diff --git a/server/main.lua b/server/main.lua
index 472bc55..4fecb84 100644
--- a/server/main.lua
+++ b/server/main.lua
@@ -7,4 +7,71 @@ attachscreen(18, 19, 0x3C)
 neo = neopixel.attach(neopixel.WS2812B, pio.GPIO21, 8)
 
 cls()
-console("test")
+console("Welcome to pendu!")
+console("by Lorem Impsum Corp.")
+
+client = mqtt.client("Server", "mqtt.leizour.fr", 8883, true)
+client:connect("student", "O99Rq8$F12NXzhL5caya")
+
+playing = false
+won = false
+
+word = ""
+letters_played = ""
+
+function draw_ui()
+    cls()
+    if playing then
+        console("mot à deviner: " .. word)
+        console("lettres essayées: " .. letters_played)
+        return
+    end
+    if won then
+        console("Le mot " .. word .. " a été deviné !")
+        console("en attente d'une proposition de mot...")
+    end
+end
+
+function update_victory()
+
+end
+
+function broadcast_state()
+    if playing then
+        client:publish("pendu/gamestate", "PLAYING", mqtt.QOS0)
+    else
+        client:publish("pendu/gamestate", "WAITING", mqtt.QOS0)
+    end
+end
+
+function handle_state_query(len, message, topic_len, topic_name)
+    if topic_name != "pendu/gamestate" or message != "query" then
+        return
+    end
+    broadcast_state()
+end
+
+client:subscribe("pendu/gamestate", mqtt.QOS0, handle_state_query)
+
+function handle_word_suggestion(len, message, topic_len, topic_name)
+    if topic_name != "pendu/word" or playing then
+        return
+    end
+    word = message
+    won = false
+    playing = true
+    broadcast_state()
+end
+
+client:subscribe("pendu/word", mqtt.QOS0, handle_word_suggestion)
+
+function handle_letter(len, message, topic_len, topic_name)
+    if topic_name != "pendu/letter" or not playing then
+        return
+    end
+    letters_played = letters_played .. message
+    update_victory()
+    draw_ui()
+end
+
+client:subscribe("pendu/letter", mqtt.QOS0, handle_letter)
\ No newline at end of file