What you lack can become a reason to design differently.

A missing capability makes the standard design impossible, which forces a different one. That different design is not necessarily worse and frequently ends up distinctive, since it had to be reasoned from what was available rather than assembled from the default parts.

Take the thing you lack and treat it as the starting condition rather than the obstacle. Ask what a good solution looks like given its permanent absence. The answer is often more interesting than the original plan.