diff --git a/.env b/.env
new file mode 100644
index 0000000..efc79bf
--- /dev/null
+++ b/.env
@@ -0,0 +1,2 @@
+API_KEY=""
+ENDPOINT="https://projets.cohabit.fr/redmine"
\ No newline at end of file
diff --git a/import_csv_users.ts b/import_csv_users.ts
index 7970cea..5c6dc4d 100644
--- a/import_csv_users.ts
+++ b/import_csv_users.ts
@@ -1,47 +1,37 @@
-import * as CSV from 'std:csv';
 import { Redmine } from 'bluemine';
 
-const endpoint = 'https://projets.cohabit.fr/redmine';
-const apiKey = '';
-const redmine = new Redmine({ endpoint, apiKey });
-
 type CsvEntry = {
 	firstname: string;
 	lastname: string;
 	mail: string;
 };
 
-const file = await Deno.readTextFile(
-	'C:/Users/Julien/Documents/Stage/FabLab/entrepreneur_full.csv',
-);
-const csv = CSV.parse(file.replaceAll(';', ','), {
-	skipFirstRow: true,
-}) as CsvEntry[];
-
-const userIds: number[] = [];
-
-function capitalize(str: string): string {
-	const [first, ...tail] = str.split('');
-	return `${first.toLocaleUpperCase()}${tail.join('').toLocaleLowerCase()}`;
+async function createUsers(redmine: Redmine, csv: CsvEntry[]) {
+    const userIds: number[] = [];
+    
+    function capitalize(str: string): string {
+        const [first, ...tail] = str.split('');
+        return `${first.toLocaleUpperCase()}${tail.join('').toLocaleLowerCase()}`;
+    }
+    
+    for (const { firstname, lastname, mail } of csv) {
+        const login = `${firstname.toLowerCase()}.${lastname.toLowerCase()}`;
+    
+        try {
+            const { user } = await redmine.users.create({
+                firstname: capitalize(firstname),
+                lastname: capitalize(lastname),
+                mail: mail,
+                login,
+                sendCreationMail: true,
+                generatePassword: true,
+            });
+    
+            userIds.push(user.id);
+        } catch {
+            console.error(login);
+        }
+    }
+    
+    await redmine.unstableGroups.create({ name: 'entrepreneur-01-24', userIds });
 }
-
-for (const { firstname, lastname, mail } of csv) {
-	const login = `${firstname.toLowerCase()}.${lastname.toLowerCase()}`;
-
-	try {
-		const { user } = await redmine.users.create({
-			firstname: capitalize(firstname),
-			lastname: capitalize(lastname),
-			mail: mail,
-			login,
-			sendCreationMail: true,
-			generatePassword: true,
-		});
-
-		userIds.push(user.id);
-	} catch {
-		console.error(login);
-	}
-}
-
-await redmine.unstableGroups.create({ name: 'entrepreneur-01-24', userIds });
diff --git a/import_csv_users_group.ts b/import_csv_users_group.ts
index 880fcd4..a74c707 100644
--- a/import_csv_users_group.ts
+++ b/import_csv_users_group.ts
@@ -1,50 +1,40 @@
-import * as CSV from 'std:csv';
 import { Redmine } from 'bluemine';
 
-const endpoint = 'https://projets.cohabit.fr/redmine';
-const apiKey = '';
-const redmine = new Redmine({ endpoint, apiKey });
-
 type CsvEntry = {
 	firstname: string;
 	lastname: string;
 	mail: string;
 };
 
-const file = await Deno.readTextFile(
-	'C:/Users/Julien/Documents/Stage/FabLab/entrepreneur_full.csv',
-);
-const csv = CSV.parse(file.replaceAll(';', ','), {
-	skipFirstRow: true,
-}) as CsvEntry[];
-
-const users: { id: number; login: string }[] = [];
-
-for (const { firstname, lastname } of csv) {
-	const login = `${firstname.toLowerCase()}.${lastname.toLowerCase()}`;
-
-	try {
-		const list = await redmine.users.list({ limit: 1, name: login });
-		const user = list.users[0];
-
-		console.log(`get user: ${user.login}#${user.id}`);
-		users.push(user);
-	} catch {
-		console.error(`error list: ${login}`);
-	}
-}
-
-const { groups } = await redmine.unstableGroups.list() as unknown as {
-	groups: { id: number; name: string }[];
-};
-
-const { id } = groups.filter(({ name }) => name === 'entrepreneur-01-24')[0];
-
-for (const user of users) {
-	try {
-		console.error(`ok: ${user.login}#${user.id}`);
-		await redmine.unstableGroups.addUser(id, user);
-	} catch {
-		console.error(`error: ${user.login}`);
-	}
+async function addUsersToGroup(redmine: Redmine, csv: CsvEntry[]) {
+    const users: { id: number; login: string }[] = [];
+    
+    for (const { firstname, lastname } of csv) {
+        const login = `${firstname.toLowerCase()}.${lastname.toLowerCase()}`;
+    
+        try {
+            const list = await redmine.users.list({ limit: 1, name: login });
+            const user = list.users[0];
+    
+            console.log(`get user: ${user.login}#${user.id}`);
+            users.push(user);
+        } catch {
+            console.error(`error list: ${login}`);
+        }
+    }
+    
+    const { groups } = await redmine.unstableGroups.list() as unknown as {
+        groups: { id: number; name: string }[];
+    };
+    
+    const { id } = groups.filter(({ name }) => name === 'entrepreneur-01-24')[0];
+    
+    for (const user of users) {
+        try {
+            console.error(`ok: ${user.login}#${user.id}`);
+            await redmine.unstableGroups.addUser(id, user);
+        } catch {
+            console.error(`error: ${user.login}`);
+        }
+    }
 }
diff --git a/mod.ts b/mod.ts
new file mode 100644
index 0000000..7d7c4e6
--- /dev/null
+++ b/mod.ts
@@ -0,0 +1,19 @@
+import { Redmine } from 'bluemine';
+import * as CSV from 'std:csv';
+
+if (import.meta.main) {
+    const endpoint = Deno.env.get('ENDPOINT')
+    const apiKey = Deno.env.get('API_KEY')
+
+    if (apiKey === undefined) throw new Error('Redmine REST API key is missing, please define API_KEY')
+    if (endpoint === undefined) throw new Error('Redmine REST endpoint is missing, please define ENDPOINT')
+
+    const redmine = new Redmine({ endpoint, apiKey });
+
+    const file = await Deno.readTextFile(
+        'path',
+    );
+    const csv = CSV.parse(file.replaceAll(';', ','), {
+        skipFirstRow: true,
+    }) as CsvEntry[];
+}
\ No newline at end of file