diff --git a/.gitignore b/.gitignore
index c0df46a..6448f2e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -48,4 +48,5 @@ flycheck_*.el
 # network security
 /network-security.data
 
-
+# local files
+local/
diff --git a/README.org b/README.org
index 19278d2..2482d69 100644
--- a/README.org
+++ b/README.org
@@ -10,10 +10,20 @@ How to -safely- migrate to [[https://www.fsf.org][free software]] (free as in fr
 - [[./doc/migrate_gnulinux.org][Flashing a USB device to install a free software distritution]]
 - [[./doc/migracao_gnulinux.org][Criando um pendrive vivo com Parabola GNU-Linux]]
 
+** Package manager
+
+*** TODO [#A] package manager document
+
+- https://framatube.org/w/uubjKne6swPQpJWiQLfqxd
+
 ** System updates
 
  * [[./doc/issues_update_parabola.org][Invalid or corrupted package when updating Parabola GNU-linux]]
 
+** Users
+
+ * [[./doc/user_created.org][User creation and deletion]]
+
 ** Internet
 
  * [[./doc/browsers.org][Browsers - internet protocols]]
diff --git a/doc/hardware.org b/doc/hardware.org
index 8ef434b..bf93661 100644
--- a/doc/hardware.org
+++ b/doc/hardware.org
@@ -1,8 +1,9 @@
 #+date: 2023-03-15
 
-| Hardware             | Features                | Comments |
-|----------------------+-------------------------+----------|
-| [[https://minifree.org/][Computers]]            | Libreboot               |          |
-| [[https://monod.gitlab.io/harpasol/tienda/][Computers harpasol]]   | Libreboot               |          |
-| [[https://www.fsf.org/resources/hw][FSF on free hardware]] | Free hardware resources |          |
+| Hardware             | Features                       | Comments |
+|----------------------+--------------------------------+----------|
+| [[https://minifree.org/][Computers]]            | Libreboot                      |          |
+| [[https://monod.gitlab.io/harpasol/tienda/][Computers harpasol]]   | Libreboot                      |          |
+| [[https://www.fsf.org/resources/hw][FSF on free hardware]] | Free hardware resources        |          |
+| [[https://www.xyte.ch/mods/x230/][Custom computers]]     | Devices to customize computers |          |
 
diff --git a/doc/user_created.org b/doc/user_created.org
new file mode 100644
index 0000000..0ff3997
--- /dev/null
+++ b/doc/user_created.org
@@ -0,0 +1,21 @@
+#+date: 2023-03-20
+
+* How to create and delete users in a system
+
+Creating a user called "new_user"
+
+#+begin_example sh
+  adduser new_user
+#+end_example
+
+Creating a directory in ~/home~ for the new user:
+
+#+begin_example sh
+  chown -R new_user:new_user /home/new_user_home
+#+end_example
+
+Deleting the directory for the new user:
+
+#+begin_example sh
+  sudo deluser --remove-home new_user_home
+#+end_example