diff --git a/Cargo.lock b/Cargo.lock
index 6417785ca0..96fddbbcac 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -323,6 +323,7 @@ name = "conjure_core"
 version = "0.0.1"
 dependencies = [
  "anyhow",
+ "clap",
  "conjure_macros",
  "derivative",
  "derive_is_enum_variant",
diff --git a/conjure_oxide/src/main.rs b/conjure_oxide/src/main.rs
index d15f9f31ca..a74a25b95b 100644
--- a/conjure_oxide/src/main.rs
+++ b/conjure_oxide/src/main.rs
@@ -9,7 +9,6 @@ use std::process::exit;
 use anyhow::Result as AnyhowResult;
 use anyhow::{anyhow, bail};
 use clap::{arg, command, Parser};
-use conjure_oxide::utils::json::sort_json_object;
 use schemars::schema_for;
 use serde_json::json;
 use serde_json::to_string_pretty;
@@ -27,23 +26,46 @@ use conjure_oxide::SolverFamily;
 #[derive(Parser)]
 #[command(author, version, about, long_about = None)]
 struct Cli {
-    #[arg(long, value_name = "SOLVER")]
-    solver: Option<String>,
-
     #[arg(
         value_name = "INPUT_ESSENCE",
-        default_value = "./conjure_oxide/tests/integration/xyz/input.essence"
+        default_value = "./conjure_oxide/tests/integration/xyz/input.essence",
+        help = "The input Essence file"
     )]
     input_file: PathBuf,
 
+    #[arg(
+        long,
+        value_name = "EXTRA_RULE_SETS",
+        help = "Names of extra rule sets to enable"
+    )]
+    extra_rule_sets: Vec<String>,
+
+    #[arg(
+        long,
+        value_enum,
+        value_name = "SOLVER",
+        short = 's',
+        help = "Solver family use (Minion by default)"
+    )]
+    solver: Option<SolverFamily>, // ToDo this should probably set the solver adapter
+
     // TODO: subcommands instead of these being a flag.
-    #[arg(long, default_value_t = false)]
-    /// Prints the schema for the info JSON then exits.
+    #[arg(
+        long,
+        default_value_t = false,
+        help = "Print the schema for the info JSON and exit"
+    )]
     print_info_schema: bool,
 
-    #[arg(long)]
-    /// Saves execution info as JSON to the given file-path.
+    #[arg(long, help = "Save execution info as JSON to the given file-path.")]
     info_json_path: Option<PathBuf>,
+
+    #[arg(
+        long,
+        short = 'o',
+        help = "Save solutions to a JSON file (prints to stdin by default)"
+    )]
+    output: Option<PathBuf>,
 }
 
 #[allow(clippy::unwrap_used)]
@@ -57,21 +79,34 @@ pub fn main() -> AnyhowResult<()> {
         return Ok(());
     }
 
-    let target_family = SolverFamily::Minion; // ToDo get this from CLI input
-    let extra_rule_sets: Vec<&str> = vec!["Constant"]; // ToDo get this from CLI input
-
+    let target_family = cli.solver.unwrap_or(SolverFamily::Minion);
+    let extra_rule_sets: Vec<String> = cli.extra_rule_sets;
+    let out_file: Option<File> = match &cli.output {
+        None => None,
+        Some(pth) => Some(
+            File::options()
+                .create(true)
+                .truncate(true)
+                .write(true)
+                .open(pth)?,
+        ),
+    };
     #[allow(clippy::unwrap_used)]
     let log_file = File::options()
         .create(true)
         .append(true)
-        .open("conjure_oxide.log")
-        .unwrap();
+        .open("conjure_oxide.log")?;
 
     Builder::new()
         .with_target_writer("info", new_writer(stdout()))
         .with_target_writer("file", new_writer(log_file))
         .init();
 
+    if target_family != SolverFamily::Minion {
+        log::error!("Only the Minion solver is currently supported!");
+        exit(1);
+    }
+
     let rule_sets = match resolve_rule_sets(target_family, &extra_rule_sets) {
         Ok(rs) => rs,
         Err(e) => {
@@ -80,23 +115,30 @@ pub fn main() -> AnyhowResult<()> {
         }
     };
 
+    let pretty_rule_sets = rule_sets
+        .iter()
+        .map(|rule_set| rule_set.name)
+        .collect::<Vec<_>>()
+        .join(", ");
+
+    println!("Enabled rule sets: [{}]", pretty_rule_sets);
     log::info!(
-        target: "info",
+        target: "file",
         "Rule sets: {}",
-        rule_sets.iter().map(|rule_set| rule_set.name).collect::<Vec<_>>().join(", ")
+        pretty_rule_sets
     );
 
     let rule_priorities = get_rule_priorities(&rule_sets)?;
     let rules_vec = get_rules_vec(&rule_priorities);
 
-    log::info!(target: "info", 
+    log::info!(target: "file", 
          "Rules and priorities: {}", 
          rules_vec.iter()
             .map(|rule| format!("{}: {}", rule.name, rule_priorities.get(rule).unwrap_or(&0)))
             .collect::<Vec<_>>()
             .join(", "));
 
