diff --git a/src/bridge.rs b/src/bridge.rs
index c43a3d0..7bb7fd3 100644
--- a/src/bridge.rs
+++ b/src/bridge.rs
@@ -60,46 +60,18 @@ fn save_git_map(path: &std::path::Path, map: &GitMap) -> Result<()> {
     Ok(())
 }
 
-fn make_cred_callback()
--> impl FnMut(&str, Option<&str>, git2::CredentialType) -> std::result::Result<git2::Cred, git2::Error>
-{
-    let mut attempts = 0u32;
-    move |_url, username, allowed| {
-        attempts += 1;
-        if attempts > 4 {
-            return Err(git2::Error::from_str("authentication failed"));
-        }
-
-        if allowed.contains(git2::CredentialType::SSH_KEY) {
-            let user = username.unwrap_or("git");
-
-            if attempts <= 1
-                && let Ok(cred) = git2::Cred::ssh_key_from_agent(user)
-            {
-                return Ok(cred);
-            }
-
-            let home = std::env::var("HOME").unwrap_or_default();
-            let ssh_dir = std::path::Path::new(&home).join(".ssh");
-            for key_name in &["id_ed25519", "id_rsa", "id_ecdsa"] {
-                let key_path = ssh_dir.join(key_name);
-                if key_path.exists() {
-                    let pub_path = ssh_dir.join(format!("{key_name}.pub"));
-                    let pub_key = pub_path.exists().then_some(pub_path.as_path());
-                    if let Ok(cred) = git2::Cred::ssh_key(user, pub_key, &key_path, None) {
-                        return Ok(cred);
-                    }
-                }
-            }
-
-            Err(git2::Error::from_str("no SSH key found"))
-        } else if allowed.contains(git2::CredentialType::USER_PASS_PLAINTEXT) {
-            Err(git2::Error::from_str(
-                "interactive authentication not supported",
-            ))
-        } else {
-            git2::Cred::default()
-        }
+fn cred_callback(
+    _url: &str,
+    username: Option<&str>,
+    allowed: git2::CredentialType,
+) -> std::result::Result<git2::Cred, git2::Error> {
+    if allowed.contains(git2::CredentialType::SSH_KEY) {
+        let user = username.unwrap_or("git");
+        git2::Cred::ssh_key_from_agent(user)
+    } else if allowed.contains(git2::CredentialType::USER_PASS_PLAINTEXT) {
+        git2::Cred::userpass_plaintext("", "")
+    } else {
+        git2::Cred::default()
     }
 }
 
@@ -107,7 +79,6 @@ impl GitBridge {
     /// Open (or initialise) the shadow git repository and load the mapping cache.
     pub fn open(repo: &Repository) -> Result<Self> {
         let git_dir = shadow_git_dir(repo);
-        debug!("opening git bridge at {}", git_dir.display());
         let git_repo = if git_dir.exists() {
             git2::Repository::open_bare(&git_dir)?
         } else {
@@ -115,7 +86,6 @@ impl GitBridge {
         };
         let map_path = git_map_path(repo);
         let map = load_git_map(&map_path)?;
-        debug!("loaded git map with {} entries", map.arc_to_git.len());
         Ok(Self {
             git_repo,
             map,
@@ -132,15 +102,7 @@ impl GitBridge {
     ///
     /// Returns the git OID for the newly created (or cached) git commit.
     pub fn arc_to_git(&mut self, arc_repo: &Repository, arc_id: &CommitId) -> Result<git2::Oid> {
-        debug!(
-            "converting arc commit {} to git",
-            &arc_id.0[..12.min(arc_id.0.len())]
-        );
         if let Some(hex) = self.map.arc_to_git.get(&arc_id.0) {
-            debug!(
-                "arc commit {} already mapped to git",
-                &arc_id.0[..12.min(arc_id.0.len())]
-            );
             let oid = git2::Oid::from_str(hex)?;
             return Ok(oid);
         }
@@ -169,11 +131,6 @@ impl GitBridge {
             .git_repo
             .commit(None, &sig, &sig, &c.message, &git_tree, &parent_refs)?;
 
-        debug!(
-            "created git commit {} for arc {}",
-            oid,
-            &arc_id.0[..12.min(arc_id.0.len())]
-        );
         self.map
             .arc_to_git
             .insert(arc_id.0.clone(), oid.to_string());
@@ -189,15 +146,7 @@ impl GitBridge {
     /// Returns the arc `CommitId` for the newly created (or cached) commit.
     pub fn git_to_arc(&mut self, arc_repo: &Repository, git_oid: git2::Oid) -> Result<CommitId> {
         let oid_hex = git_oid.to_string();
-        debug!(
-            "converting git commit {} to arc",
-            &oid_hex[..12.min(oid_hex.len())]
-        );
         if let Some(arc_id) = self.map.git_to_arc.get(&oid_hex) {
-            debug!(
-                "git commit {} already mapped to arc",
-                &oid_hex[..12.min(oid_hex.len())]
-            );
             return Ok(CommitId(arc_id.clone()));
         }
 
@@ -259,11 +208,6 @@ impl GitBridge {
         };
         store::write_commit_object(arc_repo, &obj)?;
 
-        debug!(
-            "created arc commit {} for git {}",
-            &commit_id.0[..12.min(commit_id.0.len())],
-            &oid_hex[..12.min(oid_hex.len())]
-        );
         self.map
             .arc_to_git
             .insert(commit_id.0.clone(), oid_hex.clone());
@@ -381,7 +325,6 @@ impl GitBridge {
 ///
 /// Converts all reachable commits, updates shadow refs, and pushes.
 pub fn push(arc_repo: &Repository, remote_name: &str) -> Result<String> {
-    debug!("pushing to remote '{}'", remote_name);
     let remotes = remote::load(arc_repo)?;
     let entry = remotes
         .remotes
@@ -454,7 +397,7 @@ pub fn push(arc_repo: &Repository, remote_name: &str) -> Result<String> {
         let mut git_remote = bridge.git_repo.remote_anonymous(url)?;
         let mut opts = git2::PushOptions::new();
         let mut callbacks = git2::RemoteCallbacks::new();
-        callbacks.credentials(make_cred_callback());
+        callbacks.credentials(cred_callback);
         opts.remote_callbacks(callbacks);
         git_remote.push(&spec_strs, Some(&mut opts))?;
     }
@@ -462,7 +405,6 @@ pub fn push(arc_repo: &Repository, remote_name: &str) -> Result<String> {
     bridge.save_map()?;
 
     let count = ref_specs.len();
-    debug!("pushed {} ref(s)", count);
     Ok(format!("pushed {count} ref(s) to {remote_name}"))
 }
 
@@ -471,7 +413,6 @@ pub fn push(arc_repo: &Repository, remote_name: &str) -> Result<String> {
 /// Fetches, then imports reachable commits for each remote branch
 /// and updates local bookmarks that can be fast-forwarded.
 pub fn pull(arc_repo: &Repository, remote_name: &str) -> Result<String> {
-    debug!("pulling from remote '{}'", remote_name);
     let remotes = remote::load(arc_repo)?;
     let entry = remotes
         .remotes
@@ -485,7 +426,7 @@ pub fn pull(arc_repo: &Repository, remote_name: &str) -> Result<String> {
         let mut git_remote = bridge.git_repo.remote_anonymous(url)?;
         let mut opts = git2::FetchOptions::new();
         let mut callbacks = git2::RemoteCallbacks::new();
-        callbacks.credentials(make_cred_callback());
+        callbacks.credentials(cred_callback);
         opts.remote_callbacks(callbacks);
         git_remote.fetch::<&str>(&[], Some(&mut opts), None)?;
 
