freebeer
https://www.openstreetmap.org/edit#map=18/33.34837/-111.80576
map=18 sh0ws me where my P0tlatch is.  Als0 the butt0ns +/- z00m have a p0pup t0 sh0w current level.
Y0u edit in .... iD.  I believe the URL w0rks, except iD has interp0lated z00m scaling the 256-pixel tiles, unlike the 1:1 rendering in P0tlatch, which I have n0t f0und h0w t0 disable.  iD als0 g0es int0 built-in 0verz00m after exhausting the available tiles, which P0tlatch d0es n0t, all0wing y0u t0 d0 far better w0rk than I can.