diff --git a/src/clean.rs b/src/clean.rs
index 2b99a56..a84f35f 100644
--- a/src/clean.rs
+++ b/src/clean.rs
@@ -252,7 +252,7 @@ fn profiles_in_dir<P: AsRef<Path> + fmt::Debug>(dir: P) -> Vec<PathBuf> {
 
                             let generation_regex = Regex::new(r"^(.*)-(\d+)-link$").unwrap();
 
-                            if let Some(_) = generation_regex.captures(&name) {
+                            if generation_regex.captures(&name).is_some() {
                                 res.push(path);
                             }
                         }
diff --git a/src/darwin.rs b/src/darwin.rs
new file mode 100644
index 0000000..4e5e963
--- /dev/null
+++ b/src/darwin.rs
@@ -0,0 +1,30 @@
+use crate::interface::{DarwinArgs, DarwinRebuildArgs, DarwinReplArgs, DarwinSubcommand};
+use crate::Result;
+
+impl DarwinArgs {
+    pub fn run(self) -> Result<()> {
+        use DarwinRebuildVariant::*;
+        match self.subcommand {
+            DarwinSubcommand::Switch(args) => args.rebuild(Switch),
+            DarwinSubcommand::Build(args) => args.rebuild(Build),
+            DarwinSubcommand::Repl(args) => args.run(),
+        }
+    }
+}
+
+enum DarwinRebuildVariant {
+    Switch,
+    Build,
+}
+
+impl DarwinRebuildArgs {
+    fn rebuild(self, _variant: DarwinRebuildVariant) -> Result<()> {
+        todo!();
+    }
+}
+
+impl DarwinReplArgs {
+    fn run(self) -> Result<()> {
+        todo!();
+    }
+}
diff --git a/src/home.rs b/src/home.rs
index 4b205bd..ca628ac 100644
--- a/src/home.rs
+++ b/src/home.rs
@@ -10,11 +10,6 @@ use crate::commands::Command;
 use crate::installable::Installable;
 use crate::interface::{self, HomeRebuildArgs};
 
-const SYSTEM_PROFILE: &str = "/nix/var/nix/profiles/system";
-const CURRENT_PROFILE: &str = "/run/current-system";
-
-const SPEC_LOCATION: &str = "/etc/specialisation";
-
 impl interface::HomeArgs {
     pub fn run(self) -> Result<()> {
         use HomeRebuildVariant::*;
diff --git a/src/interface.rs b/src/interface.rs
index f998768..1a336b7 100644
--- a/src/interface.rs
+++ b/src/interface.rs
@@ -44,9 +44,10 @@ pub struct Main {
 #[command(disable_help_subcommand = true)]
 pub enum NHCommand {
     Os(OsArgs),
+    Home(HomeArgs),
+    Darwin(DarwinArgs),
     Search(SearchArgs),
     Clean(CleanProxy),
-    Home(HomeArgs),
     #[command(hide = true)]
     Completions(CompletionArgs),
 }
@@ -59,6 +60,7 @@ impl NHCommand {
             NHCommand::Clean(proxy) => proxy.command.run(),
             NHCommand::Completions(args) => args.run(),
             NHCommand::Home(args) => args.run(),
+            NHCommand::Darwin(args) => args.run(),
         }
     }
 }
@@ -279,3 +281,28 @@ pub struct CompletionArgs {
     /// Name of the shell
     pub shell: clap_complete::Shell,
 }
+
+#[derive(Debug, Args)]
+pub struct DarwinArgs {
+    #[command(subcommand)]
+    pub subcommand: DarwinSubcommand,
+}
+
+#[derive(Debug, Subcommand)]
+pub enum DarwinSubcommand {
+    Switch(DarwinRebuildArgs),
+    Build(DarwinRebuildArgs),
+    Repl(DarwinReplArgs),
+}
+
+#[derive(Debug, Args)]
+pub struct DarwinRebuildArgs {
+    #[command(flatten)]
+    pub common: CommonRebuildArgs,
+}
+
+#[derive(Debug, Args)]
+pub struct DarwinReplArgs {
+    #[command(flatten)]
+    pub installable: Installable,
+}
diff --git a/src/main.rs b/src/main.rs
index 1a42867..93368d9 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,6 +1,7 @@
 mod clean;
 mod commands;
 mod completion;
+mod darwin;
 mod home;
 mod installable;
 mod interface;
diff --git a/src/search.rs b/src/search.rs
index 9f511a8..726f566 100644
--- a/src/search.rs
+++ b/src/search.rs
@@ -1,7 +1,7 @@
 use std::process::Stdio;
 use std::time::Instant;
 
-use color_eyre::eyre::{bail, Context, ContextCompat};
+use color_eyre::eyre::{bail, Context};
 use elasticsearch_dsl::*;
 use interface::SearchArgs;
 use regex::Regex;