@@ -531,7 +472,6 @@ pub fn pull(arc_repo: &Repository, remote_name: &str) -> Result<String> {
         }
         result
     };
-    debug!("fetched {} new ref(s)", refs.len());
 
     for (_refname, oid) in &refs {
         if bridge.map.git_to_arc.contains_key(&oid.to_string()) {
@@ -626,7 +566,6 @@ pub fn pull(arc_repo: &Repository, remote_name: &str) -> Result<String> {
 /// Creates the target directory, initialises an arc repo, imports all
 /// git history, and sets up the worktree at the specified branch.
 pub fn clone(url: &str, path: &str, branch: &str) -> Result<String> {
-    debug!("cloning from '{}'", url);
     let target = std::path::Path::new(path);
     let created_dir = !target.exists();
     if created_dir {
@@ -651,7 +590,7 @@ fn clone_inner(url: &str, target: &std::path::Path, branch: &str) -> Result<Stri
 
     let git_dir = shadow_git_dir(&arc_repo);
     let mut callbacks = git2::RemoteCallbacks::new();
-    callbacks.credentials(make_cred_callback());
+    callbacks.credentials(cred_callback);
     let mut opts = git2::FetchOptions::new();
     opts.remote_callbacks(callbacks);
     let git_repo = git2::build::RepoBuilder::new()
@@ -747,11 +686,6 @@ fn clone_inner(url: &str, target: &std::path::Path, branch: &str) -> Result<Stri
 
     bridge.save_map()?;
 
-    debug!(
-        "cloned {} commit(s) on branch '{}'",
-        bridge.map.arc_to_git.len(),
-        branch
-    );
     Ok(format!(
         "cloned into {} on bookmark '{branch}'",
         target.display()
@@ -763,7 +697,6 @@ fn clone_inner(url: &str, target: &std::path::Path, branch: &str) -> Result<Stri
 /// Creates `.arc/` alongside the existing `.git/`, imports all branches
 /// and tags from git history as arc commits.
 pub fn migrate(path: &std::path::Path) -> Result<String> {
-    debug!("migrating git repository at {}", path.display());
     let git_repo = git2::Repository::discover(path).map_err(|_| ArcError::NotAGitRepo)?;
 
     let workdir = git_repo.workdir().ok_or(ArcError::NotAGitRepo)?;
@@ -802,7 +735,6 @@ pub fn migrate(path: &std::path::Path) -> Result<String> {
         }
         result
     };
-    debug!("found {} git ref(s) to import", refs.len());
 
     let mut bridge = GitBridge {
         git_repo,
@@ -867,12 +799,6 @@ pub fn migrate(path: &std::path::Path) -> Result<String> {
 
     bridge.save_map()?;
 
-    debug!(
-        "migration complete: {} commit(s), {} bookmark(s), {} tag(s)",
-        imported,
-        bookmarks.len(),
-        tags.len()
-    );
     Ok(format!(
         "migrated {imported} commit(s), {} bookmark(s), {} tag(s)",
         bookmarks.len(),
@@ -885,7 +811,6 @@ pub fn migrate(path: &std::path::Path) -> Result<String> {
 /// Without `--push`, this ensures the shadow git repo mirrors arc state.
 /// With `--push`, it also pushes all refs to the default remote.
 pub fn sync(arc_repo: &Repository, do_push: bool) -> Result<String> {
-    debug!("syncing refs to shadow git");
     let mut bridge = GitBridge::open(arc_repo)?;
     let mut synced = 0usize;
 
@@ -930,7 +855,6 @@ pub fn sync(arc_repo: &Repository, do_push: bool) -> Result<String> {
     }
 
     bridge.save_map()?;
-    debug!("synced {} ref(s)", synced);
 
     if do_push {
         let config = crate::config::load_effective(arc_repo);
@@ -945,11 +869,6 @@ pub fn sync(arc_repo: &Repository, do_push: bool) -> Result<String> {
 /// Check whether `ancestor` is an ancestor of `descendant` by walking
 /// the first-parent chain from `descendant`.
 fn is_ancestor(repo: &Repository, ancestor: &CommitId, descendant: &CommitId) -> bool {
-    debug!(
-        "checking if {} is ancestor of {}",
-        &ancestor.0[..12.min(ancestor.0.len())],
-        &descendant.0[..12.min(descendant.0.len())]
-    );
     let mut current = descendant.clone();
     loop {
         if current == *ancestor {
diff --git a/src/cli.rs b/src/cli.rs
index 7aab0a4..7bd470b 100644
--- a/src/cli.rs
+++ b/src/cli.rs
@@ -1,6 +1,5 @@
 use std::collections::BTreeMap;
 use std::path::Path;
-use std::sync::atomic::{AtomicBool, Ordering};
 
 use clap::{Parser, Subcommand};
 
@@ -17,21 +16,9 @@ use crate::stash;
 use crate::tracking;
 use crate::ui;
 
-static VERBOSE: AtomicBool = AtomicBool::new(false);
-
-/// Returns whether verbose/debug output is enabled.
-#[allow(dead_code)]
-pub fn verbose() -> bool {
-    VERBOSE.load(Ordering::Relaxed)
-}
-
 #[derive(Parser)]
 #[command(name = "arc", about = "A delta-based version control system", version)]
 pub struct Cli {
-    /// Enable verbose/debug output
-    #[arg(short, long, global = true)]
-    pub verbose: bool,
-
     #[command(subcommand)]
     pub command: Command,
 }
@@ -367,11 +354,8 @@ pub fn parse() -> Cli {
 }
 
