diff --git a/bin/domain/imag-bookmark/Cargo.toml b/bin/domain/imag-bookmark/Cargo.toml
index b66a6f69..7e039df1 100644
--- a/bin/domain/imag-bookmark/Cargo.toml
+++ b/bin/domain/imag-bookmark/Cargo.toml
@@ -24,6 +24,7 @@ log = "0.4.6"
 toml = "0.5.1"
 toml-query = "0.9.2"
 failure = "0.1.5"
+resiter = "0.4.0"
 
 libimagrt        = { version = "0.10.0", path = "../../../lib/core/libimagrt" }
 libimagerror     = { version = "0.10.0", path = "../../../lib/core/libimagerror" }
diff --git a/bin/domain/imag-bookmark/src/lib.rs b/bin/domain/imag-bookmark/src/lib.rs
index bfa08b10..537c6f4d 100644
--- a/bin/domain/imag-bookmark/src/lib.rs
+++ b/bin/domain/imag-bookmark/src/lib.rs
@@ -39,6 +39,7 @@ extern crate clap;
 extern crate toml;
 extern crate toml_query;
 #[macro_use] extern crate failure;
+extern crate resiter;
 
 extern crate libimagbookmark;
 extern crate libimagrt;
@@ -47,12 +48,13 @@ extern crate libimagutil;
 extern crate libimagentrylink;
 
 use std::io::Write;
-use std::process::exit;
 use std::ops::DerefMut;
 
 use toml_query::read::TomlValueReadTypeExt;
 use failure::Error;
+use failure::err_msg;
 use failure::Fallible as Result;
+use resiter::AndThen;
 use clap::App;
 
 use libimagrt::runtime::Runtime;
@@ -60,10 +62,6 @@ use libimagrt::application::ImagApplication;
 use libimagbookmark::collection::BookmarkCollection;
 use libimagbookmark::collection::BookmarkCollectionStore;
 use libimagbookmark::link::Link as BookmarkLink;
-use libimagerror::trace::{MapErrTrace, trace_error};
-use libimagerror::io::ToExitCode;
-use libimagerror::exit::ExitUnwrap;
-use libimagutil::debug_result::DebugResult;
 use libimagentrylink::linkable::Linkable;
 
 mod ui;
@@ -75,24 +73,20 @@ mod ui;
 pub enum ImagBookmark {}
 impl ImagApplication for ImagBookmark {
     fn run(rt: Runtime) -> Result<()> {
-        if let Some(name) = rt.cli().subcommand_name() {
-            debug!("Call {}", name);
-            match name {
-                "add"        => add(&rt),
-                "collection" => collection(&rt),
-                "list"       => list(&rt),
-                "remove"     => remove(&rt),
-                other        => {
-                    debug!("Unknown command");
-                    let _ = rt.handle_unknown_subcommand("imag-bookmark", other, rt.cli())
-                        .map_err_trace_exit_unwrap()
-                        .code()
-                        .map(::std::process::exit);
-                },
-            }
+        match rt.cli().subcommand_name().ok_or_else(|| err_msg("No subcommand called"))? {
+            "add"        => add(&rt),
+            "collection" => collection(&rt),
+            "list"       => list(&rt),
+            "remove"     => remove(&rt),
+            other        => {
+                debug!("Unknown command");
+                if rt.handle_unknown_subcommand("imag-bookmark", other, rt.cli())?.success() {
+                    Ok(())
+                } else {
+                    Err(err_msg("Failed to handle unknown subcommand"))
+                }
+            },
         }
-
-        Ok(())
     }
 
     fn build_cli<'a>(app: App<'a, 'a>) -> App<'a, 'a> {
@@ -112,131 +106,107 @@ impl ImagApplication for ImagBookmark {
     }
 }
 
-fn add(rt: &Runtime) {
+fn add(rt: &Runtime) -> Result<()> {
     let scmd = rt.cli().subcommand_matches("add").unwrap();
-    let coll = get_collection_name(rt, "add", "collection");
+    let coll = get_collection_name(rt, "add", "collection")?;
 
-    let mut collection = BookmarkCollectionStore::get(rt.store(), &coll)
-        .map_err_trace_exit_unwrap()
-        .ok_or_else(|| format_err!("No bookmark collection '{}' found", coll))
-        .map_err_trace_exit_unwrap();
+    let mut collection = BookmarkCollectionStore::get(rt.store(), &coll)?
+        .ok_or_else(|| format_err!("No bookmark collection '{}' found", coll))?;
 
-    rt.report_touched(collection.get_location()).unwrap_or_exit();
+    rt.report_touched(collection.get_location())?;
 
-    for url in scmd.values_of("urls").unwrap() { // unwrap saved by clap
-        let new_ids = BookmarkCollection::add_link(collection.deref_mut(), rt.store(), BookmarkLink::from(url))
-            .map_err_trace_exit_unwrap();
-
-        rt.report_all_touched(new_ids.into_iter()).unwrap_or_exit();
-    }
-
-    info!("Ready");
+    scmd.values_of("urls")
+        .unwrap()
+        .into_iter()
+        .map(|url| {
+            let new_ids = BookmarkCollection::add_link(collection.deref_mut(), rt.store(), BookmarkLink::from(url))?;
+            rt.report_all_touched(new_ids.into_iter()).map_err(Error::from)
+        })
+        .collect()
 }
 
