diff --git a/build.rs b/build.rs
index 9ce1b61..262b9b7 100644
--- a/build.rs
+++ b/build.rs
@@ -13,6 +13,8 @@ fn main()
 {
 	let name = env!("CARGO_PKG_NAME");
 	println!("{} build.rs started...", name);
+
+	
 	
 	println!("{} build.rs finished", name);
 }
\ No newline at end of file
diff --git a/crates/day_0/input/input b/crates/day_0/input/input
new file mode 100644
index 0000000..4701cc7
--- /dev/null
+++ b/crates/day_0/input/input
@@ -0,0 +1 @@
+150
\ No newline at end of file
diff --git a/crates/day_0/input/input_test b/crates/day_0/input/input_test
new file mode 100644
index 0000000..c5b431b
--- /dev/null
+++ b/crates/day_0/input/input_test
@@ -0,0 +1 @@
+50
\ No newline at end of file
diff --git a/crates/day_0/src/day_0.rs b/crates/day_0/src/day_0.rs
index 1cf31ab..4dab139 100644
--- a/crates/day_0/src/day_0.rs
+++ b/crates/day_0/src/day_0.rs
@@ -7,22 +7,26 @@
 *	@brief		pre-advent testing
 ******************************************************************************/
 
-use solver::solver::Solver;
+use solver::solver::{Solver, SolverState};
 
-pub struct Day0;
+pub struct Day0
+{
+	solver_state: SolverState,
+	num_fib_values: i32,
+}
 
 impl Solver for Day0
 {
 	fn init(&mut self, _config: solver::solver::SolverState) -> Result<(), String> 
 	{
-
+		self.solver_state = _config.clone();
+		self.num_fib_values = self.solver_state.get_value("num_fib_values").parse().expect("Could not parse num_fib_values");
 		return Ok(())
-		// todo!("Day0::init()")
 	}
 
 	fn solve(&mut self, _input: String) -> Result<u64, String> 
 	{
-		let fibs = gen_fib_seq(50, std::i64::MAX / 2);
+		let fibs = gen_fib_seq(self.num_fib_values, std::i64::MAX);	// no max_val basically
 		println!("fib nums:");
 		print_fibs(fibs);
 		Ok(0)
@@ -38,7 +42,7 @@ impl Day0
 {
 	pub fn new() -> Day0
 	{
-		Day0 {}
+		Day0 { solver_state: SolverState::new(), num_fib_values: 5 }
 	}
 }
 
diff --git a/crates/solver/src/solver.rs b/crates/solver/src/solver.rs
index 1b88dbb..9039eef 100644
--- a/crates/solver/src/solver.rs
+++ b/crates/solver/src/solver.rs
@@ -58,13 +58,13 @@ impl SolverState
 		self.options & (opt as u64) != 0
 	}
 
-	pub fn set_value(self: &mut SolverState, val: String, key: String)
+	pub fn set_value(self: &mut SolverState, val: &str, key: &str)
 	{
-		self.values.insert(key, val);
+		self.values.insert(key.to_string(), val.to_string());
 	}
 
-	pub fn get_value(self: &SolverState, key: String) -> String
+	pub fn get_value(self: &SolverState, key: &str) -> String
 	{
-		self.values[&key].clone()
+		self.values[&key.to_string()].clone()
 	}
 }
\ No newline at end of file
diff --git a/src/main.rs b/src/main.rs
index d8635b5..64a20c8 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -10,7 +10,8 @@ fn main()
     // TODO: Grab command line args
 
     // TODO: Parse args into a SolverState
-    let state = SolverState::new();
+    let mut state = SolverState::new();
+    state.set_value("50", "num_fib_values");
     let _ = SolverOption::Debug;
 
     let mut test_day = Day0::new();