 pub fn dispatch(cli: Cli) {
-    VERBOSE.store(cli.verbose, Ordering::Relaxed);
-    debug!("dispatching command");
     match cli.command {
         Command::Init { path } => {
-            debug!("command: init (path: {:?})", path);
             let target = path.as_deref().unwrap_or(".");
             let target_path = Path::new(target);
             if !target_path.exists()
@@ -397,7 +381,6 @@ pub fn dispatch(cli: Cli) {
             }
         }
         Command::Commit { message } => {
-            debug!("command: commit (message: {})", message);
             let repo = open_repo_or_exit();
             match tracking::commit(&repo, &message) {
                 Ok(id) => {
@@ -413,7 +396,6 @@ pub fn dispatch(cli: Cli) {
             }
         }
         Command::Log { range } => {
-            debug!("command: log (range: {:?})", range);
             let repo = open_repo_or_exit();
             match inspect::log(&repo, range.as_deref()) {
                 Ok(output) => print!("{output}"),
@@ -424,7 +406,6 @@ pub fn dispatch(cli: Cli) {
             }
         }
         Command::Status => {
-            debug!("command: status");
             let repo = open_repo_or_exit();
             match tracking::status(&repo) {
                 Ok((report, _)) => {
@@ -437,7 +418,6 @@ pub fn dispatch(cli: Cli) {
             }
         }
         Command::Diff { range: _range } => {
-            debug!("command: diff (range: {:?})", _range);
             let repo = open_repo_or_exit();
             match run_diff(&repo) {
                 Ok(output) => {
@@ -454,7 +434,6 @@ pub fn dispatch(cli: Cli) {
             }
         }
         Command::Switch { target } => {
-            debug!("command: switch (target: {})", target);
             let repo = open_repo_or_exit();
             match refs::switch(&repo, &target) {
                 Ok(msg) => println!("{msg}"),
@@ -465,7 +444,6 @@ pub fn dispatch(cli: Cli) {
             }
         }
         Command::Merge { target } => {
-            debug!("command: merge (target: {})", target);
             let repo = open_repo_or_exit();
             match modify::merge_branch(&repo, &target) {
                 Ok(id) => println!(
@@ -483,7 +461,6 @@ pub fn dispatch(cli: Cli) {
             }
         }
         Command::Show { target } => {
-            debug!("command: show (target: {})", target);
             let repo = open_repo_or_exit();
             match inspect::show(&repo, &target) {
                 Ok(output) => print!("{output}"),
@@ -494,7 +471,6 @@ pub fn dispatch(cli: Cli) {
             }
         }
         Command::History { file, range } => {
-            debug!("command: history (file: {}, range: {:?})", file, range);
             let repo = open_repo_or_exit();
             match inspect::history(&repo, &file, range.as_deref()) {
                 Ok(output) => print!("{output}"),
@@ -505,7 +481,6 @@ pub fn dispatch(cli: Cli) {
             }
         }
         Command::Revert { target } => {
-            debug!("command: revert (target: {})", target);
             let repo = open_repo_or_exit();
             match modify::revert(&repo, &target) {
                 Ok(id) => println!(
@@ -519,7 +494,6 @@ pub fn dispatch(cli: Cli) {
             }
         }
         Command::Reset { files } => {
-            debug!("command: reset (files: {:?})", files);
             let repo = open_repo_or_exit();
             match modify::reset(&repo, &files) {
                 Ok(msg) => println!("{msg}"),
@@ -530,7 +504,6 @@ pub fn dispatch(cli: Cli) {
             }
         }
         Command::Push { remote } => {
-            debug!("command: push (remote: {:?})", remote);
             let repo = open_repo_or_exit();
             let config = config::load_effective(&repo);
             let r = remote.as_deref().unwrap_or(&config.default_remote);
@@ -543,7 +516,6 @@ pub fn dispatch(cli: Cli) {
             }
         }
         Command::Pull { remote } => {
-            debug!("command: pull (remote: {:?})", remote);
             let repo = open_repo_or_exit();
             let config = config::load_effective(&repo);
             let r = remote.as_deref().unwrap_or(&config.default_remote);
@@ -556,10 +528,6 @@ pub fn dispatch(cli: Cli) {
             }
         }
         Command::Clone { url, path, branch } => {
-            debug!(
-                "command: clone (url: {}, path: {:?}, branch: {:?})",
-                url, path, branch
-            );
             let p = path.as_deref().unwrap_or(".");
             let b = branch.as_deref().unwrap_or("main");
             match bridge::clone(&url, p, b) {
@@ -570,18 +538,14 @@ pub fn dispatch(cli: Cli) {
                 }
             }
         }
-        Command::Migrate => {
-            debug!("command: migrate");
-            match bridge::migrate(Path::new(".")) {
-                Ok(msg) => println!("{msg}"),
-                Err(e) => {
-                    eprintln!("{}", ui::error(&e.to_string()));
-                    std::process::exit(1);
-                }
+        Command::Migrate => match bridge::migrate(Path::new(".")) {
+            Ok(msg) => println!("{msg}"),
+            Err(e) => {
+                eprintln!("{}", ui::error(&e.to_string()));
+                std::process::exit(1);
             }
-        }
+        },
         Command::Mark { command } => {
-            debug!("command: mark");
             let repo = open_repo_or_exit();
             match command {
                 MarkCommand::Add { name, commit } => {
@@ -636,7 +600,6 @@ pub fn dispatch(cli: Cli) {
             }
         }
         Command::Tag { command } => {
-            debug!("command: tag");
             let repo = open_repo_or_exit();
             match command {
                 TagCommand::Add { name, commit } => {
@@ -675,7 +638,6 @@ pub fn dispatch(cli: Cli) {
             }
         }
         Command::Stash { command } => {
-            debug!("command: stash");
             let repo = open_repo_or_exit();
             match command {
                 StashCommand::Create { name } => match stash::create(&repo, &name) {
@@ -723,7 +685,6 @@ pub fn dispatch(cli: Cli) {
             }
         }
         Command::Graft { target, onto } => {
-            debug!("command: graft (target: {}, onto: {})", target, onto);
             let repo = open_repo_or_exit();
             match modify::graft(&repo, &target, &onto) {
                 Ok(ids) => {
@@ -740,70 +701,66 @@ pub fn dispatch(cli: Cli) {
                 }
             }
         }
-        Command::Config { command } => {
-            debug!("command: config");
-            match command {
-                ConfigCommand::Set { global, key, value } => {
-                    let repo = if global {
-                        None
-                    } else {
-                        Some(open_repo_or_exit())
-                    };
-                    match config::config_set(repo.as_ref(), global, &key, &value) {
-                        Ok(()) => println!("{}", ui::success(&format!("{key} = {value}"))),
-                        Err(e) => {
-                            eprintln!("{}", ui::error(&e.to_string()));
-                            std::process::exit(1);
-                        }
-                    }
-                }
-                ConfigCommand::Get { global, key } => {
-                    let repo = if global {
-                        None
-                    } else {
-                        Repository::discover(Path::new(".")).ok()
-                    };
-                    match config::config_get(repo.as_ref(), global, &key) {
-                        Ok(Some(value)) => println!("{value}"),
-                        Ok(None) => println!("{}", ui::info(&format!("{key} is not set"))),
-                        Err(e) => {
-                            eprintln!("{}", ui::error(&e.to_string()));
-                            std::process::exit(1);
-                        }
-                    }
-                }
-                ConfigCommand::Show { global } => {
-                    let repo = if global {
-                        None
-                    } else {
-                        Repository::discover(Path::new(".")).ok()
-                    };
-                    match config::config_show(repo.as_ref(), global) {
-                        Ok(yaml) => print!("{yaml}"),
-                        Err(e) => {
-                            eprintln!("{}", ui::error(&e.to_string()));
-                            std::process::exit(1);
-                        }
-                    }
-                }
-                ConfigCommand::Unset { global, key } => {
-                    let repo = if global {
-                        None
-                    } else {
-                        Some(open_repo_or_exit())
-                    };
-                    match config::config_unset(repo.as_ref(), global, &key) {
-                        Ok(()) => println!("{}", ui::success(&format!("unset {key}"))),
-                        Err(e) => {
-                            eprintln!("{}", ui::error(&e.to_string()));
-                            std::process::exit(1);
-                        }
+        Command::Config { command } => match command {
+            ConfigCommand::Set { global, key, value } => {
+                let repo = if global {
+                    None
+                } else {
+                    Some(open_repo_or_exit())
+                };
+                match config::config_set(repo.as_ref(), global, &key, &value) {
+                    Ok(()) => println!("{}", ui::success(&format!("{key} = {value}"))),
+                    Err(e) => {
+                        eprintln!("{}", ui::error(&e.to_string()));
+                        std::process::exit(1);
                     }
                 }
             }
-        }
+            ConfigCommand::Get { global, key } => {
+                let repo = if global {
+                    None
+                } else {
+                    Repository::discover(Path::new(".")).ok()
+                };
+                match config::config_get(repo.as_ref(), global, &key) {
+                    Ok(Some(value)) => println!("{value}"),
+                    Ok(None) => println!("{}", ui::info(&format!("{key} is not set"))),
+                    Err(e) => {
+                        eprintln!("{}", ui::error(&e.to_string()));
+                        std::process::exit(1);
+                    }
+                }
+            }
+            ConfigCommand::Show { global } => {
+                let repo = if global {
+                    None
+                } else {
+                    Repository::discover(Path::new(".")).ok()
+                };
+                match config::config_show(repo.as_ref(), global) {
+                    Ok(yaml) => print!("{yaml}"),
+                    Err(e) => {
+                        eprintln!("{}", ui::error(&e.to_string()));
+                        std::process::exit(1);
+                    }
+                }
+            }
+            ConfigCommand::Unset { global, key } => {
+                let repo = if global {
+                    None
+                } else {
+                    Some(open_repo_or_exit())
+                };
+                match config::config_unset(repo.as_ref(), global, &key) {
+                    Ok(()) => println!("{}", ui::success(&format!("unset {key}"))),
+                    Err(e) => {
+                        eprintln!("{}", ui::error(&e.to_string()));
+                        std::process::exit(1);
+                    }
+                }
+            }
+        },
         Command::Sync { push } => {
-            debug!("command: sync (push: {})", push);
             let repo = open_repo_or_exit();
             match bridge::sync(&repo, push) {
                 Ok(msg) => println!("{msg}"),
@@ -814,7 +771,6 @@ pub fn dispatch(cli: Cli) {
             }
         }
         Command::Remote { command } => {
-            debug!("command: remote");
             let repo = open_repo_or_exit();
             match command {
                 RemoteCommand::Add { name, url } => match remote::add(&repo, &name, &url) {
@@ -853,7 +809,6 @@ pub fn dispatch(cli: Cli) {
 }
 
