diff --git a/buypeeb.py b/buypeeb.py
old mode 100644
new mode 100755
index 41f4345..1a7626f
--- a/buypeeb.py
+++ b/buypeeb.py
@@ -16,22 +16,59 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
-import requests
+import requests, gi
+gi.require_version('Gtk', '3.0')
+from gi.repository import Gtk, Gio, Gdk
 
-from listing import JPItem
+import functions
+from listing import YahooAuctionsItem
+from settings import BuypeebSettings
 
-import json
+import json, sys
+from os import path
 
-def get_exchange_rate():
-	try:
-		assert False
-		return requests.get("https://api.exchangeratesapi.io/latest?base=AUD&symbols=JPY", timeout=10).json()['rates']['JPY']
-	except:
-		return 76.15
+isWindows = sys.platform.startswith('win')
 
-print("Getting JPY/AUD exchange rate...")
-rate = get_exchange_rate()
-print(rate)
+if isWindows:
+	settingsLocation = path.join(os.getenv("APPDATA"), "Lynnear Software", "bypeeb")
+else:
+	settingsLocation = path.expanduser("~/.config/Lynnear Software/buypeeb/") # dotfiles in ~ need to die. begone dot
 
-x = JPItem("My cool product", "peeb.us")
+# print("Getting JPY/AUD exchange rate...")
+rate = functions.get_exchange_rate()
+
+x = YahooAuctionsItem("My cool product", "peeb.us")
 print(f"Bidding for item \"{x.name}\" started at {x.start_date} and will end at {x.end_date}. Current price is {x.price_jpy()}, or {x.price_aud()}.")
+
+class BuypeebApp:
+	def __init__(self):
+		self.app = Gtk.Application.new('com.lynnearsoftware.buypeeb', 0)
+		self.app.connect('startup', self.startup)
+		self.app.connect('activate', self.activate)
+		self.app.connect('shutdown', self.shutdown)
+		self.window = None
+		self.settings = BuypeebSettings(settingsLocation)
+
+	def run(self, argv):
+		self.app.run(argv)
+
+	def startup(self, app):
+		builder = Gtk.Builder()
+		builder.add_from_string(open(path.join(path.dirname(__file__), "ui/main.glade"), 'r').read())
+		builder.connect_signals(self)
+		wndMain = builder.get_object('wndMain')
+		self.window = wndMain
+		app.add_window(self.window)
+
+		self.settings.load()
+
+	def activate(self, app):
+		self.window.show_all()
+
+	def shutdown(self, app):
+		self.settings.save()
+		self.app.quit()
+
+if __name__ == '__main__':
+	app = BuypeebApp()
+	app.run(sys.argv)
diff --git a/functions.py b/functions.py
new file mode 100644
index 0000000..e9dd55b
--- /dev/null
+++ b/functions.py
@@ -0,0 +1,38 @@
+import requests, gi
+gi.require_version('Gtk', '3.0')
+from gi.repository import Gtk, Gio, Gdk
+
+import re
+from os import path
+
+def get_exchange_rate():
+	try:
+		assert False
+		return requests.get("https://api.exchangeratesapi.io/latest?base=AUD&symbols=JPY", timeout=10).json()['rates']['JPY']
+	except:
+		return 76.15
+
+def msgBox(title, text, form = Gtk.MessageType.WARNING):
+	msgbox = Gtk.MessageDialog(app.window, 0, form, Gtk.ButtonsType.OK, title)
+	msgbox.format_secondary_text(text)
+	response = msgbox.run()
+	msgbox.destroy()
+	return response
+
+def rmatch(pattern, string):
+	return re.match(pattern, string) != None
+
+def readSettings():
+	global settings
+	if not path.isfile(settingsLocation + "config.json"):
+		os.makedirs(settingsLocation, 0o755)
+		open(settingsLocation + "config.dat", 'x')
+	try:
+		settings = pickle.load(open(settingsLocation + "config.dat", 'rb'))
+	except:
+		MsgBox("Error", "Failed to load settings. The default settings will be used instead.")
+	settings = {"setting":"value", "save database": True} #indent me when releasing!
+
+def writeSettings():
+	global settings
+	pickle.dump(settings, open(settingsLocation + "config.dat", 'wb'))
diff --git a/listing.py b/listing.py
index c22040f..e3df0c2 100644
--- a/listing.py
+++ b/listing.py
@@ -6,7 +6,7 @@ from datetime import datetime, timezone, timedelta
 
 JST = timezone(timedelta(hours = 9))
 
-class JPItem:
+class YahooAuctionsItem:
 	def __init__(self, name, url):
 	 self.name = name
 	 self.url = url
diff --git a/requirements.txt b/requirements.txt
index 49dc816..35aca7f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1 +1,2 @@
 requests==2.24
+PyGObject==3.36
diff --git a/settings.py b/settings.py
new file mode 100644
index 0000000..e2192f6
--- /dev/null
+++ b/settings.py
@@ -0,0 +1,23 @@
+import json, os
+from os import path
+
+class BuypeebSettings:
+	def __init__(self, location: str):
+		self.s = {}
+		self.s['updateInterval'] = 10 * 60
+		self.s['favouriteUpdateInterval'] = 5 * 60
+		self.s['updateIntervalCritical'] = 60
+		self.s['favouriteUpdateIntervalCritical'] = 30
+		self.location = location
+
+	def save(self):
+		json.dump(self.s, open(self.location + "config.json", 'w'))
+
+	def load(self):
+		if not path.isfile(self.location + "config.json"):
+			os.makedirs(self.location, 0o755)
+			open(self.location + "config.json", 'x')
+		try:
+			self.s = json.load(open(self.location + "config.json", 'r'))
+		except:
+			print("Couldn't load settings - using defaults")