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+# Currently Supported Lints
+
+Note: Most lints (even those not related to properties) are currently defined in 
+`lib/Properties.hs`.
+
+
+## General Tiledmap Requirements
+ - maps must have layers "start" and "floorLayer", and at least one layer wich
+   has as Property "exitUrl"
+ - maps must be orthogonal, tile size must be 32 × 32
+ - maps must not define their own scripts (unless allowed to do so in
+   the configuration file)
+ 
+## Tilesets
+ - tiles must have size 32 × 32 pixels
+ - tilesets must have a property "copyright" (though there is currently
+   no restriction on what licenses are allowed)
+ - entire tilesets should not be larger than 4096 × 4096 pixels
+
+## Layer
+In general, all properties are type checked, and unknown properties are
+rejected. Properties "url" and "allowApi" are rejected.
+
+### Jitsi
+ - "jitsiRoom" must be set if any of the other jitsi-related properties
+   are also set
+ - "jitsiRoomAdminTag" may not be set, but will be adjusted to the
+   assembly name tag
+ - jitsi layers may not be empty
+ - if not set, setting "jitsiTrigger" will be suggested
+ - "jitsiUrl", "jitsiConfig", "jitsiClientConfig" may not be used
+
+### Audio
+ - audio layers may not be empty
+ - "playAudio" must be set of any other audio-related properties are also
+   set
+   
+## Silent Areas
+ - "silent" may not be set on an empty layer
+
+### Websites
+ - layers with "openWebsite" may not be empty
+ - setting "openWebsiteTrigger" will be suggested
+ - local links will be recognised as assets and dependency-checked
+ - other website-related properties require "openWebsite" to also be set
+
+### Exits
+ - may not be set on empty layers
+ - exists to maps also in the repository will be dependency-checked
+
+### Entries
+ - "startLayer" may not be set on empty layers
+ - if set, "startLayer" must be set to `true`