 fn open_repo_or_exit() -> Repository {
-    debug!("discovering repository from current directory");
     match Repository::discover(Path::new(".")) {
         Ok(repo) => repo,
         Err(e) => {
@@ -864,7 +819,6 @@ fn open_repo_or_exit() -> Repository {
 }
 
 fn run_diff(repo: &Repository) -> crate::error::Result<String> {
-    debug!("computing diff");
     let ignore = IgnoreRules::load(&repo.workdir);
     let head_commit = tracking::resolve_head_commit(repo)?;
 
diff --git a/src/config.rs b/src/config.rs
index 8cd1e92..ac4915f 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -46,19 +46,11 @@ pub struct EffectiveConfig {
 
 impl Config {
     pub fn load_local(repo: &Repository) -> Result<Option<Config>> {
-        debug!(
-            "loading local config from {}",
-            repo.local_config_path().display()
-        );
         let path = repo.local_config_path();
         Self::load_from(&path)
     }
 
     pub fn load_global() -> Result<Option<Config>> {
-        debug!(
-            "loading global config from {}",
-            Self::global_config_path().display()
-        );
         let path = Self::global_config_path();
         Self::load_from(&path)
     }
@@ -138,7 +130,6 @@ impl Config {
 }
 
 pub fn load_effective(repo: &crate::repo::Repository) -> EffectiveConfig {
-    debug!("loading effective config");
     let local = Config::load_local(repo).ok().flatten();
     let global = Config::load_global().ok().flatten();
     Config::effective(local, global)
@@ -239,7 +230,6 @@ fn unset_field(config: &mut Config, section: &str, field: &str) -> Result<()> {
 
 /// Set a configuration value in the local or global config file.
 pub fn config_set(repo: Option<&Repository>, global: bool, key: &str, value: &str) -> Result<()> {
-    debug!("setting config {key} = {value} (global: {global})");
     let (section, field) = parse_key(key)?;
     if global {
         let path = Config::global_config_path();
@@ -257,7 +247,6 @@ pub fn config_set(repo: Option<&Repository>, global: bool, key: &str, value: &st
 
 /// Get a configuration value, resolving local-first then global.
 pub fn config_get(repo: Option<&Repository>, global: bool, key: &str) -> Result<Option<String>> {
-    debug!("getting config {key} (global: {global})");
     let (section, field) = parse_key(key)?;
     if global {
         let config = Config::load_global()?.unwrap_or_default();
@@ -293,7 +282,6 @@ pub fn config_show(repo: Option<&Repository>, global: bool) -> Result<String> {
 
 /// Remove a configuration key from the local or global config file.
 pub fn config_unset(repo: Option<&Repository>, global: bool, key: &str) -> Result<()> {
-    debug!("unsetting config {key} (global: {global})");
     let (section, field) = parse_key(key)?;
     if global {
         let path = Config::global_config_path();
diff --git a/src/diff.rs b/src/diff.rs
index 9e49db5..6c28e8f 100644
--- a/src/diff.rs
+++ b/src/diff.rs
@@ -3,7 +3,6 @@ use crate::tracking::FileTree;
 use crate::ui;
 
 pub fn render_diff(committed: &FileTree, changes: &[FileChange]) -> String {
-    debug!("rendering diff for {} change(s)", changes.len());
     let mut output = String::new();
 
     for change in changes {
diff --git a/src/ignore.rs b/src/ignore.rs
index 29d1a86..0e86a7e 100644
--- a/src/ignore.rs
+++ b/src/ignore.rs
@@ -12,7 +12,6 @@ pub struct IgnorePattern {
 
 impl IgnoreRules {
     pub fn load(workdir: &Path) -> Self {
-        debug!("loading ignore rules from {}", workdir.display());
         let arcignore = workdir.join(".arcignore");
         let ignore = workdir.join(".ignore");
 
@@ -24,14 +23,12 @@ impl IgnoreRules {
             None
         };
 
-        let rules = match path {
+        match path {
             Some(p) => Self::parse_file(&p),
             None => Self {
                 patterns: Vec::new(),
             },
-        };
-        debug!("loaded {} ignore pattern(s)", rules.patterns.len());
-        rules
+        }
     }
 
     fn parse_file(path: &Path) -> Self {
diff --git a/src/inspect.rs b/src/inspect.rs
index fce5779..f298806 100644
--- a/src/inspect.rs
+++ b/src/inspect.rs
@@ -13,7 +13,6 @@ use crate::tracking;
 use crate::ui;
 
 pub fn log(repo: &Repository, range: Option<&str>) -> Result<String> {
-    debug!("showing log (range: {:?})", range);
     let resolved = resolve::parse_and_resolve_range(repo, range)?;
     let chain = &resolved.chain[resolved.start_idx..];
 
