diff --git a/app/src/lib.rs b/app/src/lib.rs
index 731c6e8..0f8827a 100644
--- a/app/src/lib.rs
+++ b/app/src/lib.rs
@@ -60,12 +60,14 @@ impl Model {
     }
 }
 
+/// The input fields of the login dialog.
 #[derive(Default, Debug)]
 struct LoginForm {
     username: ElRef<web_sys::HtmlInputElement>,
     password: ElRef<web_sys::HtmlInputElement>,
 }
 
+/// All information regarding the current location
 #[derive(Debug)]
 struct Location {
     host: String,
@@ -84,6 +86,7 @@ impl Location {
     }
 }
 
+/// Get the url from the address bar.
 #[must_use]
 pub fn get_host() -> String {
     window()
@@ -92,6 +95,9 @@ pub fn get_host() -> String {
         .expect("Failed to extract the host of the url")
 }
 
+/// The pages:
+///   * Home for listing of links
+///   * ListUsers for listing of users
 #[derive(Debug)]
 enum Page {
     Home(pages::list_links::Model),
@@ -137,6 +143,8 @@ impl Page {
 // ------ ------
 //    Update
 // ------ ------
+
+/// The messages regarding authentication and settings.
 #[derive(Clone)]
 pub enum Msg {
     UrlChanged(subs::UrlChanged),
@@ -154,6 +162,7 @@ pub enum Msg {
     LanguageChanged(Lang),
 }
 
+/// react to settings and authentication changes.
 fn update(msg: Msg, model: &mut Model, orders: &mut impl Orders<Msg>) {
     match msg {
         Msg::UrlChanged(url) => {
@@ -222,6 +231,7 @@ fn update(msg: Msg, model: &mut Model, orders: &mut impl Orders<Msg>) {
     }
 }
 
+/// switch the language
 fn change_language(l: Lang, orders: &mut impl Orders<Msg>) {
     orders.perform_cmd(async move {
         // create request
@@ -241,6 +251,7 @@ fn change_language(l: Lang, orders: &mut impl Orders<Msg>) {
     });
 }
 
+/// logout on the server
 fn logout(orders: &mut impl Orders<Msg>) {
     orders.perform_cmd(async {
         let request = Request::new("/admin/logout/");
@@ -249,6 +260,7 @@ fn logout(orders: &mut impl Orders<Msg>) {
     });
 }
 
+/// login using username and password
 fn login_user(model: &mut Model, orders: &mut impl Orders<Msg>) {
     model.user = Loadable::Loading;
     let data = model.login_data.clone();
@@ -272,6 +284,7 @@ fn login_user(model: &mut Model, orders: &mut impl Orders<Msg>) {
     });
 }
 
+/// to create urls for different subpages
 pub struct Urls<'a> {
     base_url: std::borrow::Cow<'a, Url>,
 }
@@ -356,6 +369,7 @@ fn view_content(page: &Page, url: &Url, user: &User) -> Node<Msg> {
     ]
 }
 
+/// If not logged in render the login form
 fn view_login(lang: &I18n, model: &Model) -> Node<Msg> {
     let t = move |key: &str| lang.translate(key, None);
 
diff --git a/app/src/pages/home.rs b/app/src/pages/home.rs
deleted file mode 100644
index 8ff0e27..0000000
--- a/app/src/pages/home.rs
+++ /dev/null
@@ -1,6 +0,0 @@
-use seed::{div, prelude::*};
-
-#[must_use]
-pub fn view<Ms>() -> Node<Ms> {
-    div!["List Links"]
-}
diff --git a/app/src/pages/list_links.rs b/app/src/pages/list_links.rs
index a560566..c6638c5 100644
--- a/app/src/pages/list_links.rs
+++ b/app/src/pages/list_links.rs
@@ -1,3 +1,4 @@
+//! List all the links the own links editable or if an admin is logged in all links editable.
 use enum_map::EnumMap;
 use fluent::fluent_args;
 use image::{DynamicImage, ImageOutputFormat, Luma};
@@ -60,6 +61,7 @@ impl Model {
     }
 }
 
