diff --git a/src/main.rs b/src/main.rs
index bc75fb3..9ab4dba 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -2,7 +2,7 @@ use std::path::PathBuf;
 use structopt::StructOpt;
 
 mod repo;
-mod tags;
+mod repository;
 mod ui;
 mod widget;
 
diff --git a/src/repository/dockerhub.rs b/src/repository/dockerhub.rs
new file mode 100644
index 0000000..373b874
--- /dev/null
+++ b/src/repository/dockerhub.rs
@@ -0,0 +1,101 @@
+use serde::Deserialize;
+
+use crate::repo;
+use crate::repository::Error;
+
+#[derive(Deserialize, Debug, Clone)]
+struct ImageDetails {
+    architecture: String,
+    size: usize,
+}
+
+#[derive(Deserialize, Clone)]
+pub struct Images {
+    images: Vec<ImageDetails>,
+    #[serde(rename(deserialize = "name"))]
+    tag_name: String,
+    last_updated: String,
+}
+
+impl Images {
+    pub fn convert(&self) -> super::Tag {
+        super::Tag {
+            name: self.tag_name.clone(),
+            last_updated: Some(self.last_updated.clone()),
+            details: self
+                .images
+                .iter()
+                .map(|d| super::TagDetails {
+                    arch: Some(d.architecture.clone()),
+                    size: Some(d.size.clone()),
+                })
+                .collect(),
+        }
+    }
+}
+
+#[derive(Deserialize)]
+pub struct DockerHub {
+    #[serde(rename(deserialize = "next"))]
+    next_page: Option<String>,
+    results: Vec<Images>,
+}
+
+impl DockerHub {
+    /// fetches tag information with a repository name in the form of organization/repository or library/repository in the case of official images from docker
+    pub fn new(repo: &str) -> Result<super::Repo, Error> {
+        let request = format!("https://hub.docker.com/v2/repositories/{}/tags", repo);
+        Self::with_url(&request)
+    }
+
+    /// fetches tag information from a url
+    pub fn with_url(url: &str) -> Result<super::Repo, Error> {
+        let response = match reqwest::blocking::get(url) {
+            Ok(result) => result,
+            Err(e) => return Err(Error::Fetching(format!("reqwest error: {}", e))),
+        };
+
+        //convert it to json
+        let tags = match response.json::<Self>() {
+            Ok(result) => result,
+            Err(e) => return Err(Error::Converting(format!("invalid json: {}", e))),
+        };
+
+        if tags.results.is_empty() {
+            return Err(Error::NoTagsFound);
+        }
+
+        Ok(super::Repo {
+            tags: tags.results.iter().map(|t| t.convert()).collect(),
+            next_page: tags.next_page,
+        })
+    }
+
+    /// checks the repo name and may add a prefix for official images
+    pub fn check_repo(name: &str) -> Result<String, Error> {
+        let repo = match repo::split_tag_from_repo(name) {
+            Err(e) => return Err(Error::Converting(format!("{}", e))),
+            Ok((name, _)) => name,
+        };
+
+        match repo::split_repo_without_tag(name) {
+            Ok(repo::Repo::Project(s)) => Ok(format!("library/{}", s)),
+            Ok(_) => Ok(repo.to_string()),
+            Err(e) => Err(Error::Converting(format!("{}", e))),
+        }
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use crate::repository::dockerhub::Repo;
+    #[test]
+    fn test_check_repo() {
+        assert_eq!(Repo::check_repo("nginx").unwrap(), "library/nginx");
+        assert_eq!(Repo::check_repo("library/nginx").unwrap(), "library/nginx");
+        assert_eq!(
+            Repo::check_repo("rocketchat/rocket.chat").unwrap(),
+            "rocketchat/rocket.chat"
+        );
+    }
+}
diff --git a/src/repository/mod.rs b/src/repository/mod.rs
new file mode 100644
index 0000000..91c182f
--- /dev/null
+++ b/src/repository/mod.rs
@@ -0,0 +1,149 @@
+pub mod dockerhub;
+
+use std::fmt;
+
+use chrono::DateTime;
+
+#[derive(Debug, PartialEq)]
+pub enum Error {
+    /// couldn't fetch json with reqwest
+    Fetching(String),
+    /// a serde error
+    Converting(String),
+    /// invalid repos show a valid json with 0 tags
+    NoTagsFound,
+}
+
+impl fmt::Display for Error {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match self {
+            Error::Fetching(s) => write!(f, "Fetching error: {}", s),
+            Error::Converting(s) => write!(f, "Converting error: {}", s),
+            Error::NoTagsFound => write!(f, "Given Repo has 0 tags. Is it valid?"),
+        }
+    }
+}
+
+#[derive(Clone)]
+pub struct TagDetails {
+    arch: Option<String>,
+    size: Option<usize>,
+}
+
+impl fmt::Display for TagDetails {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        let size = match self.size {
+            None => "".to_string(),
+            Some(s) => (s / 1024 / 1024).to_string(),
+        };
+        write!(
+            f,
+            "{}|{}MB",
+            self.arch.as_ref().unwrap_or(&"".to_string()),
+            size
+        )
+    }
+}
+
+#[derive(Clone)]
+pub struct Tag {
+    name: String,
+    details: Vec<TagDetails>,
+    last_updated: Option<String>,
+}
+
+impl Tag {
+    pub fn get_name(&self) -> &str {
+        &self.name
+    }
+
+    pub fn get_name_with_details(&self) -> String {
+        //architecture infos
+        let mut arch = String::new();
+        for image in self.details.iter().take(1) {
+            arch.push_str(&format!("{}", image));
+        }
+        for image in self.details.iter().skip(1) {
+            arch.push_str(&format!(", {}", image));
+        }
+
+        let dif = match &self.last_updated {
+            None => "".to_string(),
+            Some(last_updated) => {
+                let now = chrono::Utc::now();
+                let rfc3339 = DateTime::parse_from_rfc3339(last_updated).unwrap();
+                let dif = now - rfc3339.with_timezone(&chrono::Utc);
+                format!("{}", format_time_nice(dif))
+            }
+        };
+        format!("{} vor {} [{}]", self.name, dif, arch)
+    }
+}
+
+pub struct Repo {
+    // name: String,
+    tags: Vec<Tag>,
+    next_page: Option<String>,
+}
+
+impl Repo {
+    pub fn new(repo: &str) -> Result<Self, Error> {
+        use crate::repo::Repo;
+        let (registry, repo) = match crate::repo::split_repo_without_tag(repo) {
+            Ok(Repo::WithServer(reg, org, pro)) => (Some(reg), format!("{}/{}", org, pro)),
+            Ok(Repo::WithOrga(org, pro)) => (None, format!("{}/{}", org, pro)),
+            Ok(Repo::Project(pro)) => (None, format!("library/{}", pro)),
+            Err(e) => return Err(Error::Converting(format!("{}", e))),
+        };
+
+        // if &registry == "ghcr.io" {
+        //     //
+        // } else {
+        //     dockerhub::DockerHub::new(repo)
+        // }
+
+        dockerhub::DockerHub::new(&repo)
+    }
+
+    pub fn with_url(url: &str) -> Result<Self, Error> {
+        //TODO fix for other registries
+        dockerhub::DockerHub::with_url(url)
+    }
+
+    pub fn get_tags(&self) -> &Vec<Tag> {
