diff --git a/Cargo.lock b/Cargo.lock
index 530b3aa..a9b85c0 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -17,6 +17,15 @@ version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"
 
+[[package]]
+name = "android_system_properties"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "819e7219dbd41043ac279b19830f2efc897156490d7fd6ea916720117ee66311"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "ansi_term"
 version = "0.12.1"
@@ -262,6 +271,19 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
+[[package]]
+name = "chrono"
+version = "0.4.22"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bfd4d1b31faaa3a89d7934dbded3111da0d2ef28e3ebccdb4f0179f5929d1ef1"
+dependencies = [
+ "iana-time-zone",
+ "num-integer",
+ "num-traits",
+ "serde",
+ "winapi",
+]
+
 [[package]]
 name = "clap"
 version = "4.0.10"
@@ -299,6 +321,16 @@ dependencies = [
  "os_str_bytes",
 ]
 
+[[package]]
+name = "codespan-reporting"
+version = "0.11.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3538270d33cc669650c4b093848450d380def10c331d38c768e34cac80576e6e"
+dependencies = [
+ "termcolor",
+ "unicode-width",
+]
+
 [[package]]
 name = "color-eyre"
 version = "0.6.2"
@@ -335,6 +367,12 @@ dependencies = [
  "cache-padded",
 ]
 
+[[package]]
+name = "core-foundation-sys"
+version = "0.8.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5827cebf4670468b8772dd191856768aedcb1b0278a04f989f7766351917b9dc"
+
 [[package]]
 name = "crossbeam-utils"
 version = "0.8.11"
@@ -381,6 +419,85 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "cxx"
+version = "1.0.78"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "19f39818dcfc97d45b03953c1292efc4e80954e1583c4aa770bac1383e2310a4"
+dependencies = [
+ "cc",
+ "cxxbridge-flags",
+ "cxxbridge-macro",
+ "link-cplusplus",
+]
+
+[[package]]
+name = "cxx-build"
+version = "1.0.78"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3e580d70777c116df50c390d1211993f62d40302881e54d4b79727acb83d0199"
+dependencies = [
+ "cc",
+ "codespan-reporting",
+ "once_cell",
+ "proc-macro2",
+ "quote",
+ "scratch",
+ "syn",
+]
+
+[[package]]
+name = "cxxbridge-flags"
+version = "1.0.78"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "56a46460b88d1cec95112c8c363f0e2c39afdb237f60583b0b36343bf627ea9c"
+
+[[package]]
+name = "cxxbridge-macro"
+version = "1.0.78"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "747b608fecf06b0d72d440f27acc99288207324b793be2c17991839f3d4995ea"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "darling"
+version = "0.14.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4529658bdda7fd6769b8614be250cdcfc3aeb0ee72fe66f9e41e5e5eb73eac02"
+dependencies = [
+ "darling_core",
+ "darling_macro",
+]
+
+[[package]]
+name = "darling_core"
+version = "0.14.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "649c91bc01e8b1eac09fb91e8dbc7d517684ca6be8ebc75bb9cafc894f9fdb6f"
+dependencies = [
+ "fnv",
+ "ident_case",
+ "proc-macro2",
+ "quote",
+ "strsim",
+ "syn",
+]
+
+[[package]]
+name = "darling_macro"
+version = "0.14.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ddfc69c5bfcbd2fc09a0f38451d2daf0e372e367986a83906d1b0dbc88134fb5"
+dependencies = [
+ "darling_core",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "encoding_rs"
 version = "0.8.31"
@@ -640,6 +757,7 @@ dependencies = [
  "reqwest",
  "serde",
  "serde_json",
+ "serde_with",
  "tar",
  "target-lexicon",
  "tempdir",
@@ -677,6 +795,12 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "hex"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70"
+
 [[package]]
 name = "http"
 version = "0.2.8"
@@ -748,6 +872,36 @@ dependencies = [
  "tokio-rustls",
 ]
 