+/// There can allways be only one dialog.
 #[derive(Debug, Clone)]
 enum Dialog {
     EditLink {
@@ -71,6 +73,7 @@ enum Dialog {
     None,
 }
 
+/// A qr-code with `new` for creating a blob url and `Drop` for releasing the blob url.
 #[derive(Debug, Clone)]
 pub struct QrGuard {
     svg: String,
@@ -98,17 +101,20 @@ impl QrGuard {
 }
 
 impl Drop for QrGuard {
+    /// release the blob url
     fn drop(&mut self) {
         web_sys::Url::revoke_object_url(&self.url)
             .unwrap_or_else(|_| (log!("Failed to release url!")));
     }
 }
 
+/// Filter one column of the row.
 #[derive(Default, Debug, Clone)]
 struct FilterInput {
     filter_input: ElRef<web_sys::HtmlInputElement>,
 }
 
+/// A message can either edit or query. (or set a dialog)
 #[derive(Clone)]
 pub enum Msg {
     Query(QueryMsg),    // Messages related to querying links
@@ -117,6 +123,7 @@ pub enum Msg {
     SetMessage(String), // Set a message to the user
 }
 
+/// All the messages related to requesting information from the server.
 #[derive(Clone)]
 pub enum QueryMsg {
     Fetch,
@@ -127,7 +134,8 @@ pub enum QueryMsg {
     TargetFilterChanged(String),
     AuthorFilterChanged(String),
 }
-/// All the messages on link editing
+
+/// All the messages on storing information on the server.
 #[derive(Debug, Clone)]
 pub enum EditMsg {
     EditSelected(LinkDelta),
@@ -151,7 +159,7 @@ fn clear_all(model: &mut Model) {
     model.dialog = Dialog::None;
 }
 
-/// React to environment changes
+/// Split the update to Query updates and Edit updates.
 pub fn update(msg: Msg, model: &mut Model, orders: &mut impl Orders<Msg>) {
     match msg {
         Msg::Query(msg) => process_query_messages(msg, model, orders),
@@ -706,10 +714,12 @@ fn edit_or_create_link<F: Fn(&str) -> String>(
     ]
 }
 
+/// generate a qr-code for a code
 fn generate_qr_from_code(code: &str) -> String {
     generate_qr_from_link(&format!("https://{}/{}", get_host(), code))
 }
 
+/// generate a svg qr-code for a url
 fn generate_qr_from_link(url: &str) -> String {
     if let Ok(qr) = QrCode::with_error_correction_level(&url, qrcode::EcLevel::L) {
         let svg = qr
@@ -720,6 +730,7 @@ fn generate_qr_from_link(url: &str) -> String {
             .build();
         svg
     } else {
+        // should never (only on very huge codes) happen.
         "".to_string()
     }
 }
@@ -733,6 +744,7 @@ fn close_button() -> Node<Msg> {
     ]
 }
 
+/// generate a png qr-code for a url
 fn generate_qr_png(code: &str) -> Vec<u8> {
     let qr = QrCode::with_error_correction_level(
         &format!("http://{}/{}", get_host(), code),
diff --git a/app/src/pages/list_users.rs b/app/src/pages/list_users.rs
index 55d9408..3dcb313 100644
--- a/app/src/pages/list_users.rs
+++ b/app/src/pages/list_users.rs
@@ -97,6 +97,8 @@ pub enum UserEditMsg {
 /*
  * update
  */
+
+/// Split the update to Query updates and Edit updates
 pub fn update(msg: Msg, model: &mut Model, orders: &mut impl Orders<Msg>) {
     match msg {
         Msg::Query(msg) => process_query_messages(msg, model, orders),
@@ -107,7 +109,7 @@ pub fn update(msg: Msg, model: &mut Model, orders: &mut impl Orders<Msg>) {
     }
 }
 