+        &self.tags
+    }
+
+    pub fn next_page(&self) -> Option<Self> {
+        match &self.next_page {
+            Some(url) => match Self::with_url(url) {
+                Ok(tags) => Some(tags),
+                Err(_) => None,
+            },
+            None => None,
+        }
+    }
+}
+
+/// converts a given duration to a readable string
+fn format_time_nice(time: chrono::Duration) -> String {
+    if time.num_weeks() == 52 {
+        format!("{} Jahr", (time.num_weeks() / 52) as i32)
+    } else if time.num_weeks() > 103 {
+        format!("{} Jahren", (time.num_weeks() / 52) as i32)
+    } else if time.num_days() == 1 {
+        format!("{} Tag", time.num_days())
+    } else if time.num_days() > 1 {
+        format!("{} Tagen", time.num_days())
+    } else if time.num_hours() == 1 {
+        format!("{} Stunde", time.num_hours())
+    } else if time.num_hours() > 1 {
+        format!("{} Stunden", time.num_hours())
+    } else if time.num_minutes() == 1 {
+        format!("{} Minute", time.num_minutes())
+    } else if time.num_minutes() > 1 {
+        format!("{} Minuten", time.num_minutes())
+    } else {
+        format!("{} Sekunden", time.num_seconds())
+    }
+}
diff --git a/src/tags.rs b/src/tags.rs
deleted file mode 100644
index fb5a40f..0000000
--- a/src/tags.rs
+++ /dev/null
@@ -1,168 +0,0 @@
-use std::fmt;
-
-use crate::repo;
-use chrono::DateTime;
-use serde::Deserialize;
-
-#[derive(Deserialize, Debug, Clone)]
-struct ImageDetails {
-    architecture: String,
-    size: usize,
-}
-
-impl fmt::Display for ImageDetails {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        write!(f, "{}|{}MB", self.architecture, self.size / 1024 / 1024)
-    }
-}
-
-#[derive(Deserialize, Clone)]
-pub struct Images {
-    images: Vec<ImageDetails>,
-    #[serde(rename(deserialize = "name"))]
-    pub tag_name: String,
-    last_updated: String,
-}
-
-impl fmt::Display for Images {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        //architecture infos
-        let mut arch = String::new();
-        for image in self.images.iter().take(1) {
-            arch.push_str(&format!("{}", image));
-        }
-        for image in self.images.iter().skip(1) {
-            arch.push_str(&format!(", {}", image));
-        }
-
-        let now = chrono::Utc::now();
-        let rfc3339 = DateTime::parse_from_rfc3339(&self.last_updated).unwrap();
-        let dif = now - rfc3339.with_timezone(&chrono::Utc);
-        write!(
-            f,
-            "{} vor {} [{}]",
-            self.tag_name,
-            format_time_nice(dif),
-            arch
-        )
-    }
-}
-
-#[derive(Deserialize)]
-pub struct Tags {
-    count: usize,
-    #[serde(rename(deserialize = "next"))]
-    pub next_page: Option<String>,
-    pub results: Vec<Images>,
-}
-
-#[derive(Debug, PartialEq)]
-pub enum Error {
-    /// couldn't fetch json with reqwest
-    Fetching(String),
-    /// a serde error
-    Converting(String),
-    /// invalid repos show a valid json with 0 tags
-    NoTagsFound,
-}
-
-impl fmt::Display for Error {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        match self {
-            Error::Fetching(s) => write!(f, "Fetching error: {}", s),
-            Error::Converting(s) => write!(f, "Converting error: {}", s),
-            Error::NoTagsFound => write!(f, "Given Repo has 0 tags. Is it valid?"),
-        }
-    }
-}
-
-impl Tags {
-    /// fetches tag information with a repository name in the form of organization/repository or library/repository in the case of official images from docker
-    pub fn new(repo: String) -> Result<Self, Error> {
-        let request = format!("https://hub.docker.com/v2/repositories/{}/tags", repo);
-        Self::with_url(&request)
-    }
-
-    /// fetches tag information from a url
-    fn with_url(url: &str) -> Result<Self, Error> {
-        let res = match reqwest::blocking::get(url) {
-            Ok(result) => result,
-            Err(e) => return Err(Error::Fetching(format!("reqwest error: {}", e))),
-        };
-
-        //convert it to json
-        let raw = res.text().unwrap();
-        let tags: Self = match serde_json::from_str(&raw) {
-            Ok(result) => result,
-            Err(e) => return Err(Error::Converting(format!("invalid json: {}", e))),
-        };
-
-        if tags.count == 0 {
-            return Err(Error::NoTagsFound);
-        }
-
-        Ok(tags)
-    }
-
-    /// checks the repo name and may add a prefix for official images
-    pub fn check_repo(name: &str) -> Result<String, Error> {
-        let repo = match repo::split_tag_from_repo(name) {
-            Err(e) => return Err(Error::Converting(format!("{}", e))),
-            Ok((name, _)) => name,
-        };
-
-        match repo::split_repo_without_tag(name) {
-            Ok(repo::Repo::Project(s)) => Ok(format!("library/{}", s)),
-            Ok(_) => Ok(repo.to_string()),
-            Err(e) => Err(Error::Converting(format!("{}", e))),
-        }
-    }
-
-    /// returns tags of next page
-    pub fn next_page(&self) -> Option<Self> {
-        match &self.next_page {
-            Some(url) => match Self::with_url(url) {
-                Ok(tags) => Some(tags),
-                Err(_) => None,
-            },
-            None => None,
-        }
-    }
-}
-
-/// converts a given duration to a readable string
-fn format_time_nice(time: chrono::Duration) -> String {
-    if time.num_weeks() == 52 {
-        format!("{} Jahr", (time.num_weeks() / 52) as i32)
-    } else if time.num_weeks() > 103 {
-        format!("{} Jahren", (time.num_weeks() / 52) as i32)
-    } else if time.num_days() == 1 {
-        format!("{} Tag", time.num_days())
-    } else if time.num_days() > 1 {
-        format!("{} Tagen", time.num_days())
-    } else if time.num_hours() == 1 {
-        format!("{} Stunde", time.num_hours())
-    } else if time.num_hours() > 1 {
-        format!("{} Stunden", time.num_hours())
-    } else if time.num_minutes() == 1 {
-        format!("{} Minute", time.num_minutes())
-    } else if time.num_minutes() > 1 {
-        format!("{} Minuten", time.num_minutes())
-    } else {
-        format!("{} Sekunden", time.num_seconds())
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use crate::tags::Tags;
-    #[test]
-    fn test_check_repo() {
-        assert_eq!(Tags::check_repo("nginx").unwrap(), "library/nginx");
-        assert_eq!(Tags::check_repo("library/nginx").unwrap(), "library/nginx");
-        assert_eq!(
-            Tags::check_repo("rocketchat/rocket.chat").unwrap(),
-            "rocketchat/rocket.chat"
-        );
-    }
-}
diff --git a/src/ui/default.rs b/src/ui/default.rs
index e143e4a..7a19cde 100644
--- a/src/ui/default.rs
+++ b/src/ui/default.rs
@@ -7,6 +7,7 @@ use tui::backend::TermionBackend;
 use tui::layout::{Constraint, Direction, Layout};
 use tui::Terminal;
 
