diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 31bf1f7..a938dbb 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -39,17 +39,6 @@ jobs:
       - name: Check nixpkgs-fmt formatting
         run: nix develop --command ci-check-nixpkgs-fmt
 
-  RegistryFormatting:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-      - uses: cachix/install-nix-action@v17
-        with:
-          extra_nix_config: |
-            access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
-      - name: Check registry.json formatting
-        run: nix develop --command ci-check-registry-format
-
   EditorConfig:
     runs-on: ubuntu-latest
     steps:
diff --git a/Cargo.lock b/Cargo.lock
index c4fd274..5a21915 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -606,7 +606,7 @@ dependencies = [
 
 [[package]]
 name = "harmonic"
-version = "0.0.1"
+version = "0.0.0-unreleased"
 dependencies = [
  "async-tar",
  "async-trait",
diff --git a/Cargo.toml b/Cargo.toml
index 03e52ce..63fd5c7 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "harmonic"
 description = "A `nix` installer"
-version = "0.0.1"
+version = "0.0.0-unreleased"
 edition = "2021"
 resolver = "2"
 
diff --git a/nix/ci.nix b/nix/ci.nix
index e5017d5..6bb6b2f 100644
--- a/nix/ci.nix
+++ b/nix/ci.nix
@@ -24,11 +24,6 @@ in
     git ls-files '*.nix' | xargs | nixpkgs-fmt --check
   '')
 
-  # RegistryFormatting
-  (writeScriptBin "ci-check-registry-format" ''
-    ./registry/format.sh && git diff --exit-code
-  '')
-
   # EditorConfig
   (writeScriptBin "ci-check-editorconfig" ''
     eclint
@@ -39,7 +34,6 @@ in
     ci-test-rust
     ci-check-spelling
     ci-check-nixpkgs-fmt
-    ci-check-registry-format
     ci-check-editorconfig
   '')
 ]
diff --git a/src/cli/arg/instrumentation.rs b/src/cli/arg/instrumentation.rs
index 13efbb4..efd5569 100644
--- a/src/cli/arg/instrumentation.rs
+++ b/src/cli/arg/instrumentation.rs
@@ -8,13 +8,7 @@ use valuable::Valuable;
 #[derive(clap::Args, Debug, Valuable)]
 pub struct Instrumentation {
     /// Enable debug logs, -vv for trace
-    #[clap(
-        short = 'v',
-        long,
-        parse(from_occurrences),
-        global = true,
-        group = "verbosity"
-    )]
+    #[clap(short = 'v', long, parse(from_occurrences), global = true)]
     pub(crate) verbose: usize,
 }
 
diff --git a/src/cli/mod.rs b/src/cli/mod.rs
index 9f43ebd..20a2723 100644
--- a/src/cli/mod.rs
+++ b/src/cli/mod.rs
@@ -11,22 +11,34 @@ pub(crate) trait CommandExecute {
     async fn execute(self) -> eyre::Result<ExitCode>;
 }
 
+/// An opinionated, experimental Nix installer
 #[derive(Debug, Parser)]
 #[clap(version)]
 pub(crate) struct HarmonicCli {
-    #[clap(long, action(ArgAction::SetTrue), default_value = "false")]
+    // Don't actually install, just log expected actions
+    #[clap(
+        long,
+        action(ArgAction::SetTrue),
+        default_value = "false",
+        global = true
+    )]
     pub(crate) dry_run: bool,
     #[clap(flatten)]
     pub(crate) instrumentation: arg::Instrumentation,
+    /// Channel(s) to add by default, pass multiple times for multiple channels
     #[clap(
         long,
         value_parser,
+        action = clap::ArgAction::Append,
+        env = "HARMONIC_CHANNEL",
         default_value = "nixpkgs=https://nixos.org/channels/nixpkgs-unstable"
     )]
-    pub(crate) channels: Vec<arg::ChannelValue>,
+    pub(crate) channel: Vec<arg::ChannelValue>,
+    /// Don't modify the user profile to automatically load nix
     #[clap(long)]
     pub(crate) no_modify_profile: bool,
-    #[clap(long, default_value = "32")]
+    /// Number of build users to create
+    #[clap(long, default_value = "32", env = "HARMONIC_NIX_DAEMON_USER_COUNT")]
     pub(crate) daemon_user_count: usize,
     #[clap(subcommand)]
     subcommand: Option<subcommand::Subcommand>,
@@ -35,7 +47,7 @@ pub(crate) struct HarmonicCli {
 #[async_trait::async_trait]
 impl CommandExecute for HarmonicCli {
     #[tracing::instrument(skip_all, fields(
-        channels = %self.channels.iter().map(|ChannelValue(name, url)| format!("{name} {url}")).collect::<Vec<_>>().join(", "),
+        channels = %self.channel.iter().map(|ChannelValue(name, url)| format!("{name} {url}")).collect::<Vec<_>>().join(", "),
         daemon_user_count = %self.daemon_user_count,
         no_modify_profile = %self.no_modify_profile,
         dry_run = %self.dry_run,
@@ -45,12 +57,13 @@ impl CommandExecute for HarmonicCli {
             dry_run,
             instrumentation: _,
             daemon_user_count,
-            channels,
+            channel,
             no_modify_profile,
             subcommand,
         } = self;
 
         match subcommand {
+            #[cfg(target_os = "linux")]
             Some(subcommand::Subcommand::NixOs(nixos)) => return nixos.execute().await,
             None => (),
         }
@@ -60,13 +73,31 @@ impl CommandExecute for HarmonicCli {
         harmonic.dry_run(dry_run);
         harmonic.daemon_user_count(daemon_user_count);
         harmonic.channels(
-            channels
+            channel
                 .into_iter()
                 .map(|ChannelValue(name, url)| (name, url)),
         );
         harmonic.modify_profile(!no_modify_profile);
 
-        if !interaction::confirm("Are you ready to continue?").await? {
+        // TODO(@Hoverbear): Make this smarter
+        if !interaction::confirm(
+            "\
+            Ready to install nix?\n\
+            \n\
+            This installer will:\n\
+            \n\
+            * Create a `nixbld` group\n\
+            * Create several `nixbld*` users\n\
+            * Create several Nix related directories\n\
+            * Place channel configurations\n\
+            * Fetch a copy of Nix and unpack it\n\
+            * Configure the shell profiles of various shells\n\
+            * Place a Nix configuration\n\
+            * Configure the Nix daemon to work with your init\
+        ",
+        )
+        .await?
+        {
             interaction::clean_exit_with_message("Okay, didn't do anything! Bye!").await;
         }
 
@@ -78,7 +109,6 @@ impl CommandExecute for HarmonicCli {
         harmonic.configure_shell_profile().await?;
         harmonic.setup_default_profile().await?;
         harmonic.place_nix_configuration().await?;
-
         harmonic.configure_nix_daemon_service().await?;
 
         Ok(ExitCode::SUCCESS)