-/// Update all
+/// Process all updates related to getting data from the server.
 pub fn process_query_messages(msg: UserQueryMsg, model: &mut Model, orders: &mut impl Orders<Msg>) {
     match msg {
         UserQueryMsg::Fetch => {
@@ -170,6 +172,7 @@ pub fn process_query_messages(msg: UserQueryMsg, model: &mut Model, orders: &mut
     }
 }
 
+/// Load the list of users from the server.
 fn load_users(data: UserRequestForm, orders: &mut impl Orders<Msg>) {
     orders.perform_cmd(async {
         let data = data;
@@ -200,6 +203,7 @@ fn load_users(data: UserRequestForm, orders: &mut impl Orders<Msg>) {
     });
 }
 
+/// Process all the messages related to editing users.
 pub fn process_user_edit_messages(
     msg: UserEditMsg,
     model: &mut Model,
@@ -233,7 +237,7 @@ pub fn process_user_edit_messages(
             let data = model
                 .user_edit
                 .take()
-                .expect("A user should allways be there on save"); // complicated way to move into the closure
+                .expect("A user should allways be there on save");
             log!("Saving User: ", &data.username);
             save_user(data, orders);
         }
@@ -251,6 +255,7 @@ pub fn process_user_edit_messages(
     }
 }
 
+/// Update the role of a user - this toggles between admin and regular.
 fn update_privileges(user: UserDelta, orders: &mut impl Orders<Msg>) {
     orders.perform_cmd(async {
         let data = user;
@@ -281,6 +286,7 @@ fn update_privileges(user: UserDelta, orders: &mut impl Orders<Msg>) {
     });
 }
 
+/// Save a new user or edit an existing user
 fn save_user(user: UserDelta, orders: &mut impl Orders<Msg>) {
     orders.perform_cmd(async {
         let data = user;
@@ -360,6 +366,7 @@ pub fn view(model: &Model, logged_in_user: &User) -> Node<Msg> {
     ]
 }
 
+/// View the headlines of the table
 fn view_user_table_head<F: Fn(&str) -> String>(t: F) -> Node<Msg> {
     tr![
         th![
@@ -384,6 +391,7 @@ fn view_user_table_head<F: Fn(&str) -> String>(t: F) -> Node<Msg> {
     ]
 }
 
+/// Display the filterboxes below the headlines
 fn view_user_table_filter_input<F: Fn(&str) -> String>(model: &Model, t: F) -> Node<Msg> {
     tr![
         C!["filters"],
@@ -426,6 +434,7 @@ fn view_user_table_filter_input<F: Fn(&str) -> String>(model: &Model, t: F) -> N
     ]
 }
 
+/// Display one user-line of the table
 fn view_user<F: Fn(&str) -> String>(l: &User, logged_in_user: &User, t: F) -> Node<Msg> {
     let user = UserDelta::from(l.clone());
     tr![
@@ -471,6 +480,7 @@ fn view_user<F: Fn(&str) -> String>(l: &User, logged_in_user: &User, t: F) -> No
     ]
 }
 
+/// display the edit and create dialog
 fn edit_or_create_user<F: Fn(&str) -> String>(l: UserDelta, t: F) -> Node<Msg> {
     let user = l;
     let headline: Node<Msg> = match &user.role {
diff --git a/app/src/pages/mod.rs b/app/src/pages/mod.rs
index 2db85a5..c1273c2 100644
--- a/app/src/pages/mod.rs
+++ b/app/src/pages/mod.rs
@@ -1,5 +1,4 @@
 //! Containing the individual pages for the admin app so far one to list the links and one to list the users.
-pub mod home;
 pub mod list_links;
 pub mod list_users;
 
diff --git a/shared/src/apirequests/general.rs b/shared/src/apirequests/general.rs
index 4a3a4b4..0e0a230 100644
--- a/shared/src/apirequests/general.rs
+++ b/shared/src/apirequests/general.rs
@@ -1,6 +1,8 @@
+//! The more generic request datatypes
 use std::ops::Deref;
 
 use serde::{Deserialize, Serialize};
+/// Filter one column according to the containing string.
 #[derive(Clone, Deserialize, Serialize, Debug, Default)]
 pub struct Filter {
     pub sieve: String,
@@ -14,18 +16,21 @@ impl Deref for Filter {
     }
 }
 
