Now I have lots of static png files , whose path is such as /z/x/y*.png, can I use tessera?

[qxang]

Now I have lots of static png files , whose path is such as /z/x/y*.png, can I use tessera?

[mojodna]

Have a look at https://github.com/mapbox/tilelive-file

After installing it alongside tessera, start up with tessera file://path/to/tiles (where the path is the directory that contains zooms).