@@ -52,7 +51,6 @@ pub fn log(repo: &Repository, range: Option<&str>) -> Result<String> {
 }
 
 pub fn show(repo: &Repository, target: &str) -> Result<String> {
-    debug!("showing commit '{}'", target);
     let commit_id = resolve::resolve_target(repo, target)?;
     let obj = store::read_commit_object(repo, &commit_id)?;
     let c = &obj.commit;
@@ -119,7 +117,6 @@ pub fn show(repo: &Repository, target: &str) -> Result<String> {
 }
 
 pub fn history(repo: &Repository, file: &str, range: Option<&str>) -> Result<String> {
-    debug!("showing history for file '{}'", file);
     let resolved = resolve::parse_and_resolve_range(repo, range)?;
     let chain = &resolved.chain[resolved.start_idx..];
 
diff --git a/src/main.rs b/src/main.rs
index 3ea7e1a..9702d2e 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,6 +1,3 @@
-#[macro_use]
-pub mod ui;
-
 pub mod bridge;
 mod cli;
 pub mod config;
@@ -19,6 +16,7 @@ pub mod signing;
 pub mod stash;
 pub mod store;
 pub mod tracking;
+pub mod ui;
 
 fn main() {
     let cli = cli::parse();
diff --git a/src/merge.rs b/src/merge.rs
index f93149f..0ba1e6c 100644
--- a/src/merge.rs
+++ b/src/merge.rs
@@ -15,11 +15,6 @@ pub fn three_way_merge(base: &FileTree, ours: &FileTree, theirs: &FileTree) -> M
         .chain(theirs.keys())
         .collect();
 
-    debug!(
-        "performing three-way merge across {} path(s)",
-        all_paths.len()
-    );
-
     let mut tree = FileTree::new();
     let mut conflicts = Vec::new();
 
@@ -76,7 +71,6 @@ pub fn three_way_merge(base: &FileTree, ours: &FileTree, theirs: &FileTree) -> M
         }
     }
 
-    debug!("merge result: {} conflict(s)", conflicts.len());
     MergeOutcome { tree, conflicts }
 }
 
diff --git a/src/modify.rs b/src/modify.rs
index 2857dd1..d063f73 100644
--- a/src/modify.rs
+++ b/src/modify.rs
@@ -12,7 +12,6 @@ use crate::store::{self, CommitObject};
 use crate::tracking::{self, FileTree};
 
 pub fn reset(repo: &Repository, files: &[String]) -> Result<String> {
-    debug!("resetting worktree");
     let head_commit = tracking::resolve_head_commit(repo)?;
     let ignore = IgnoreRules::load(&repo.workdir);
 
@@ -79,7 +78,6 @@ pub fn reset(repo: &Repository, files: &[String]) -> Result<String> {
 
     refs::remove_empty_dirs(&repo.workdir)?;
 
-    debug!("reset {} file(s)", reset_count);
     if reset_count == 0 {
         Ok("no matching files to reset".to_string())
     } else {
@@ -88,12 +86,10 @@ pub fn reset(repo: &Repository, files: &[String]) -> Result<String> {
 }
 
 pub fn revert(repo: &Repository, target: &str) -> Result<CommitId> {
-    debug!("reverting target '{}'", target);
     require_clean_worktree(repo)?;
 
     let head_id = tracking::resolve_head_commit(repo)?.ok_or(ArcError::NoCommitsYet)?;
     let commits = resolve_commit_or_range(repo, target)?;
-    debug!("processing revert for {} commit(s)", commits.len());
 
     let mut current_tree = tracking::materialize_committed_tree(repo, &head_id)?;
 
@@ -127,7 +123,6 @@ pub fn revert(repo: &Repository, target: &str) -> Result<CommitId> {
 }
 
 pub fn merge_branch(repo: &Repository, target: &str) -> Result<CommitId> {
-    debug!("merging target '{}'", target);
     require_clean_worktree(repo)?;
 
     let ours_id = tracking::resolve_head_commit(repo)?.ok_or(ArcError::NoCommitsYet)?;
@@ -138,7 +133,6 @@ pub fn merge_branch(repo: &Repository, target: &str) -> Result<CommitId> {
     }
 
     let base_id = find_merge_base(repo, &ours_id, &theirs_id)?;
-    debug!("merge base: {:?}", base_id);
 
     let base_tree = match &base_id {
         Some(id) => tracking::materialize_committed_tree(repo, id)?,
@@ -155,13 +149,11 @@ pub fn merge_branch(repo: &Repository, target: &str) -> Result<CommitId> {
         return Err(ArcError::MergeConflicts(outcome.conflicts));
     }
 
-    debug!("merge completed");
     let message = format!("merge {target}");
     commit_tree(repo, &message, vec![ours_id, theirs_id], &outcome.tree)
 }
 
 pub fn graft(repo: &Repository, target: &str, onto: &str) -> Result<Vec<CommitId>> {
-    debug!("grafting target '{}' onto '{}'", target, onto);
     require_clean_worktree(repo)?;
 
     let source_commits = resolve_commit_or_range(repo, target)?;
@@ -202,7 +194,6 @@ pub fn graft(repo: &Repository, target: &str, onto: &str) -> Result<Vec<CommitId
         new_ids.push(new_id);
     }
 
-    debug!("grafted {} commit(s)", new_ids.len());
     if is_bookmark {
         let bookmark_path = repo.bookmarks_dir().join(onto);
         let ref_target = RefTarget {
@@ -232,7 +223,6 @@ pub fn graft(repo: &Repository, target: &str, onto: &str) -> Result<Vec<CommitId
 }
 
 fn require_clean_worktree(repo: &Repository) -> Result<()> {
-    debug!("checking worktree is clean");
     let (report, _) = tracking::status(repo)?;
     if !report.is_clean() {
         return Err(ArcError::DirtyWorktree);
@@ -256,11 +246,6 @@ fn find_merge_base(
     ours: &CommitId,
     theirs: &CommitId,
 ) -> Result<Option<CommitId>> {
-    debug!(
-        "searching for merge base between {} and {}",
-        &ours.0[..12.min(ours.0.len())],
-        &theirs.0[..12.min(theirs.0.len())]
-    );
     let mut ours_ancestors = HashSet::new();
     collect_ancestors(repo, ours, &mut ours_ancestors)?;
     ours_ancestors.insert(ours.0.clone());
diff --git a/src/refs.rs b/src/refs.rs
index 72deaea..bcb274f 100644
--- a/src/refs.rs
+++ b/src/refs.rs
@@ -49,13 +49,11 @@ fn short_id(id: &CommitId) -> &str {
 pub fn mark_add(repo: &Repository, name: &str, commit: Option<&str>) -> Result<CommitId> {
     crate::repo::validate_ref_name(name)?;
     let id = resolve_commit_or_head(repo, commit)?;
-    debug!("adding bookmark '{}' at {id}", name);
     write_ref_target(&repo.bookmarks_dir().join(name), &id)?;
     Ok(id)
 }
 