+/// Possible order directions
 #[derive(Clone, Deserialize, Serialize, PartialEq, Eq, Debug)]
 pub enum Ordering {
     Ascending,
     Descending,
 }
 
+/// An operation on a column
 #[derive(Clone, Deserialize, Serialize, Debug)]
 pub struct Operation<T, V> {
     pub column: T,
     pub value: V,
 }
 
+/// To differentiate between creating a new record and editing.
 #[derive(Clone, Deserialize, Serialize, Debug, PartialEq, Eq)]
 pub enum EditMode {
     Create,
@@ -38,11 +43,13 @@ impl Default for EditMode {
     }
 }
 
+/// When a message is sent between client and server (like for a dialog).
 #[derive(Clone, Deserialize, Serialize, Debug)]
 pub struct Message {
     pub message: String,
 }
 
+/// Send a message on success and also one on error.
 #[derive(Clone, Deserialize, Serialize, Debug)]
 pub enum Status {
     Success(Message),
diff --git a/shared/src/apirequests/links.rs b/shared/src/apirequests/links.rs
index 23b9892..6c6f2b1 100644
--- a/shared/src/apirequests/links.rs
+++ b/shared/src/apirequests/links.rs
@@ -1,3 +1,5 @@
+//! types for link requesting and saving.
+
 use enum_map::{Enum, EnumMap};
 use serde::{Deserialize, Serialize};
 
@@ -5,7 +7,7 @@ use crate::datatypes::{FullLink, Link};
 
 use super::general::{EditMode, Filter, Operation, Ordering};
 
-/// A generic list returntype containing the User and a Vec containing e.g. Links or Users
+/// Request a list of users respecting the filter and ordering.
 #[derive(Clone, Deserialize, Serialize, Debug)]
 pub struct LinkRequestForm {
     pub filter: EnumMap<LinkOverviewColumns, Filter>,
@@ -23,7 +25,7 @@ impl Default for LinkRequestForm {
     }
 }
 
-/// The Struct that is responsible for creating and editing users.
+/// The Struct that is responsible for creating and editing links.
 #[derive(Default, Debug, Clone, Serialize, Deserialize)]
 pub struct LinkDelta {
     pub edit: EditMode,
@@ -36,7 +38,7 @@ pub struct LinkDelta {
 }
 
 impl From<Link> for LinkDelta {
-    /// Automatically create a `UserDelta` from a User.
+    /// Automatically create a `LinkDelta` from a Link.
     fn from(l: Link) -> Self {
         Self {
             edit: EditMode::Edit,
@@ -51,7 +53,7 @@ impl From<Link> for LinkDelta {
 }
 
 impl From<FullLink> for LinkDelta {
-    /// Automatically create a `UserDelta` from a User.
+    /// Automatically create a `LinkDelta` from a FullLink.
     fn from(l: FullLink) -> Self {
         Self {
             edit: EditMode::Edit,
@@ -65,6 +67,7 @@ impl From<FullLink> for LinkDelta {
     }
 }
 
+/// An enumeration of the filterable columns
 #[derive(Clone, Deserialize, Serialize, Debug, PartialEq, Eq, Hash, Enum)]
 pub enum LinkOverviewColumns {
     Code,
@@ -74,17 +77,20 @@ pub enum LinkOverviewColumns {
     Statistics,
 }
 
+/// A struct to request a qr-code from the server
 #[derive(Clone, Deserialize, Serialize, Debug, PartialEq, Eq)]
 pub struct QrCodeRequest {
     pub link_id: String,
     pub format: QrCodeFormat,
 }
 
+/// The response to a qr-request
 #[derive(Clone, Deserialize, Serialize, Debug, PartialEq, Eq)]
 pub struct SvgQrCodeResponse {
     pub svg: String,
 }
 
