a stable place, free from vibrations. A dedicated shelf might be a solution (there is one made in JLC available).
A friend has it for decades, serviced once after some 20 years, and according to him, it de facto does not need adjusting - it is anough to set the time when it changes from summer saving to the winter one and vice versa.
Mine is a young one (7 y only), its support is not absolutely stable, and I adjust the time once a month, once in two months.
Watching the slow pace of the balance wheel is definitely something that brings harmony to your mind -- hope you will enjoy it!
petr