 pub fn mark_rm(repo: &Repository, name: &str) -> Result<()> {
-    debug!("removing bookmark '{}'", name);
     crate::repo::validate_ref_name(name)?;
     let path = repo.bookmarks_dir().join(name);
     if !path.exists() {
@@ -71,7 +69,6 @@ pub fn mark_rm(repo: &Repository, name: &str) -> Result<()> {
 }
 
 pub fn mark_list(repo: &Repository) -> Result<String> {
-    debug!("listing bookmarks");
     let active = active_bookmark(repo)?;
     let dir = repo.bookmarks_dir();
     let mut entries: Vec<String> = Vec::new();
@@ -107,7 +104,6 @@ pub fn mark_list(repo: &Repository) -> Result<String> {
 }
 
 pub fn mark_rename(repo: &Repository, name: &str, new_name: &str) -> Result<()> {
-    debug!("renaming bookmark '{}' to '{}'", name, new_name);
     crate::repo::validate_ref_name(name)?;
     crate::repo::validate_ref_name(new_name)?;
     let old_path = repo.bookmarks_dir().join(name);
@@ -146,13 +142,11 @@ pub fn tag_add(repo: &Repository, name: &str, commit: Option<&str>) -> Result<Co
         return Err(ArcError::TagAlreadyExists(name.to_string()));
     }
     let id = resolve_commit_or_head(repo, commit)?;
-    debug!("adding tag '{}' at {id}", name);
     write_ref_target(&path, &id)?;
     Ok(id)
 }
 
 pub fn tag_rm(repo: &Repository, name: &str) -> Result<()> {
-    debug!("removing tag '{}'", name);
     crate::repo::validate_ref_name(name)?;
     let path = repo.tags_dir().join(name);
     if !path.exists() {
@@ -163,7 +157,6 @@ pub fn tag_rm(repo: &Repository, name: &str) -> Result<()> {
 }
 
 pub fn tag_list(repo: &Repository) -> Result<String> {
-    debug!("listing tags");
     let dir = repo.tags_dir();
     let mut names: Vec<String> = Vec::new();
     for entry in fs::read_dir(&dir)? {
@@ -192,7 +185,6 @@ pub fn tag_list(repo: &Repository) -> Result<String> {
 }
 
 pub fn switch(repo: &Repository, target: &str) -> Result<String> {
-    debug!("switching to target '{}'", target);
     let ignore = IgnoreRules::load(&repo.workdir);
     let head_commit = tracking::resolve_head_commit(repo)?;
 
@@ -238,7 +230,6 @@ pub fn switch(repo: &Repository, target: &str) -> Result<String> {
         Head::Unborn { .. } => unreachable!(),
     };
 
-    debug!("target resolved, writing new worktree");
     clean_tracked_files(repo, &committed)?;
 
     let new_tree = tracking::materialize_committed_tree(repo, &target_commit)?;
@@ -250,7 +241,6 @@ pub fn switch(repo: &Repository, target: &str) -> Result<String> {
 }
 
 pub fn clean_tracked_files(repo: &Repository, tree: &tracking::FileTree) -> Result<()> {
-    debug!("cleaning {} tracked file(s) from worktree", tree.len());
     for path in tree.keys() {
         crate::repo::validate_repo_path(path)?;
         let abs = repo.workdir.join(path);
@@ -288,7 +278,6 @@ pub fn remove_empty_dirs(dir: &std::path::Path) -> Result<()> {
 }
 
 pub fn write_tree(repo: &Repository, tree: &tracking::FileTree) -> Result<()> {
-    debug!("writing {} file(s) to worktree", tree.len());
     for (path, bytes) in tree {
         crate::repo::validate_repo_path(path)?;
         let abs = repo.workdir.join(path);
@@ -305,7 +294,6 @@ pub fn update_refs_after_commit(
     head: &Head,
     commit_id: &CommitId,
 ) -> Result<()> {
-    debug!("updating refs after commit {commit_id}");
     let ref_target = RefTarget {
         commit: Some(commit_id.clone()),
     };
diff --git a/src/remote.rs b/src/remote.rs
index 5e36879..d906e79 100644
--- a/src/remote.rs
+++ b/src/remote.rs
@@ -26,7 +26,6 @@ fn remotes_path(repo: &Repository) -> std::path::PathBuf {
 ///
 /// Returns an empty `RemotesFile` if the file does not yet exist.
 pub fn load(repo: &Repository) -> Result<RemotesFile> {
-    debug!("loading remotes from {}", remotes_path(repo).display());
     let path = remotes_path(repo);
     if !path.exists() {
         return Ok(RemotesFile {
@@ -50,7 +49,6 @@ pub fn save(repo: &Repository, file: &RemotesFile) -> Result<()> {
 /// The name is validated as a ref name. Returns an error if the remote
 /// already exists.
 pub fn add(repo: &Repository, name: &str, url: &str) -> Result<()> {
-    debug!("adding remote '{}' at {}", name, url);
     crate::repo::validate_ref_name(name)?;
     let mut file = load(repo)?;
     if file.remotes.contains_key(name) {
@@ -69,7 +67,6 @@ pub fn add(repo: &Repository, name: &str, url: &str) -> Result<()> {
 ///
 /// Returns an error if the remote does not exist.
 pub fn rm(repo: &Repository, name: &str) -> Result<()> {
-    debug!("removing remote '{}'", name);
     let mut file = load(repo)?;
     if file.remotes.remove(name).is_none() {
         return Err(ArcError::RemoteNotFound(name.to_string()));
@@ -82,7 +79,6 @@ pub fn rm(repo: &Repository, name: &str) -> Result<()> {
 /// Each line has the form `  <name>\t<url>\n`.
 /// Returns an empty string if no remotes are configured.
 pub fn list(repo: &Repository) -> Result<String> {
-    debug!("listing remotes");
     let file = load(repo)?;
     let mut out = String::new();
     for (name, entry) in &file.remotes {
diff --git a/src/repo.rs b/src/repo.rs
index 958a6f8..e6cd460 100644
--- a/src/repo.rs
+++ b/src/repo.rs
@@ -14,7 +14,6 @@ pub struct Repository {
 
 impl Repository {
     pub fn init(path: &Path) -> Result<Self> {
-        debug!("initializing repository at {}", path.display());
         let workdir = path.canonicalize().map_err(|_| {
             ArcError::invalid_path(format!("cannot resolve path: {}", path.display()))
         })?;
@@ -44,12 +43,10 @@ impl Repository {
         let ref_yaml = serde_yaml::to_string(&ref_target)?;
         fs::write(repo.bookmarks_dir().join("main"), ref_yaml)?;
 