+[[package]]
+name = "iana-time-zone"
+version = "0.1.51"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f5a6ef98976b22b3b7f2f3a806f858cb862044cfa66805aa3ad84cb3d3b785ed"
+dependencies = [
+ "android_system_properties",
+ "core-foundation-sys",
+ "iana-time-zone-haiku",
+ "js-sys",
+ "wasm-bindgen",
+ "winapi",
+]
+
+[[package]]
+name = "iana-time-zone-haiku"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fde6edd6cef363e9359ed3c98ba64590ba9eecba2293eb5a723ab32aee8926aa"
+dependencies = [
+ "cxx",
+ "cxx-build",
+]
+
+[[package]]
+name = "ident_case"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b9e0384b61958566e926dc50660321d12159025e767c18e043daf26b70104c39"
+
 [[package]]
 name = "idna"
 version = "0.3.0"
@@ -772,6 +926,7 @@ checksum = "10a35a97730320ffe8e2d410b5d3b69279b98d2c14bdb8b70ea89ecf7888d41e"
 dependencies = [
  "autocfg",
  "hashbrown",
+ "serde",
 ]
 
 [[package]]
@@ -850,6 +1005,15 @@ version = "0.2.132"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8371e4e5341c3a96db127eb2465ac681ced4c433e01dd0e938adbef26ba93ba5"
 
+[[package]]
+name = "link-cplusplus"
+version = "1.0.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9272ab7b96c9046fbc5bc56c06c117cb639fe2d509df0c421cad82d2915cf369"
+dependencies = [
+ "cc",
+]
+
 [[package]]
 name = "lock_api"
 version = "0.4.8"
@@ -935,6 +1099,25 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "num-integer"
+version = "0.1.45"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "225d3389fb3509a24c93f5c29eb6bde2586b98d9f016636dff58d7c6f7569cd9"
+dependencies = [
+ "autocfg",
+ "num-traits",
+]
+
+[[package]]
+name = "num-traits"
+version = "0.2.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "578ede34cf02f8924ab9447f50c28075b4d3e5b269972345e7e0372b38c6cdcd"
+dependencies = [
+ "autocfg",
+]
+
 [[package]]
 name = "num_cpus"
 version = "1.13.1"
@@ -945,6 +1128,15 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "num_threads"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2819ce041d2ee131036f4fc9d6ae7ae125a3a40e97ba64d04fe799ad9dabbb44"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "object"
 version = "0.29.0"
@@ -1286,6 +1478,12 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
 
+[[package]]
+name = "scratch"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9c8132065adcfd6e02db789d9285a0deb2f3fcb04002865ab67d5fb103533898"
+
 [[package]]
 name = "sct"
 version = "0.7.0"
@@ -1339,6 +1537,34 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "serde_with"
+version = "2.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "368f2d60d049ea019a84dcd6687b0d1e0030fe663ae105039bdf967ed5e6a9a7"
+dependencies = [
+ "base64",
+ "chrono",
+ "hex",
+ "indexmap",
+ "serde",
+ "serde_json",
+ "serde_with_macros",
+ "time",
+]
+
+[[package]]
+name = "serde_with_macros"
+version = "2.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1ccadfacf6cf10faad22bbadf55986bdd0856edfb5d9210aa1dcf1f516e84e93"
+dependencies = [
+ "darling",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "sharded-slab"
 version = "0.1.4"
@@ -1501,6 +1727,18 @@ dependencies = [
  "once_cell",
 ]
 
+[[package]]
+name = "time"
+version = "0.3.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d634a985c4d4238ec39cacaed2e7ae552fbd3c476b552c1deac3021b7d7eaf0c"
+dependencies = [
+ "itoa",
+ "libc",
+ "num_threads",
+ "serde",
+]
+
 [[package]]
 name = "tinyvec"
 version = "1.6.0"
@@ -1728,6 +1966,12 @@ dependencies = [
  "tinyvec",
 ]
 
