diff --git a/.editorconfig b/.editorconfig
index 163eb75..e75be6c 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -4,6 +4,6 @@ root = true
 charset = utf-8
 end_of_line = lf
 insert_final_newline = true
-indent_style = space
-indent_size = 2
+indent_style = tabs
+indent_size = 4
 trim_trailing_whitespace = true
diff --git a/Dockerfile b/Dockerfile
index e53f7a8..6a1bee9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -10,6 +10,6 @@ RUN  cd /opt/app/ && crystal spec
 
 ENV KEMAL_ENV production
 
-RUN cd /opt/app/ && crystal build --mcpu $(gcc -march=native -Q --help=target|grep march|awk '{print $2}'|head -n 1) --release src/sales_backend.cr
+RUN cd /opt/app/ && crystal build --mcpu $(gcc -march=native -Q --help=target|grep march|awk '{print $2}'|head -n 1) --release src/authenticate.cr
 
-CMD /opt/app/sales_backend
\ No newline at end of file
+CMD /opt/app/authenticate
\ No newline at end of file
diff --git a/shard.yml b/shard.yml
index 100f870..db52172 100644
--- a/shard.yml
+++ b/shard.yml
@@ -1,12 +1,12 @@
-name: sales_backend
+name: authenticate
 version: 0.1.0
 
 authors:
   - Ludovic 'Archivist' Lagouardette <lagouardette.ludovic@gmail.com>
 
 targets:
-  sales_backend:
-    main: src/sales_backend.cr
+  authenticate:
+    main: src/authenticate.cr
 
 crystal: 0.25.0
 
diff --git a/src/sales_backend.cr b/src/authenticate.cr
similarity index 52%
rename from src/sales_backend.cr
rename to src/authenticate.cr
index 2a59514..3f7b0ec 100644
--- a/src/sales_backend.cr
+++ b/src/authenticate.cr
@@ -1,7 +1,7 @@
 require "kemal"
-require "./sales_backend/http/user"
-require "./sales_backend/http/product"
-require "./sales_backend/http/category"
+require "./authenticate/http/user"
+require "./authenticate/http/product"
+require "./authenticate/http/category"
 
 get "/" do |context|
     context.response.content_type = "application/json"
diff --git a/src/sales_backend/address.cr b/src/authenticate/address.cr
similarity index 100%
rename from src/sales_backend/address.cr
rename to src/authenticate/address.cr
diff --git a/src/sales_backend/category.cr b/src/authenticate/category.cr
similarity index 100%
rename from src/sales_backend/category.cr
rename to src/authenticate/category.cr
diff --git a/src/sales_backend/http/category.cr b/src/authenticate/http/category.cr
similarity index 100%
rename from src/sales_backend/http/category.cr
rename to src/authenticate/http/category.cr
diff --git a/src/sales_backend/http/product.cr b/src/authenticate/http/product.cr
similarity index 100%
rename from src/sales_backend/http/product.cr
rename to src/authenticate/http/product.cr
diff --git a/src/sales_backend/http/user.cr b/src/authenticate/http/user.cr
similarity index 100%
rename from src/sales_backend/http/user.cr
rename to src/authenticate/http/user.cr
diff --git a/src/sales_backend/invoice.cr b/src/authenticate/invoice.cr
similarity index 100%
rename from src/sales_backend/invoice.cr
rename to src/authenticate/invoice.cr
diff --git a/src/sales_backend/invoice_line.cr b/src/authenticate/invoice_line.cr
similarity index 100%
rename from src/sales_backend/invoice_line.cr
rename to src/authenticate/invoice_line.cr
diff --git a/src/sales_backend/product.cr b/src/authenticate/product.cr
similarity index 100%
rename from src/sales_backend/product.cr
rename to src/authenticate/product.cr
diff --git a/src/sales_backend/user.cr b/src/authenticate/user.cr
similarity index 100%
rename from src/sales_backend/user.cr
rename to src/authenticate/user.cr
diff --git a/src/authenticate/version.cr b/src/authenticate/version.cr
new file mode 100644
index 0000000..bacfd77
--- /dev/null
+++ b/src/authenticate/version.cr
@@ -0,0 +1,3 @@
+module Authenticate
+	VERSION = "0.1.0"
+end
diff --git a/src/sales_backend/version.cr b/src/sales_backend/version.cr
deleted file mode 100644
index 79aaa5b..0000000
--- a/src/sales_backend/version.cr
+++ /dev/null
@@ -1,3 +0,0 @@
-module SalesBackend
-  VERSION = "0.1.0"
-end