diff --git a/api/src/tablo.ts b/api/src/tablo.ts
index 1b74fc9..80ea9d3 100644
--- a/api/src/tablo.ts
+++ b/api/src/tablo.ts
@@ -1,12 +1,24 @@
 import { Hono } from "hono";
-import { authMiddleware, r2Middleware, streamChatMiddleware } from "./middleware.js";
-import { PostgrestError, type SupabaseClient, type User } from "@supabase/supabase-js";
+import {
+  authMiddleware,
+  r2Middleware,
+  streamChatMiddleware,
+} from "./middleware.js";
+import {
+  PostgrestError,
+  type SupabaseClient,
+  type User,
+} from "@supabase/supabase-js";
 import type { Transporter } from "nodemailer";
 import { generateToken } from "./token.js";
 import { config } from "./config.js";
 import type { Tables } from "./database.types.ts";
 import type { StreamChat } from "stream-chat";
-import type { TabloInsert, EventInsertInTablo, EventAndTablo } from "./types.ts";
+import type {
+  TabloInsert,
+  EventInsertInTablo,
+  EventAndTablo,
+} from "./types.ts";
 import { PutObjectCommand, type S3Client } from "@aws-sdk/client-s3";
 import { generateICSFromEvents, writeCalendarFileToR2 } from "./helpers.js";
 import { transporter } from "./transporter.js";
@@ -120,7 +132,7 @@ tabloRouter.post("/create-and-invite", async (c) => {
     .eq("id", user.id)
     .single();
 
-  if (ownerError || !ownerData) {
+  if (ownerError || !ownerData || invitedUserError || !invitedUser) {
     return c.json({ error: "owner_id is incorrect" }, 400);
   }
 
@@ -166,7 +178,9 @@ tabloRouter.post("/create-and-invite", async (c) => {
     const { data: insertedTablo, error } = await supabase
       .from("tablos")
       .insert({
-        name: `${invitedUserDataTyped.name || "Invité"} / ${ownerDataTyped.name || "Propriétaire"}`,
+        name: `${invitedUserDataTyped.name || "Invité"} / ${
+          ownerDataTyped.name || "Propriétaire"
+        }`,
         color: "bg-blue-500",
         status: "todo",
         owner_id: ownerId,
@@ -184,20 +198,22 @@ tabloRouter.post("/create-and-invite", async (c) => {
   }
 
   // Grant access to the current user (invited user) as a non-admin member
-  const { error: tabloAccessError } = await supabase.from("tablo_access").insert(
-    {
-      tablo_id: tabloData.id,
-      user_id: user.id,
-      // ** IMPORTANT **
-      is_admin: false,
-      // -------------
-      is_active: true,
-      granted_by: ownerId,
-    }
-    // {
-    //   onConflict: "tablo_id, user_id",
-    // }
-  );
+  const { error: tabloAccessError } = await supabase
+    .from("tablo_access")
+    .insert(
+      {
+        tablo_id: tabloData.id,
+        user_id: user.id,
+        // ** IMPORTANT **
+        is_admin: false,
+        // -------------
+        is_active: true,
+        granted_by: ownerId,
+      }
+      // {
+      //   onConflict: "tablo_id, user_id",
+      // }
+    );
 
   if (tabloAccessError) {
     console.error("tabloAccessError", tabloAccessError);
@@ -358,7 +374,10 @@ tabloRouter.post("/invite", async (c) => {
   }
 
   if (tablo.owner_id !== sender.id) {
-    return c.json({ error: "You are not allowed to invite users to this tablo" }, 400);
+    return c.json(
+      { error: "You are not allowed to invite users to this tablo" },
+      400
+    );
   }
 
   const { error } = await supabase.from("tablo_invites").insert({
@@ -372,13 +391,15 @@ tabloRouter.post("/invite", async (c) => {
     return c.json({ error: error.message }, 500);
   }
 
-  const info = await transporter.sendMail({
+  await transporter.sendMail({
     from: `${sender.email} via XTablo <noreply@xtablo.com>`,
     to: recipientmail,
     subject: "Vous avez été invité à un tablo",
     html: `<p>Vous avez été invité à un tablo avec <a href="${
       config.XTABLO_URL
-    }/join/${encodeURIComponent(tablo.name)}?token=${encodeURIComponent(token)}">ce lien</a></p>`,
+    }/join/${encodeURIComponent(tablo.name)}?token=${encodeURIComponent(
+      token
+    )}">ce lien</a></p>`,
   });
 
   return c.json({
@@ -411,15 +432,17 @@ tabloRouter.post("/join", async (c) => {
 
   const { id: invite_id, tablo_id, invited_by } = inviteData;
 
-  const { error: tabloAccessError } = await supabase.from("tablo_access").insert({
-    tablo_id,
-    user_id: joiner.id,
-    // ** IMPORTANT **
-    is_admin: false,
-    // -------------
-    is_active: true,
-    granted_by: invited_by,
-  });
+  const { error: tabloAccessError } = await supabase
+    .from("tablo_access")
+    .insert({
+      tablo_id,
+      user_id: joiner.id,
+      // ** IMPORTANT **
+      is_admin: false,
+      // -------------
+      is_active: true,
+      granted_by: invited_by,
+    });
 
   if (tabloAccessError) {
     console.error("tabloAccessError", tabloAccessError);
diff --git a/justfile b/justfile
index d3bf68a..cf28da5 100644
--- a/justfile
+++ b/justfile
@@ -19,12 +19,18 @@ _api-dev:
 test-api:
 	cd api && npm run test
 
+# Daily workflows
+
 dev:
 	just _api-dev & (just _frontend-dev)
 	
+# Types recipes
+	
 update-types:
 	npx supabase gen types typescript --project-id "mhcafqvzbrrwvahpvvzd" --schema public > ui/src/types/database.types.ts && cp ui/src/types/database.types.ts api/src/database.types.ts && cp ui/src/types/database.types.ts xtablo-expo/lib/database.types.ts
 	
+# Expo recipes
+	
 expo-install-all:
 	cd xtablo-expo && npx expo install