+[[package]]
+name = "unicode-width"
+version = "0.1.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c0edd1e5b14653f783770bce4a4dabb4a5108a5370a5f5d8cfe8710c361f6c8b"
+
 [[package]]
 name = "untrusted"
 version = "0.7.1"
diff --git a/Cargo.toml b/Cargo.toml
index b0c1ce6..be804fd 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -35,3 +35,4 @@ serde = { version = "1.0.144", features = ["derive"] }
 url = { version = "2.3.1", features = ["serde"] }
 serde_json = "1.0.85"
 typetag = "0.2.3"
+serde_with = "2.0.1"
diff --git a/src/cli/arg/mod.rs b/src/cli/arg/mod.rs
index 5e74712..4827e09 100644
--- a/src/cli/arg/mod.rs
+++ b/src/cli/arg/mod.rs
@@ -1,4 +1,6 @@
 mod instrumentation;
-pub use instrumentation::Instrumentation;
+pub(crate) use instrumentation::Instrumentation;
 mod channel_value;
-pub use channel_value::ChannelValue;
+pub(crate) use channel_value::ChannelValue;
+mod plan_options;
+pub(crate) use plan_options::PlanOptions;
diff --git a/src/cli/arg/plan_options.rs b/src/cli/arg/plan_options.rs
new file mode 100644
index 0000000..e96f214
--- /dev/null
+++ b/src/cli/arg/plan_options.rs
@@ -0,0 +1,41 @@
+use clap::{ArgAction, Parser};
+
+/// Plan an install that can be repeated on an identical host later
+#[derive(Debug, Parser)]
+pub(crate) struct PlanOptions {
+    /// 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",
+        group = "plan_options"
+    )]
+    pub(crate) channel: Vec<crate::cli::arg::ChannelValue>,
+    /// Don't modify the user profile to automatically load nix
+    #[clap(
+        long,
+        action(ArgAction::SetTrue),
+        default_value = "false",
+        global = true,
+        group = "plan_options"
+    )]
+    pub(crate) no_modify_profile: bool,
+    /// Number of build users to create
+    #[clap(
+        long,
+        default_value = "32",
+        env = "HARMONIC_NIX_DAEMON_USER_COUNT",
+        group = "plan_options"
+    )]
+    pub(crate) daemon_user_count: usize,
+    #[clap(
+        long,
+        action(ArgAction::SetTrue),
+        default_value = "false",
+        global = true,
+        group = "plan_options"
+    )]
+    pub(crate) force: bool,
+}
diff --git a/src/cli/subcommand/install.rs b/src/cli/subcommand/install.rs
index b23ec42..6180ff1 100644
--- a/src/cli/subcommand/install.rs
+++ b/src/cli/subcommand/install.rs
@@ -5,7 +5,10 @@ use eyre::{eyre, WrapErr};
 use harmonic::{InstallPlan, InstallSettings};
 
 use crate::{
-    cli::{arg::ChannelValue, CommandExecute},
+    cli::{
+        arg::{ChannelValue, PlanOptions},
+        CommandExecute,
+    },
     interaction,
 };
 
@@ -19,26 +22,8 @@ pub(crate) struct Install {
         global = true
     )]
     no_confirm: bool,
-    /// 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) channel: Vec<ChannelValue>,
-    /// Don't modify the user profile to automatically load nix
-    #[clap(
-        long,
-        action(ArgAction::SetTrue),
-        default_value = "false",
-        global = true
-    )]
-    pub(crate) no_modify_profile: bool,
-    /// Number of build users to create
-    #[clap(long, default_value = "32", env = "HARMONIC_NIX_DAEMON_USER_COUNT")]
-    pub(crate) daemon_user_count: usize,
+    #[clap(flatten)]
+    plan_options: PlanOptions,
     #[clap(
         long,
         action(ArgAction::SetTrue),
@@ -47,14 +32,7 @@ pub(crate) struct Install {
     )]
     pub(crate) explain: bool,
     #[clap(
-        long,
-        action(ArgAction::SetTrue),
-        default_value = "false",
-        global = true
-    )]
-    pub(crate) force: bool,
-    #[clap(
-        conflicts_with_all = [ "no_modify_profile", "daemon_user_count", "channel" ],
+        conflicts_with_all = [ "plan_options" ],
         env = "HARMONIC_PLAN",
     )]
     plan: Option<PathBuf>,
@@ -67,11 +45,8 @@ impl CommandExecute for Install {
         let Self {
             no_confirm,
             plan,
+            plan_options,
             explain,
-            channel,
-            no_modify_profile,
-            daemon_user_count,
-            force,
         } = self;
 
         let mut plan = match &plan {
@@ -84,14 +59,15 @@ impl CommandExecute for Install {
             None => {
                 let mut settings = InstallSettings::default()?;
 
