diff --git a/.gitignore b/.gitignore
index a967731..e6b40cd 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,6 +7,7 @@
 *.dll
 *.so
 *.dylib
+bin/
 
 # Test binary, built with `go test -c`
 *.test
diff --git a/day-01/internal/one/benchmark b/day-01/internal/one/benchmark
new file mode 100644
index 0000000..8c90b82
--- /dev/null
+++ b/day-01/internal/one/benchmark
@@ -0,0 +1,6 @@
+goos: linux
+goarch: amd64
+pkg: github.com/onyx-and-iris/aoc2024/day-01/internal/one
+cpu: Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz
+BenchmarkMain-12    	1000000000	         0.0006628 ns/op
+ok  	github.com/onyx-and-iris/aoc2024/day-01/internal/one	0.009s
diff --git a/day-01/main_internal_test.go b/day-01/internal/one/solve_internal_test.go
similarity index 55%
rename from day-01/main_internal_test.go
rename to day-01/internal/one/solve_internal_test.go
index ae4aa6b..f9cc9af 100644
--- a/day-01/main_internal_test.go
+++ b/day-01/internal/one/solve_internal_test.go
@@ -1,11 +1,15 @@
-package main
+package one
 
 import (
+	_ "embed"
 	"os"
 	"testing"
 )
 
+//go:embed testdata/input.txt
+var data []byte
+
 func BenchmarkMain(b *testing.B) {
 	os.Stdout, _ = os.Open(os.DevNull)
-	main()
+	Solve(data)
 }
diff --git a/day-01/internal/two/benchmark b/day-01/internal/two/benchmark
new file mode 100644
index 0000000..0eb0983
--- /dev/null
+++ b/day-01/internal/two/benchmark
@@ -0,0 +1,6 @@
+goos: linux
+goarch: amd64
+pkg: github.com/onyx-and-iris/aoc2024/day-01/internal/two
+cpu: Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz
+BenchmarkMain-12    	1000000000	         0.001179 ns/op
+ok  	github.com/onyx-and-iris/aoc2024/day-01/internal/two	0.011s
diff --git a/day-01/internal/two/solve_internal_test.go b/day-01/internal/two/solve_internal_test.go
new file mode 100644
index 0000000..e3efa34
--- /dev/null
+++ b/day-01/internal/two/solve_internal_test.go
@@ -0,0 +1,15 @@
+package two
+
+import (
+	_ "embed"
+	"os"
+	"testing"
+)
+
+//go:embed testdata/input.txt
+var data []byte
+
+func BenchmarkMain(b *testing.B) {
+	os.Stdout, _ = os.Open(os.DevNull)
+	Solve(data)
+}
diff --git a/day-01/main.go b/day-01/main.go
deleted file mode 100644
index 3b5ba78..0000000
--- a/day-01/main.go
+++ /dev/null
@@ -1,40 +0,0 @@
-/********************************************************************************
-    Advent of Code 2024 - day-01
-********************************************************************************/
-
-package main
-
-import (
-	"embed"
-	"flag"
-	"fmt"
-	"log"
-
-	"github.com/onyx-and-iris/aoc2024/day-01/internal/one"
-	"github.com/onyx-and-iris/aoc2024/day-01/internal/two"
-)
-
-//go:embed testdata
-var files embed.FS
-
-func main() {
-	filename := flag.String("f", "input.txt", "input file")
-	flag.Parse()
-
-	data, err := files.ReadFile(fmt.Sprintf("testdata/%s", *filename))
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	val, err := one.Solve(data)
-	if err != nil {
-		log.Fatal(err)
-	}
-	fmt.Printf("solution one: %d\n", val)
-
-	val, err = two.Solve(data)
-	if err != nil {
-		log.Fatal(err)
-	}
-	fmt.Printf("solution two: %d\n", val)
-}
diff --git a/day-01/solve.go b/day-01/solve.go
new file mode 100644
index 0000000..39d0613
--- /dev/null
+++ b/day-01/solve.go
@@ -0,0 +1,23 @@
+package day01
+
+import (
+	"fmt"
+	"log"
+
+	"github.com/onyx-and-iris/aoc2024/day-01/internal/one"
+	"github.com/onyx-and-iris/aoc2024/day-01/internal/two"
+)
+
+func Solve(data []byte) {
+	val, err := one.Solve(data)
+	if err != nil {
+		log.Fatal(err)
+	}
+	fmt.Printf("solution one: %d\n", val)
+
+	val, err = two.Solve(data)
+	if err != nil {
+		log.Fatal(err)
+	}
+	fmt.Printf("solution two: %d\n", val)
+}
diff --git a/day-01/solve_internal_test.go b/day-01/solve_internal_test.go
new file mode 100644
index 0000000..151cb6f
--- /dev/null
+++ b/day-01/solve_internal_test.go
@@ -0,0 +1,15 @@
+package day01
+
+import (
+	_ "embed"
+	"os"
+	"testing"
+)
+
+//go:embed testdata/input.txt
+var data []byte
+
+func BenchmarkMain(b *testing.B) {
+	os.Stdout, _ = os.Open(os.DevNull)
+	Solve(data)
+}