+/// Available formats of qr-codes
 #[derive(Clone, Deserialize, Serialize, Debug, PartialEq, Eq)]
 pub enum QrCodeFormat {
     Svg,
diff --git a/shared/src/apirequests/mod.rs b/shared/src/apirequests/mod.rs
index a8f4714..6c3c869 100644
--- a/shared/src/apirequests/mod.rs
+++ b/shared/src/apirequests/mod.rs
@@ -1,3 +1,4 @@
+//! This module contains the structs for api requests.
 pub mod general;
 pub mod links;
 pub mod users;
diff --git a/shared/src/apirequests/users.rs b/shared/src/apirequests/users.rs
index 5bef4ce..e77143a 100644
--- a/shared/src/apirequests/users.rs
+++ b/shared/src/apirequests/users.rs
@@ -1,3 +1,4 @@
+//! Types for user requesting and saving
 use enum_map::{Enum, EnumMap};
 use serde::{Deserialize, Serialize};
 
@@ -5,6 +6,7 @@ use crate::datatypes::User;
 
 use super::general::{EditMode, Filter, Operation, Ordering};
 
+/// Request an ordered and filtered list of users from the server.
 #[derive(Clone, Deserialize, Serialize, Debug)]
 pub struct UserRequestForm {
     // The filters up to one for each column
@@ -25,6 +27,7 @@ impl Default for UserRequestForm {
     }
 }
 
+/// Data to login.
 #[derive(Debug, Deserialize, Default, Serialize, Clone)]
 pub struct LoginUser {
     pub username: String,
@@ -65,7 +68,7 @@ pub enum UserOverviewColumns {
     Username,
 }
 
-/// The possible roles a user could have.
+/// The possible roles a user could have. They are stored as i64 in the database
 #[derive(Debug, Clone, Serialize, Deserialize, PartialEq, Copy)]
 pub enum Role {
     NotAuthenticated,
diff --git a/shared/src/datatypes.rs b/shared/src/datatypes.rs
index aa250da..9a67d5e 100644
--- a/shared/src/datatypes.rs
+++ b/shared/src/datatypes.rs
@@ -1,3 +1,4 @@
+//! The more generic datatypes used in pslink
 use std::ops::Deref;
 
 use serde::{Deserialize, Serialize, Serializer};
@@ -19,6 +20,7 @@ pub struct FullLink {
     pub clicks: Count,
 }
 
+/// A User of the pslink service
 #[derive(PartialEq, Serialize, Deserialize, Clone, Debug)]
 pub struct User {
     pub id: i64,
@@ -29,6 +31,7 @@ pub struct User {
     pub language: Lang,
 }
 
+/// A short url of the link service
 #[derive(Serialize, Deserialize, Clone, Debug)]
 pub struct Link {
     pub id: i64,
@@ -39,10 +42,13 @@ pub struct Link {
     pub created_at: chrono::NaiveDateTime,
 }
 
+/// When statistics are counted
 #[derive(Serialize, Deserialize, Clone, Debug)]
 pub struct Count {
     pub number: i32,
 }
+
+/// Everytime a shor url is clicked record it for statistical evaluation.
 #[derive(Serialize, Debug)]
 pub struct Click {
     pub id: i64,
@@ -50,6 +56,7 @@ pub struct Click {
     pub created_at: chrono::NaiveDateTime,
 }
 
+/// The Password: Display, Debug and serialize do not include the Password to prevent leaks of sensible information in logs or similar.
 #[derive(PartialEq, Clone, Deserialize)]
 #[serde(from = "String")]
 pub struct Secret {
@@ -92,6 +99,7 @@ impl std::fmt::Display for Secret {
     }
 }
 
+/// Loadable is a type that has not been loaded but will be in future. It can be used to indicate the loading process.
 #[derive(Debug, Serialize, Deserialize, Clone)]
 pub enum Loadable<T> {
     Data(Option<T>),