+use crate::repository::dockerhub;
 use crate::widget::info;
 use crate::widget::repo_entry;
 use crate::widget::service_switcher;
@@ -156,7 +157,7 @@ impl Ui {
                         match ui.services.extract_repo() {
                             Err(e) => ui.info.set_info(&format!("{}", e)),
                             Ok(s) => {
-                                let repo = match crate::tags::Tags::check_repo(&s) {
+                                let repo = match dockerhub::DockerHub::check_repo(&s) {
                                     Err(e) => {
                                         ui.info.set_info(&format!("{}", e));
                                         continue;
@@ -177,7 +178,7 @@ impl Ui {
                         match ui.services.extract_repo() {
                             Err(e) => ui.info.set_info(&format!("{}", e)),
                             Ok(s) => {
-                                let repo = match crate::tags::Tags::check_repo(&s) {
+                                let repo = match dockerhub::DockerHub::check_repo(&s) {
                                     Err(e) => {
                                         ui.info.set_info(&format!("{}", e));
                                         continue;
diff --git a/src/widget/tag_list.rs b/src/widget/tag_list.rs
index 656fd04..5f86b4d 100644
--- a/src/widget/tag_list.rs
+++ b/src/widget/tag_list.rs
@@ -4,7 +4,7 @@ use termion::event::Key;
 use tui::style::{Color, Style};
 use tui::widgets::{Block, Borders, List, ListState};
 
