diff --git a/Dockerfile b/Dockerfile
index 566555f..f0dc8ac 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -34,3 +34,7 @@ COPY --from=build-runner /tmp/app/build /app/build
 
 # Start bot
 CMD [ "npm", "run", "start" ]
+
+LABEL org.opencontainers.image.source=https://git.ludoviko.ch/lucxjo/er
+LABEL org.opencontainers.image.description="A Discord bot for the Young Royals guild"
+LABEL org.opencontainers.image.licenses="GPL-3.0-or-later"
diff --git a/src/events/member_event.ts b/src/events/member_event.ts
new file mode 100644
index 0000000..bd85a0e
--- /dev/null
+++ b/src/events/member_event.ts
@@ -0,0 +1,73 @@
+import { ArgsOf, Discord, On } from "discordx";
+import { prisma } from "../main.js";
+
+@Discord()
+export class MemberEvent {
+  @On({ event: "guildMemberAdd" })
+  async memberJoin([member]: ArgsOf<"guildMemberAdd">) {
+    await prisma.member.create({
+      data: {
+        dgid: member.guild.id,
+        duid: member.id,
+        name: member.displayName,
+      },
+    });
+  }
+
+  @On({ event: "guildMemberRemove" })
+  async memberRemove([member]: ArgsOf<"guildMemberRemove">) {
+    await prisma.member.delete({
+      where: {
+        dgid_duid: {
+          duid: member.id,
+          dgid: member.guild.id,
+        },
+      },
+    });
+  }
+
+  @On({ event: "guildMemberUpdate" })
+  async memberUpdate([oldM, newM]: ArgsOf<"guildMemberUpdate">) {
+    if (oldM.premiumSince !== newM.premiumSince) {
+      if (newM != null) {
+        const guild = newM.guild;
+
+        const role = await guild.roles.create({
+          name: newM.nickname ?? newM.displayName,
+          reason: `${newM.nickname ?? newM.displayName} just boosted!`,
+        });
+
+        await newM.roles.add(role);
+
+        const m = await prisma.member.findUnique({
+          where: {
+            dgid_duid: {
+              dgid: guild.id,
+              duid: newM.id,
+            },
+          },
+        });
+
+        if (m) {
+          await prisma.member.update({
+            where: {
+              id: m.id,
+            },
+            data: {
+              booster_role_id: role.id,
+            },
+          });
+        } else {
+          await prisma.member.create({
+            data: {
+              duid: newM.id,
+              dgid: guild.id,
+              booster_role_id: role.id,
+              name: newM.displayName,
+            },
+          });
+        }
+      }
+    }
+  }
+}