Intune solutions, MFA solutions, Conditional Access, and then typically design and implement Office 365 solutions and workloads based on all of that. I do as much of that as possible through PowerShell, which I then package up to later automate tedious tasks. I've also integrated AAD Connect on prem, several Win10 VMs to demonstrate Identity, device and info security solutions.

 

So I ask: what must I continue to do so that this tenant stays active? I don't want to register yet another tenant name, integrate everything again, register and synch a new domain name... all because I have to start a new tenant. That is exactly what happened with my paid tenant  when I had to give it up and it's still left a sour taste in my mouth.

 

It'd be nice to be able to go back to a paid yearly tenant, so I didn't have to spend my time fighting with this. Alternatively, if there's a better model that fits my solution design and development needs, I'm all ears.

 

Thank you all for your input and anything that might help.