-    log::info!("Input file: {}", cli.input_file.display());
+    log::info!(target: "file", "Input file: {}", cli.input_file.display());
     let input_file: &str = cli.input_file.to_str().ok_or(anyhow!(
         "Given input_file could not be converted to a string"
     ))?;
@@ -133,15 +175,31 @@ pub fn main() -> AnyhowResult<()> {
 
     let mut model = model_from_json(&astjson, context.clone())?;
 
-    log::info!("Initial model: {}", to_string_pretty(&json!(model))?);
+    log::info!(target: "file", "Initial model: {}", json!(model));
 
-    log::info!("Rewriting model...");
+    log::info!(target: "file", "Rewriting model...");
     model = rewrite_model(&model, &rule_sets)?;
 
-    log::info!("Rewritten model: {}", to_string_pretty(&json!(model))?);
+    log::info!(target: "file", "Rewritten model: {}", json!(model));
+
+    let solutions = get_minion_solutions(model)?; // ToDo we need to properly set the solver adaptor here, not hard code minion
+    log::info!(target: "file", "Solutions: {}", minion_solutions_to_json(&solutions));
 
-    let solutions = get_minion_solutions(model)?;
-    log::info!("Solutions: {}", minion_solutions_to_json(&solutions));
+    let solutions_json = minion_solutions_to_json(&solutions);
+    let solutions_str = to_string_pretty(&solutions_json)?;
+    match out_file {
+        None => {
+            println!("Solutions:");
+            println!("{}", solutions_str);
+        }
+        Some(mut outf) => {
+            outf.write_all(solutions_str.as_bytes())?;
+            println!(
+                "Solutions saved to {:?}",
+                &cli.output.unwrap().canonicalize()?
+            )
+        }
+    }
 
     if let Some(path) = cli.info_json_path {
         #[allow(clippy::unwrap_used)]
diff --git a/conjure_oxide/tests/generated_tests.rs b/conjure_oxide/tests/generated_tests.rs
index 9d4361f08a..671c3a9120 100644
--- a/conjure_oxide/tests/generated_tests.rs
+++ b/conjure_oxide/tests/generated_tests.rs
@@ -54,7 +54,7 @@ fn integration_test(path: &str, essence_base: &str) -> Result<(), Box<dyn Error>
     assert_eq!(model, expected_model);
 
     // Stage 2: Rewrite the model using the rule engine and check that the result is as expected
-    let rule_sets = resolve_rule_sets(SolverFamily::Minion, &vec!["Constant"])?;
+    let rule_sets = resolve_rule_sets(SolverFamily::Minion, &vec!["Constant".to_string()])?;
     let model = rewrite_model(&model, &rule_sets)?;
     if verbose {
         println!("Rewritten model: {:#?}", model)
diff --git a/conjure_oxide/tests/rewrite_tests.rs b/conjure_oxide/tests/rewrite_tests.rs
index 7f4a8d04b7..7e6206e27a 100644
--- a/conjure_oxide/tests/rewrite_tests.rs
+++ b/conjure_oxide/tests/rewrite_tests.rs
@@ -3,7 +3,6 @@ use std::collections::HashMap;
 use std::env;
 use std::process::exit;
 
-use conjure_core::context::Context;
 use conjure_core::rules::eval_constant;
 use conjure_core::solver::SolverFamily;
 use conjure_oxide::{
@@ -829,7 +828,7 @@ fn rule_distribute_or_over_and() {
 fn rewrite_solve_xyz() {
     println!("Rules: {:?}", get_rules());
 
-    let rule_sets = match resolve_rule_sets(SolverFamily::Minion, &vec!["Constant"]) {
+    let rule_sets = match resolve_rule_sets(SolverFamily::Minion, &vec!["Constant".to_string()]) {
         Ok(rs) => rs,
         Err(e) => {
             eprintln!("Error resolving rule sets: {}", e);
@@ -868,7 +867,7 @@ fn rewrite_solve_xyz() {
         ],
     );
 
-    let rule_sets = match resolve_rule_sets(SolverFamily::Minion, &vec!["Constant"]) {
+    let rule_sets = match resolve_rule_sets(SolverFamily::Minion, &vec!["Constant".to_string()]) {
         Ok(rs) => rs,
         Err(e) => {
             eprintln!("Error resolving rule sets: {}", e);
diff --git a/crates/conjure_core/Cargo.toml b/crates/conjure_core/Cargo.toml
index 67697bdaef..9b8086e8ba 100644
--- a/crates/conjure_core/Cargo.toml
+++ b/crates/conjure_core/Cargo.toml
@@ -24,6 +24,7 @@ regex = "1.10.4"
 walkdir = "2.5.0"
 derivative = "2.2.0"
 schemars = "0.8.16"
+clap = { version = "4.5.4", features = ["derive"] }
 
