make some other things customizable

app/import_worker.rb

···
     end
 
     def get_registration_time(user)
-      profile = Minisky.new('public.api.bsky.app', nil).get_request('app.bsky.actor.getProfile', { actor: user.did })
+      sky = Minisky.new(ENV['APPVIEW_HOST'] || 'public.api.bsky.app', nil)
+      profile = sky.get_request('app.bsky.actor.getProfile', { actor: user.did })
+
       Time.parse(profile['createdAt'])
     end
   end

app/post_downloader.rb

···
   attr_accessor :report, :stop_when_empty
 
   def initialize
-    @sky = Minisky.new(ENV['APPVIEW'] || 'public.api.bsky.app', nil)
+    @sky = Minisky.new(ENV['APPVIEW_HOST'] || 'public.api.bsky.app', nil)
 
     @total_count = 0
     @oldest_imported = Time.now

app/server.rb

···
   set :port, 3000
 
   PAGE_LIMIT = 25
-  HOSTNAME = 'lycan.feeds.blue'
+  HOSTNAME = ENV['SERVER_HOSTNAME'] || 'lycan.feeds.blue'
 
   helpers do
     def json_response(data)