-        debug!("created .arc directory structure");
         Ok(repo)
     }
 
     pub fn open(path: &Path) -> Result<Self> {
-        debug!("opening repository at {}", path.display());
         let workdir = path.canonicalize().map_err(|_| {
             ArcError::invalid_path(format!("cannot resolve path: {}", path.display()))
         })?;
@@ -63,14 +60,12 @@ impl Repository {
     }
 
     pub fn discover(from: &Path) -> Result<Self> {
-        debug!("discovering repository from {}", from.display());
         let mut current = from.canonicalize().map_err(|_| {
             ArcError::invalid_path(format!("cannot resolve path: {}", from.display()))
         })?;
 
         loop {
             if current.join(ARC_DIR).is_dir() {
-                debug!("found repository at {}", current.display());
                 return Self::open(&current);
             }
             if !current.pop() {
@@ -104,14 +99,12 @@ impl Repository {
     }
 
     pub fn load_head(&self) -> Result<Head> {
-        debug!("loading HEAD from {}", self.head_path().display());
         let contents = fs::read_to_string(self.head_path())?;
         let head: Head = serde_yaml::from_str(&contents)?;
         Ok(head)
     }
 
     pub fn save_head(&self, head: &Head) -> Result<()> {
-        debug!("saving HEAD: {:?}", head);
         let yaml = serde_yaml::to_string(head)?;
         fs::write(self.head_path(), yaml)?;
         Ok(())
diff --git a/src/resolve.rs b/src/resolve.rs
index 3806a87..a30849a 100644
--- a/src/resolve.rs
+++ b/src/resolve.rs
@@ -7,11 +7,8 @@ use crate::store::CommitObject;
 use crate::tracking;
 
 pub fn resolve_target(repo: &Repository, target: &str) -> Result<CommitId> {
-    debug!("resolving target '{}'", target);
     if target == "HEAD" {
-        let id = tracking::resolve_head_commit(repo)?.ok_or(ArcError::NoCommitsYet)?;
-        debug!("resolved '{}' to {}", target, &id.0);
-        return Ok(id);
+        return tracking::resolve_head_commit(repo)?.ok_or(ArcError::NoCommitsYet);
     }
 
     if crate::repo::validate_ref_name(target).is_ok() {
@@ -20,7 +17,6 @@ pub fn resolve_target(repo: &Repository, target: &str) -> Result<CommitId> {
             let contents = fs::read_to_string(&bookmark_path)?;
             let ref_target: RefTarget = serde_yaml::from_str(&contents)?;
             if let Some(id) = ref_target.commit {
-                debug!("resolved '{}' to {}", target, &id.0);
                 return Ok(id);
             }
         }
@@ -30,19 +26,15 @@ pub fn resolve_target(repo: &Repository, target: &str) -> Result<CommitId> {
             let contents = fs::read_to_string(&tag_path)?;
             let ref_target: RefTarget = serde_yaml::from_str(&contents)?;
             if let Some(id) = ref_target.commit {
-                debug!("resolved '{}' to {}", target, &id.0);
                 return Ok(id);
             }
         }
     }
 
-    let id = resolve_commit_prefix(repo, target)?;
-    debug!("resolved '{}' to {}", target, &id.0);
-    Ok(id)
+    resolve_commit_prefix(repo, target)
 }
 
 fn resolve_commit_prefix(repo: &Repository, prefix: &str) -> Result<CommitId> {
-    debug!("searching commits with prefix '{}'", prefix);
     let commits_dir = repo.commits_dir();
     let entries = match fs::read_dir(&commits_dir) {
         Ok(e) => e,
@@ -59,7 +51,6 @@ fn resolve_commit_prefix(repo: &Repository, prefix: &str) -> Result<CommitId> {
         }
     }
 
-    debug!("found {} match(es) for prefix '{}'", matches.len(), prefix);
     match matches.len() {
         0 => Err(ArcError::UnknownRevision(prefix.to_string())),
         1 => {
@@ -79,7 +70,6 @@ pub struct ResolvedRange {
 }
 
 pub fn parse_and_resolve_range(repo: &Repository, spec: Option<&str>) -> Result<ResolvedRange> {
-    debug!("parsing range: {:?}", spec);
     let (start, end) = parse_range_spec(spec)?;
 
     let end_target = end.as_deref().unwrap_or("HEAD");
diff --git a/src/signing.rs b/src/signing.rs
index f6a0679..dfd5885 100644
--- a/src/signing.rs
+++ b/src/signing.rs
@@ -10,7 +10,6 @@ const NAMESPACE: &str = "arc";
 ///
 /// Returns the signature as a PEM-encoded string.
 pub fn sign(key_path: &str, data: &[u8]) -> Result<String> {
-    debug!("signing with key {key_path}");
     let expanded = expand_path(key_path);
     let path = Path::new(&expanded);
 
@@ -28,7 +27,6 @@ pub fn sign(key_path: &str, data: &[u8]) -> Result<String> {
 ///
 /// The public key is extracted from the signature itself for verification.
 pub fn verify(signature_pem: &str, data: &[u8]) -> Result<bool> {
-    debug!("verifying signature");
     let sig: SshSig = signature_pem
         .parse()
         .map_err(|e| ArcError::SigningError(format!("invalid signature: {e}")))?;
diff --git a/src/stash.rs b/src/stash.rs
index 30da72e..b9addce 100644
--- a/src/stash.rs
+++ b/src/stash.rs
@@ -93,7 +93,6 @@ fn save_stash_file(repo: &Repository, name: &str, file: &StashFile) -> Result<()
 
 /// Create a new named stash and set it as active.
 pub fn create(repo: &Repository, name: &str) -> Result<()> {
-    debug!("creating stash '{}'", name);
     repo::validate_ref_name(name)?;
     fs::create_dir_all(stash_named_dir(repo))?;
 
@@ -115,7 +114,6 @@ pub fn create(repo: &Repository, name: &str) -> Result<()> {
 
 /// Switch the active stash to an existing named stash.
 pub fn use_stash(repo: &Repository, name: &str) -> Result<()> {
-    debug!("switching to stash '{}'", name);
     repo::validate_ref_name(name)?;
 
     let path = stash_file_path(repo, name);
@@ -133,7 +131,6 @@ pub fn use_stash(repo: &Repository, name: &str) -> Result<()> {
 
 /// Push current dirty changes onto the active stash and reset the worktree.
 pub fn push(repo: &Repository) -> Result<String> {
-    debug!("pushing changes to active stash");
     let state = load_state(repo)?;
     let name = state.active.ok_or(ArcError::NoActiveStash)?;
     repo::validate_ref_name(&name)?;
@@ -213,13 +210,11 @@ pub fn push(repo: &Repository) -> Result<String> {
     refs::remove_empty_dirs(&repo.workdir)?;
 
     let n = changes.len();
-    debug!("pushed {} change(s) to stash '{}'", n, name);
     Ok(format!("pushed {n} change(s) to stash '{name}'"))
 }
 
 /// Pop the most recent entry from the active stash and apply it to the worktree.
 pub fn pop(repo: &Repository) -> Result<String> {
-    debug!("popping from active stash");
     let state = load_state(repo)?;
     let name = state.active.ok_or(ArcError::NoActiveStash)?;
     repo::validate_ref_name(&name)?;
@@ -238,11 +233,6 @@ pub fn pop(repo: &Repository) -> Result<String> {
         .entries
         .pop()
         .ok_or_else(|| ArcError::StashEmpty(name.clone()))?;
-    debug!(
-        "popping {} change(s) from stash '{}'",
-        entry.changes.len(),
-        name
-    );
     let head_commit = tracking::resolve_head_commit(repo)?;
 
     if entry.base != head_commit {
@@ -281,7 +271,6 @@ pub fn pop(repo: &Repository) -> Result<String> {
 
