diff --git a/apps/app/components/LectureForm/index.js b/apps/app/components/LectureForm/index.js
index 248bc5ca..32ba42d6 100644
--- a/apps/app/components/LectureForm/index.js
+++ b/apps/app/components/LectureForm/index.js
@@ -34,6 +34,7 @@ export default function LectureForm({ id }) {
       setEvents(response.data);
     });
   }, []);
+
   useEffect(() => {
     if (id !== "new") {
       listEvents().then((response) => {
@@ -51,15 +52,15 @@ export default function LectureForm({ id }) {
   }, []);
 
   const [ninjas, setNinjas] = useState([]);
+  const fetchData = useCallback(() => {
+    let promise;
 
-  let promise;
-
-  const fetchData = () => {
     if (!promise) {
       promise = Promise.all(events.map((event) => getNinjaEvents(event.id)));
     }
+
     return promise;
-  };
+  }, [events]);
 
   useEffect(() => {
     fetchData().then((responses) => {
@@ -71,7 +72,7 @@ export default function LectureForm({ id }) {
         )
       );
     });
-  }, [events]);
+  }, [fetchData]);
 
   const [filteredNinjas, setFilteredNinjas] = useState([]);
   const handleEventChange = useCallback(
@@ -94,7 +95,8 @@ export default function LectureForm({ id }) {
     const filtered = mentors.filter((mentor) => {
       const lecture = lectures.find(
         (lecture) =>
-          lecture.mentor.id === mentor.id && lecture.event.id === selectedEvent
+          lecture.mentor.id === mentor.id &&
+          lecture.event.id === selectedEvent.id
       );
       return !lecture;
     });
@@ -107,17 +109,6 @@ export default function LectureForm({ id }) {
     );
   }, [filteredNinjas]);
 
-  useEffect(() => {
-    const filtered = ninjas.filter((ninja) => {
-      const lecture = lectures.find(
-        (lecture) =>
-          lecture.ninja.id === ninja.id && lecture.event.id === selectedEvent
-      );
-      return !lecture;
-    });
-    setFilteredNinjas(filtered);
-  }, [ninjas, selectedEvent, lectures, handleEventChange]);
-
   useEffect(() => {
     setFilteredMentors(
       filteredMentors.sort((a, b) => a.first_name.localeCompare(b.first_name))
@@ -125,7 +116,7 @@ export default function LectureForm({ id }) {
   }, [filteredMentors]);
 
   const onFinish = (values) => {
-    if (Object.keys(selectedEvent).length != 0) {
+    if (Object.keys(selectedEvent).length !== 0) {
       api
         .createLecture(values)
         .then(() => {
diff --git a/apps/app/components/Signup/index.js b/apps/app/components/Signup/index.tsx
similarity index 67%
rename from apps/app/components/Signup/index.js
rename to apps/app/components/Signup/index.tsx
index 8bb22d9b..547a61ab 100644
--- a/apps/app/components/Signup/index.js
+++ b/apps/app/components/Signup/index.tsx
@@ -6,6 +6,7 @@ import {
   Form,
   Input,
   Radio,
+  Space,
   Tooltip,
   Typography,
 } from "antd";
@@ -15,21 +16,19 @@ import {
   MailOutlined,
 } from "@ant-design/icons";
 import { useAuth } from "@coderdojobraga/ui";
-import Koi from "~/components/Koi";
 
 import styles from "./style.module.css";
 
 function Signup() {
   const { Title, Text } = Typography;
   const { errors, isLoading, sign_up } = useAuth();
-
   const [size, setSize] = useState("");
 
-  const handleSizeChange = (e) => {
+  const handleSizeChange = (e: any) => {
     setSize(e.target.value);
   };
 
-  const onFinish = ({ email, password, role }) => {
+  const onFinish = ({ email, password, role }: any) => {
     sign_up({ email, password, role });
   };
 