-                settings.force(force);
-                settings.daemon_user_count(daemon_user_count);
+                settings.force(plan_options.force);
+                settings.daemon_user_count(plan_options.daemon_user_count);
                 settings.channels(
-                    channel
+                    plan_options
+                        .channel
                         .into_iter()
                         .map(|ChannelValue(name, url)| (name, url)),
                 );
-                settings.modify_profile(!no_modify_profile);
+                settings.modify_profile(!plan_options.no_modify_profile);
 
                 InstallPlan::new(settings).await?
             },
diff --git a/src/cli/subcommand/plan.rs b/src/cli/subcommand/plan.rs
index 9ab035f..5a4ef21 100644
--- a/src/cli/subcommand/plan.rs
+++ b/src/cli/subcommand/plan.rs
@@ -1,59 +1,40 @@
 use std::{path::PathBuf, process::ExitCode};
 
-use clap::{ArgAction, Parser};
+use clap::Parser;
 use harmonic::{InstallPlan, InstallSettings};
 
 use eyre::WrapErr;
 
-use crate::cli::{arg::ChannelValue, CommandExecute};
+use crate::cli::{
+    arg::{ChannelValue, PlanOptions},
+    CommandExecute,
+};
 
 /// Plan an install that can be repeated on an identical host later
 #[derive(Debug, Parser)]
 pub(crate) struct Plan {
-    /// 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"
-    )]
-    channel: Vec<crate::cli::arg::ChannelValue>,
-    /// Don't modify the user profile to automatically load nix
-    #[clap(
-        long,
-        action(ArgAction::SetTrue),
-        default_value = "false",
-        global = true
-    )]
-    no_modify_profile: bool,
-    /// Number of build users to create
-    #[clap(long, default_value = "32", env = "HARMONIC_NIX_DAEMON_USER_COUNT")]
-    daemon_user_count: usize,
-    #[clap(
-        long,
-        action(ArgAction::SetTrue),
-        default_value = "false",
-        global = true
-    )]
-    force: bool,
+    #[clap(flatten)]
+    plan_options: PlanOptions,
     #[clap(default_value = "/dev/stdout")]
-    plan: PathBuf,
+    pub(crate) plan: PathBuf,
 }
 
 #[async_trait::async_trait]
 impl CommandExecute for Plan {
     #[tracing::instrument(skip_all, fields(
-        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,
+        channels = %self.plan_options.channel.iter().map(|ChannelValue(name, url)| format!("{name} {url}")).collect::<Vec<_>>().join(", "),
+        daemon_user_count = %self.plan_options.daemon_user_count,
+        no_modify_profile = %self.plan_options.no_modify_profile,
     ))]
     async fn execute(self) -> eyre::Result<ExitCode> {
         let Self {
-            channel,
-            no_modify_profile,
-            daemon_user_count,
-            force,
+            plan_options:
+                PlanOptions {
+                    channel,
+                    no_modify_profile,
+                    daemon_user_count,
+                    force,
+                },
             plan,
         } = self;
 
diff --git a/src/settings.rs b/src/settings.rs
index a601ead..f532f17 100644
--- a/src/settings.rs
+++ b/src/settings.rs
@@ -1,5 +1,7 @@
+use target_lexicon::Triple;
 use url::Url;
 
+#[serde_with::serde_as]
 #[derive(Debug, serde::Deserialize, serde::Serialize, Clone)]
 pub struct InstallSettings {
     pub(crate) daemon_user_count: usize,
@@ -12,6 +14,8 @@ pub struct InstallSettings {
     pub(crate) nix_package_url: Url,
     pub(crate) extra_conf: Option<String>,
     pub(crate) force: bool,
+    #[serde_as(as = "serde_with::DisplayFromStr")]
+    pub(crate) triple: Triple,
 }
 
 impl InstallSettings {
@@ -40,6 +44,7 @@ impl InstallSettings {
         };
 
         Ok(Self {
+            triple: target_lexicon::HOST,
             daemon_user_count: Default::default(),
             channels: Default::default(),
             modify_profile: Default::default(),