 /// Remove a named stash. If it was active, deactivate it.
 pub fn rm(repo: &Repository, name: &str) -> Result<()> {
-    debug!("removing stash '{}'", name);
     repo::validate_ref_name(name)?;
 
     let path = stash_file_path(repo, name);
@@ -302,7 +291,6 @@ pub fn rm(repo: &Repository, name: &str) -> Result<()> {
 
 /// List all named stashes, marking the active one.
 pub fn list(repo: &Repository) -> Result<String> {
-    debug!("listing stashes");
     let state = load_state(repo)?;
     let active = state.active.as_deref();
 
diff --git a/src/store.rs b/src/store.rs
index 36a82e7..ab133d1 100644
--- a/src/store.rs
+++ b/src/store.rs
@@ -20,7 +20,6 @@ pub fn commit_object_path(repo: &Repository, id: &CommitId) -> PathBuf {
 }
 
 pub fn write_commit_object(repo: &Repository, obj: &CommitObject) -> Result<()> {
-    debug!("writing commit object {}", obj.commit.id.0);
     let msgpack = rmp_serde::to_vec(obj)?;
     let compressed =
         zstd::stream::encode_all(Cursor::new(&msgpack), 3).map_err(std::io::Error::other)?;
@@ -35,7 +34,6 @@ pub fn write_commit_object(repo: &Repository, obj: &CommitObject) -> Result<()>
 }
 
 pub fn read_commit_object(repo: &Repository, id: &CommitId) -> Result<CommitObject> {
-    debug!("reading commit object {}", id.0);
     let path = commit_object_path(repo, id);
     let compressed = fs::read(&path)?;
     let mut decoder =
@@ -70,7 +68,6 @@ struct CommitForHash<'a> {
 }
 
 pub fn compute_delta_id(base: &Option<CommitId>, changes: &[FileChange]) -> Result<DeltaId> {
-    debug!("computing delta id (base: {:?})", base);
     let hashable = DeltaForHash { base, changes };
     let bytes = rmp_serde::to_vec(&hashable)
         .map_err(|e| crate::error::ArcError::HashError(e.to_string()))?;
@@ -84,7 +81,6 @@ pub fn compute_commit_id(
     author: &Option<Signature>,
     timestamp: i64,
 ) -> Result<CommitId> {
-    debug!("computing commit id for message: {}", message);
     let hashable = CommitForHash {
         parents,
         delta,
diff --git a/src/tracking.rs b/src/tracking.rs
index 1aa64c9..eb1c066 100644
--- a/src/tracking.rs
+++ b/src/tracking.rs
@@ -14,10 +14,8 @@ use crate::ui;
 pub type FileTree = BTreeMap<String, Vec<u8>>;
 
 pub fn scan_worktree(repo: &Repository, ignore: &IgnoreRules) -> Result<FileTree> {
-    debug!("scanning worktree at {}", repo.workdir.display());
     let mut tree = BTreeMap::new();
     scan_dir(&repo.workdir, &repo.workdir, ignore, &mut tree)?;
-    debug!("found {} file(s) in worktree", tree.len());
     Ok(tree)
 }
 
@@ -63,18 +61,15 @@ fn to_rel_string(root: &Path, abs: &Path) -> String {
 }
 
 pub fn materialize_committed_tree(repo: &Repository, head: &CommitId) -> Result<FileTree> {
-    debug!("materializing tree at commit {}", head.0);
     let history = load_linear_history(repo, head)?;
     let mut tree = BTreeMap::new();
     for obj in &history {
         apply_delta(&mut tree, &obj.delta);
     }
-    debug!("materialized tree with {} file(s)", tree.len());
     Ok(tree)
 }
 
 pub fn load_linear_history(repo: &Repository, head: &CommitId) -> Result<Vec<CommitObject>> {
-    debug!("loading history from {}", head.0);
     let mut chain = Vec::new();
     let mut current = head.clone();
 
@@ -89,7 +84,6 @@ pub fn load_linear_history(repo: &Repository, head: &CommitId) -> Result<Vec<Com
     }
 
     chain.reverse();
-    debug!("loaded {} commit(s) in history chain", chain.len());
     Ok(chain)
 }
 
@@ -152,31 +146,19 @@ pub fn detect_changes(committed: &FileTree, worktree: &FileTree) -> Vec<FileChan
         }
     }
 
-    debug!("detected {} change(s)", changes.len());
     changes
 }
 
 pub fn resolve_head_commit(repo: &Repository) -> Result<Option<CommitId>> {
-    debug!("resolving HEAD commit");
     let head = repo.load_head()?;
     match head {
-        Head::Unborn { .. } => {
-            debug!("HEAD is unborn");
-            Ok(None)
-        }
-        Head::Attached { commit, .. } => {
-            debug!("HEAD at {}", commit.0);
-            Ok(Some(commit))
-        }
-        Head::Detached { commit } => {
-            debug!("HEAD at {}", commit.0);
-            Ok(Some(commit))
-        }
+        Head::Unborn { .. } => Ok(None),
+        Head::Attached { commit, .. } => Ok(Some(commit)),
+        Head::Detached { commit } => Ok(Some(commit)),
     }
 }
 
 pub fn commit(repo: &Repository, message: &str) -> Result<CommitId> {
-    debug!("committing with message: {}", message);
     let ignore = IgnoreRules::load(&repo.workdir);
     let head = repo.load_head()?;
     let head_commit = resolve_head_commit(repo)?;
@@ -188,7 +170,6 @@ pub fn commit(repo: &Repository, message: &str) -> Result<CommitId> {
 
     let worktree = scan_worktree(repo, &ignore)?;
     let changes = detect_changes(&committed, &worktree);
-    debug!("found {} change(s) to commit", changes.len());
 
     if changes.is_empty() {
         return Err(ArcError::NothingToCommit);
@@ -250,7 +231,6 @@ pub fn commit(repo: &Repository, message: &str) -> Result<CommitId> {
 
     crate::refs::update_refs_after_commit(repo, &head, &commit_id)?;
 
-    debug!("created commit {}", commit_id.0);
     Ok(commit_id)
 }
 
@@ -337,7 +317,6 @@ impl fmt::Display for StatusReport {
 }
 
 pub fn status(repo: &Repository) -> Result<(StatusReport, Vec<FileChange>)> {
-    debug!("computing status");
     let ignore = IgnoreRules::load(&repo.workdir);
     let head_commit = resolve_head_commit(repo)?;
 
diff --git a/src/ui.rs b/src/ui.rs
index 1507fab..c80e47a 100644
--- a/src/ui.rs
+++ b/src/ui.rs
@@ -1,14 +1,5 @@
 use colored::Colorize;
 
-#[macro_export]
-macro_rules! debug {
-    ($($arg:tt)*) => {
-        if $crate::cli::verbose() {
-            eprintln!("{} {}", $crate::ui::SYM_ARROW, format!($($arg)*));
-        }
-    };
-}
-
 pub const SYM_ARROW: &str = "▸";
 pub const SYM_CHECK: &str = "✓";
 pub const SYM_CROSS: &str = "✗";