-use crate::tags;
+use crate::repository;
 
 pub enum Error {
     NoneSelected,
@@ -24,7 +24,7 @@ impl fmt::Display for Error {
 
 enum Line {
     Status(String),
-    Image(tags::Images),
+    Image(repository::Tag),
     NextPage(String),
 }
 
@@ -32,7 +32,7 @@ impl fmt::Display for Line {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         match self {
             Line::Status(s) => write!(f, "{}", s),
-            Line::Image(i) => write!(f, "{}", i),
+            Line::Image(i) => write!(f, "{}", i.get_name_with_details()),
             Line::NextPage(s) => write!(f, "{}", s),
         }
     }
@@ -41,7 +41,7 @@ impl fmt::Display for Line {
 pub struct TagList {
     lines: Vec<Line>,
     state: ListState,
-    tags: Option<tags::Tags>,
+    tags: Option<repository::Repo>,
 }
 
 impl TagList {
@@ -54,15 +54,15 @@ impl TagList {
     }
 
     pub fn with_repo_name(repo: String) -> Self {
-        match tags::Tags::new(repo) {
+        match repository::Repo::new(&repo) {
             Ok(tags) => Self::with_tags(tags),
             Err(_) => Self::with_status("input repo was not found"),
         }
     }
 
-    pub fn with_tags(mut tags: tags::Tags) -> Self {
+    pub fn with_tags(mut tags: repository::Repo) -> Self {
         let mut lines: Vec<Line> = tags
-            .results
+            .get_tags()
             .iter()
             .map(|r| Line::Image(r.clone()))
             .collect();
@@ -136,7 +136,7 @@ impl TagList {
             None => Err(Error::NoneSelected),
             Some(i) => match &self.lines[i] {
                 Line::Status(_) => Err(Error::SelectedStatus),
-                Line::Image(i) => Ok(i.tag_name.clone()),
+                Line::Image(i) => Ok(i.get_name().to_string()),
                 Line::NextPage(_) => {
                     self.load_next_page();
                     Err(Error::NextPageSelected)
@@ -158,12 +158,17 @@ impl TagList {
                     let next_page = self.lines.pop();
 
                     //add tags
-                    for image in &self.tags.as_ref().unwrap().results {
-                        self.lines.push(Line::Image(image.clone()));
+                    match &self.tags {
+                        None => (),
+                        Some(tags) => {
+                            for image in tags.get_tags().iter() {
+                                self.lines.push(Line::Image(image.clone()));
+                            }
+                        }
                     }
 
                     //readd next page
-                    match self.tags.as_ref().unwrap().next_page {
+                    match self.tags.as_ref().unwrap().next_page() {
                         None => (),
                         Some(_) => self.lines.push(next_page.unwrap()),
                     }