diff --git a/src/api.rs b/src/api.rs
index b589c25..0152a2f 100644
--- a/src/api.rs
+++ b/src/api.rs
@@ -33,6 +33,7 @@ pub struct IntermediaryTag {
     name: String,
 }
 
+// TODO: actual error handling
 pub fn get_tags(repo: &str, owner: &str) -> Result<Tags, ()> {
     let tags = query_tags(repo, owner).unwrap();
     Ok(tags.into())
diff --git a/src/bin/flake-edit/app.rs b/src/bin/flake-edit/app.rs
index 07f3856..8685d91 100644
--- a/src/bin/flake-edit/app.rs
+++ b/src/bin/flake-edit/app.rs
@@ -31,28 +31,19 @@ impl FlakeEdit {
     pub fn root(&self) -> &FlakeBuf {
         &self.root
     }
-
-    pub fn run(&self) -> Result<(), FeError> {
-        Ok(())
-    }
 }
 
 #[derive(Debug, Default)]
 pub struct FlakeBuf {
     text: Rope,
     path: String,
-    dirty: bool,
 }
 
 impl FlakeBuf {
     fn from_path(path: PathBuf) -> io::Result<Self> {
         let text = Rope::from_reader(&mut io::BufReader::new(File::open(&path)?))?;
         let path = path.display().to_string();
-        Ok(Self {
-            text,
-            path,
-            dirty: false,
-        })
+        Ok(Self { text, path })
     }
 
     pub fn text(&self) -> &Rope {
diff --git a/src/bin/flake-edit/cli.rs b/src/bin/flake-edit/cli.rs
index f3dac91..7bb046c 100644
--- a/src/bin/flake-edit/cli.rs
+++ b/src/bin/flake-edit/cli.rs
@@ -138,9 +138,6 @@ impl From<String> for CompletionMode {
     }
 }
 
-#[derive(Debug, Clone)]
-pub(crate) enum Parameter {}
-
 #[derive(Debug, Clone, Default)]
 pub(crate) enum ListFormat {
     None,
diff --git a/src/bin/flake-edit/main.rs b/src/bin/flake-edit/main.rs
index befa546..0d0f425 100644
--- a/src/bin/flake-edit/main.rs
+++ b/src/bin/flake-edit/main.rs
@@ -12,7 +12,6 @@ use flake_edit::change::Change;
 use flake_edit::diff::Diff;
 use flake_edit::edit;
 use flake_edit::input::Follows;
-use flake_edit::input::Input;
 use flake_edit::update::Updater;
 use nix_uri::urls::UrlWrapper;
 use nix_uri::{FlakeRef, NixUriResult};
@@ -120,17 +119,6 @@ fn main() -> eyre::Result<()> {
                 std::process::exit(0);
             }
         },
-        Command::Add {
-            id,
-            uri,
-            ref_or_rev,
-            force,
-            no_flake,
-        } => todo!(),
-        Command::Pin { id } => todo!(),
-        Command::Change { id, uri } => todo!(),
-        Command::Remove { id } => todo!(),
-        Command::Completion { inputs, mode } => todo!(),
     }
 
     if let Ok(Some(resulting_change)) = editor.apply_change(change.clone()) {
diff --git a/src/input.rs b/src/input.rs
index 6fc6d26..c0c37bf 100644
--- a/src/input.rs
+++ b/src/input.rs
@@ -33,29 +33,6 @@ pub enum Follows {
     Direct(String, Input),
 }
 
-impl Follows {}
-
-#[derive(Debug, Default)]
-pub(crate) struct FollowsBuilder {
-    attrs: Vec<String>,
-}
-
-impl FollowsBuilder {
-    pub(crate) fn push_str(&mut self, attr: &str) -> Option<Follows> {
-        self.attrs.push(attr.to_owned());
-        if self.attrs.len() == 4 {
-            Some(self.build())
-        } else {
-            None
-        }
-    }
-    fn build(&self) -> Follows {
-        let from = self.attrs.get(1).unwrap();
-        let to = self.attrs.get(3).unwrap();
-        Follows::Indirect(from.to_owned(), to.to_owned())
-    }
-}
-
 impl Default for Input {
     fn default() -> Self {
         Self {
diff --git a/src/lib.rs b/src/lib.rs
index 682f184..daa18a8 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -5,7 +5,6 @@ pub mod diff;
 pub mod edit;
 pub mod error;
 pub mod input;
-mod semver;
 pub mod state;
 pub mod update;
 pub mod walk;
diff --git a/src/semver.rs b/src/semver.rs
deleted file mode 100644
index c794222..0000000
--- a/src/semver.rs
+++ /dev/null
@@ -1,11 +0,0 @@
-use semver::Version;
-
-pub struct Semver {
-    version: semver::Version,
-}
-
-impl Semver {
-    pub fn new(version: semver::Version) -> Self {
-        Self { version }
-    }
-}
diff --git a/src/update.rs b/src/update.rs
index 9771889..a58f396 100644
--- a/src/update.rs
+++ b/src/update.rs
@@ -40,7 +40,6 @@ impl Updater {
     }
 
     pub fn change_input(&mut self, input: &UpdateInput) {
-        let change = input.update();
         let uri = self
             .text
             .slice(
@@ -53,10 +52,12 @@ impl Updater {
                 let mut maybe_version = String::new();
                 let is_params = &parsed.params.get_ref().is_some();
 
-                if let nix_uri::FlakeRefType::GitHub { ref_or_rev, .. } = &parsed.r#type {
-                    if let Some(ref_or_rev) = ref_or_rev {
-                        maybe_version = ref_or_rev.into();
-                    }
+                if let nix_uri::FlakeRefType::GitHub {
+                    ref_or_rev: Some(ref_or_rev),
+                    ..
+                } = &parsed.r#type
+                {
+                    maybe_version = ref_or_rev.into();
                 }
                 if let Some(r#ref) = &parsed.params.get_ref() {
                     maybe_version = r#ref.to_string();
@@ -147,9 +148,3 @@ impl PartialOrd for UpdateInput {
 }
 
 impl Eq for UpdateInput {}
-
-impl UpdateInput {
-    fn update(&self) -> &str {
-        "1.3.4"
-    }
-}
diff --git a/src/walk.rs b/src/walk.rs
index 0368b92..833f8ea 100644
--- a/src/walk.rs
+++ b/src/walk.rs
@@ -298,6 +298,7 @@ impl<'a> Walker {
     /// - description
     /// - inputs
     /// - outputs
+    #[allow(clippy::option_map_unit_fn)]
     fn walk_toplevel(
         &mut self,
         node: SyntaxNode,