accessing
instancesCache
	| cache cacheFile |
	cacheFile := FileLocator temp / 'nitter-instances.ston'.
	cacheFile exists
		ifFalse: [ 
			cache := STON fromString: 'https://status.d420.de/api/v1/instances' asUrl retrieveContents.
			MarkupFile exportAsFileOn: cacheFile containing: cache ].
	^ STON fromString: cacheFile contents