 [lints]
 workspace = true
diff --git a/crates/conjure_core/src/context.rs b/crates/conjure_core/src/context.rs
index d3716eb919..44cd76280c 100644
--- a/crates/conjure_core/src/context.rs
+++ b/crates/conjure_core/src/context.rs
@@ -2,7 +2,7 @@ use std::fmt::{Debug, Formatter};
 use std::sync::{Arc, RwLock};
 
 use derivative::Derivative;
-use schemars::{schema_for, JsonSchema};
+use schemars::JsonSchema;
 use serde::Serialize;
 use serde_with::skip_serializing_none;
 
@@ -20,7 +20,7 @@ pub struct Context<'a> {
 
     pub file_name: Option<String>,
 
-    pub extra_rule_set_names: Vec<&'a str>,
+    pub extra_rule_set_names: Vec<String>,
 
     #[serde(skip)]
     pub rules: Vec<&'a Rule<'a>>,
@@ -35,7 +35,7 @@ pub struct Context<'a> {
 impl<'a> Context<'a> {
     pub fn new(
         target_solver_family: SolverFamily,
-        extra_rule_set_names: Vec<&'a str>,
+        extra_rule_set_names: Vec<String>,
         rules: Vec<&'a Rule<'a>>,
         rule_sets: Vec<&'a RuleSet<'a>>,
     ) -> Self {
@@ -53,7 +53,7 @@ impl<'a> Context<'a> {
 impl Context<'static> {
     pub fn new_ptr(
         target_solver_family: SolverFamily,
-        extra_rule_set_names: Vec<&'static str>,
+        extra_rule_set_names: Vec<String>,
         rules: Vec<&'static Rule<'static>>,
         rule_sets: Vec<&'static RuleSet<'static>>,
     ) -> Arc<RwLock<Context<'static>>> {
@@ -69,7 +69,7 @@ impl Context<'static> {
 impl<'a> Debug for Context<'a> {
     fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
         let target_solver_family: Option<SolverFamily> = self.target_solver_family;
-        let extra_rule_set_names: Vec<&str> = self.extra_rule_set_names.clone();
+        let extra_rule_set_names: Vec<String> = self.extra_rule_set_names.clone();
         let rules: Vec<&str> = self.rules.iter().map(|r| r.name).collect();
         let rule_sets: Vec<&str> = self.rule_sets.iter().map(|r| r.name).collect();
 
diff --git a/crates/conjure_core/src/parse/example_models.rs b/crates/conjure_core/src/parse/example_models.rs
index 6d8eacd71e..439213badc 100644
--- a/crates/conjure_core/src/parse/example_models.rs
+++ b/crates/conjure_core/src/parse/example_models.rs
@@ -1,6 +1,5 @@
 // example_models with get_example_model function
 
-use std::default;
 use std::path::PathBuf;
 
 use project_root::get_project_root;
diff --git a/crates/conjure_core/src/rule_engine/resolve_rules.rs b/crates/conjure_core/src/rule_engine/resolve_rules.rs
index 91e2c2e62d..deb4d55a37 100644
--- a/crates/conjure_core/src/rule_engine/resolve_rules.rs
+++ b/crates/conjure_core/src/rule_engine/resolve_rules.rs
@@ -43,7 +43,7 @@ fn get_rule_set(rule_set_name: &str) -> Result<&'static RuleSet<'static>, Resolv
 ///
 #[allow(clippy::mutable_key_type)] // RuleSet is 'static so it's fine
 pub fn rule_sets_by_names<'a>(
-    rule_set_names: &Vec<&str>,
+    rule_set_names: &Vec<String>,
 ) -> Result<HashSet<&'a RuleSet<'static>>, ResolveRulesError> {
     let mut rs_set: HashSet<&'static RuleSet<'static>> = HashSet::new();
 
@@ -69,7 +69,7 @@ pub fn rule_sets_by_names<'a>(
 #[allow(clippy::mutable_key_type)] // RuleSet is 'static so it's fine
 pub fn resolve_rule_sets<'a>(
     target_solver: SolverFamily,
-    extra_rs_names: &Vec<&str>,
+    extra_rs_names: &Vec<String>,
 ) -> Result<Vec<&'a RuleSet<'static>>, ResolveRulesError> {
     let mut ans = HashSet::new();
 
diff --git a/crates/conjure_core/src/solver/mod.rs b/crates/conjure_core/src/solver/mod.rs
index c097336ab8..199c6b1fbd 100644
--- a/crates/conjure_core/src/solver/mod.rs
+++ b/crates/conjure_core/src/solver/mod.rs
@@ -32,7 +32,7 @@
 //!
 //! // Define and rewrite a model for minion.
 //! let model = get_example_model("bool-03").unwrap();
-//! let rule_sets = resolve_rule_sets(SolverFamily::Minion, &vec!["Constant"]).unwrap();
+//! let rule_sets = resolve_rule_sets(SolverFamily::Minion, &vec!["Constant".to_string()]).unwrap();
 //! let model = rewrite_model(&model,&rule_sets).unwrap();
 //!
 //!
@@ -128,7 +128,6 @@ pub mod states;
     Deserialize,
     JsonSchema,
 )]
-
 pub enum SolverFamily {
     SAT,
     Minion,