-fn collection(rt: &Runtime) {
+fn collection(rt: &Runtime) -> Result<()> {
     let scmd = rt.cli().subcommand_matches("collection").unwrap();
 
     if scmd.is_present("add") { // adding a new collection
         let name = scmd.value_of("add").unwrap();
-        if let Ok(id) = BookmarkCollectionStore::new(rt.store(), &name) {
-            rt.report_touched(id.get_location()).unwrap_or_exit();
-            info!("Created: {}", name);
-        } else {
-            warn!("Creating collection {} failed", name);
-            exit(1);
-        }
+        let id   = BookmarkCollectionStore::new(rt.store(), &name)?;
+        rt.report_touched(id.get_location())?;
+        info!("Created: {}", name);
     }
 
     if scmd.is_present("remove") { // remove a collection
         let name = scmd.value_of("remove").unwrap();
 
         { // remove all links
-            BookmarkCollectionStore::get(rt.store(), &name)
-                .map_err_trace_exit_unwrap()
-                .ok_or_else(|| format_err!("Collection does not exist: {}", name))
-                .map_err_trace_exit_unwrap()
-                .unlink(rt.store())
-                .map_err_trace_exit_unwrap();
+            BookmarkCollectionStore::get(rt.store(), &name)?
+                .ok_or_else(|| format_err!("Collection does not exist: {}", name))?
+                .unlink(rt.store())?;
         }
 
-        if BookmarkCollectionStore::delete(rt.store(), &name).is_ok() {
-            info!("Deleted: {}", name);
-        } else {
-            warn!("Deleting collection {} failed", name);
-            exit(1);
-        }
+        BookmarkCollectionStore::delete(rt.store(), &name)?;
+        info!("Deleted: {}", name);
     }
+
+    Ok(())
 }
 
-fn list(rt: &Runtime) {
-    let coll = get_collection_name(rt, "list", "collection");
+fn list(rt: &Runtime) -> Result<()> {
+    let coll = get_collection_name(rt, "list", "collection")?;
 
-    let collection = BookmarkCollectionStore::get(rt.store(), &coll)
-        .map_err_trace_exit_unwrap()
-        .ok_or_else(|| format_err!("No bookmark collection '{}' found", coll))
-        .map_err_trace_exit_unwrap();
+    let collection = BookmarkCollectionStore::get(rt.store(), &coll)?
+        .ok_or_else(|| format_err!("No bookmark collection '{}' found", coll))?;
 
-    rt.report_touched(collection.get_location()).unwrap_or_exit();
+    rt.report_touched(collection.get_location())?;
+
+    let mut i = 0; // poor mans enumerate()
 
     collection
-        .get_links(rt.store())
-        .map_dbg_str("Listing...")
-        .map_err_trace_exit_unwrap()
-        .enumerate()
-        .for_each(|(i, link)| match link {
-            Ok(link) => writeln!(rt.stdout(), "{: >3}: {}", i, link).to_exit_code().unwrap_or_exit(),
-            Err(e)   => trace_error(&e)
-        });
-    debug!("... ready with listing");
+        .get_links(rt.store())?
+        .and_then_ok(|link| {
+            let r = writeln!(rt.stdout(), "{: >3}: {}", i, link).map_err(Error::from);
+            i += 1;
+            r
+        })
+        .collect()
 }
 
-fn remove(rt: &Runtime) {
+fn remove(rt: &Runtime) -> Result<()> {
     let scmd = rt.cli().subcommand_matches("remove").unwrap();
-    let coll = get_collection_name(rt, "list", "collection");
+    let coll = get_collection_name(rt, "list", "collection")?;
 
-    let mut collection = BookmarkCollectionStore::get(rt.store(), &coll)
-        .map_err_trace_exit_unwrap()
-        .ok_or_else(|| format_err!("No bookmark collection '{}' found", coll))
-        .map_err_trace_exit_unwrap();
+    let mut collection = BookmarkCollectionStore::get(rt.store(), &coll)?
+        .ok_or_else(|| format_err!("No bookmark collection '{}' found", coll))?;
 
-    rt.report_touched(collection.get_location()).unwrap_or_exit();
+    rt.report_touched(collection.get_location())?;
 
-    for url in scmd.values_of("urls").unwrap() { // enforced by clap
-        let removed_links = BookmarkCollection::remove_link(collection.deref_mut(), rt.store(), BookmarkLink::from(url))
-            .map_err_trace_exit_unwrap();
-
-        rt.report_all_touched(removed_links.into_iter()).unwrap_or_exit();
-    }
-
-    info!("Ready");
+    scmd.values_of("urls")
+        .unwrap()
+        .into_iter()
+        .map(|url| {
+            let removed_links = BookmarkCollection::remove_link(collection.deref_mut(), rt.store(), BookmarkLink::from(url))?;
+            rt.report_all_touched(removed_links.into_iter()).map_err(Error::from)
+        })
+        .collect()
 }
 
 
 fn get_collection_name(rt: &Runtime,
                        subcommand_name: &str,
                        collection_argument_name: &str)
-    -> String
+    -> Result<String>
 {
-    rt.cli()
+    if let Some(cn) = rt.cli()
         .subcommand_matches(subcommand_name)
         .and_then(|scmd| scmd.value_of(collection_argument_name).map(String::from))
-        .unwrap_or_else(|| {
-            rt.config()
-                .map(|cfg| {
-                    cfg.read_string("bookmark.default_collection")
-                        .map_err(Error::from)
-                        .map_err_trace_exit_unwrap()
-                        .ok_or_else(|| {
-                            error!("Missing config: 'bookmark.default_collection'. Set or use commandline to specify.");
-                            exit(1)
-                        })
-                        .unwrap()
-                        .clone()
-                })
-                .unwrap_or_else(|| {
-                    error!("Failed to read configuration");
-                    exit(1)
-                })
-        })
+    {
+        return Ok(cn)
+    } else {
+        rt.config().ok_or_else(|| err_msg("No configuration availablew"))
+            .and_then(|cfg| {
+                cfg.read_string("bookmark.default_collection")?
+                    .ok_or_else(|| err_msg("Missing config: 'bookmark.default_collection'."))
+            })
+    }
 }