@@ -73,26 +72,30 @@ function Signup() {
           },
         ]}
       >
-        <Radio.Group
-          className={styles.select}
-          value={size}
-          onChange={handleSizeChange}
-        >
-          <Radio.Button className={styles.option} value="guardian">
-            Guardião
-          </Radio.Button>
-          <Radio.Button className={styles.option} value="mentor">
-            Mentor
-          </Radio.Button>
-          <Tooltip
-            className={styles.option}
-            title="Inicia sessão como Guardião para inscreveres um Ninja"
-          >
-            <Radio.Button disabled>
-              Ninja &#160;
-              <InfoCircleOutlined />
-            </Radio.Button>
-          </Tooltip>
+        <Radio.Group value={size} onChange={handleSizeChange}>
+          <Space direction="vertical">
+            <Radio value="guardian" className="mb-2">
+              <span className="inline-block w-20">Guardião</span>
+              <label id="mentor-description" className="text-gray-500">
+                Tutor legal da criança.
+              </label>
+            </Radio>
+            <Radio value="mentor" className="mb-2">
+              <span className="inline-block w-20">Mentor</span>
+              <label id="mentor-description" className="text-gray-500">
+                Voluntário na organização.
+              </label>
+            </Radio>
+            <Tooltip title="Inicia sessão como Guardião para inscreveres um Ninja">
+              <Radio disabled value="1">
+                <span className="inline-block w-20">Ninja</span>
+                <label id="mentor-description" className=" text-gray-500">
+                  Criança participante. &nbsp;
+                </label>
+                <InfoCircleOutlined />
+              </Radio>
+            </Tooltip>
+          </Space>
         </Radio.Group>
       </Form.Item>
 
@@ -124,7 +127,7 @@ function Signup() {
       <Form.Item
         className={styles.button}
         validateStatus={errors && "error"}
-        help={errors?.email && "Email já registado"}
+        help={errors || "Email já registado"}
       >
         <Button
           type="primary"
diff --git a/apps/app/pages/admin/lectures/presences/index.tsx b/apps/app/pages/admin/lectures/presences/index.tsx
index 7a399dc8..20b4575d 100644
--- a/apps/app/pages/admin/lectures/presences/index.tsx
+++ b/apps/app/pages/admin/lectures/presences/index.tsx
@@ -38,6 +38,7 @@ export default function Presences() {
   const [selectedLectures, setSelectedLectures] = useState<Lecture[]>([]);
   const [locations, setLocations] = useState<any[]>([]);
   const router = useRouter();
+
   const onFinish = (values: any, lectureId: string) => {
     api
       .updateLecture(lectureId, values)
@@ -98,7 +99,7 @@ export default function Presences() {
         key: lecture.id,
       });
     });
-  }, []);
+  }, [selectedLectures, data]);
 
   useEffect(() => {
     api
@@ -111,36 +112,29 @@ export default function Presences() {
         );
       });
   }, []);
-
   useEffect(() => {
-    if (selectedEvent !== "") {
-      setSelectedLectures(
-        lectures.filter((lecture) => lecture.event.id === selectedEvent)
-      );
-    }
-  }, [selectedEvent, lectures]);
+    const generateData = () => {
+      const data: any[] = [];
 
-  useEffect(() => {
-    generateData();
-  }, [selectedLectures]);
-
-  const generateData = () => {
-    const data: any[] = [];
-
-    selectedLectures.map((lecture: any) => {
-      if (lecture.attendance == null) {
-        lecture.attendance = "both_absent";
-      }
-      data.push({
-        ninja: `${lecture.ninja.first_name} ${lecture.ninja.last_name}`,
-        mentor: `${lecture.mentor.first_name} ${lecture.mentor.last_name}`,
-        presences: `${lecture.attendance}`,
-        key: lecture.id,
+      selectedLectures.forEach((lecture: any) => {
+        if (lecture.attendance == null) {
+          lecture.attendance = "both_absent";
+        }
+        data.push({
+          ninja: `${lecture.ninja.first_name} ${lecture.ninja.last_name}`,
+          mentor: `${lecture.mentor.first_name} ${lecture.mentor.last_name}`,
+          presences: `${lecture.attendance}`,
+          key: lecture.id,
+        });
       });
-    });
 
-    setData(data);
-  };
+      setData(data);
+    };
+
+    if (selectedLectures.length > 0) {
+      generateData();
+    }
+  }, [selectedLectures]);
 
   const handleEditButtonClick = () => {
     setEditButtonVisible(false);
diff --git a/apps/web/.env b/apps/web/.env
new file mode 100644
index 00000000..f2c650bb
--- /dev/null
+++ b/apps/web/.env
@@ -0,0 +1,4 @@
+NEXT_PUBLIC_API_URL=http://localhost:4000
+WEB_URL=http://localhost:3000
+BLOG_URL=http://localhost:3001
+APP_URL=http://localhost:3002