diff --git a/.gitignore b/.gitignore
index 901b6e6..7493ea1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,6 @@
 */target/
+
+
+# Added by cargo
+
+/target
diff --git a/large_sum/Cargo.lock b/Cargo.lock
similarity index 97%
rename from large_sum/Cargo.lock
rename to Cargo.lock
index 036bdfe..3467073 100644
--- a/large_sum/Cargo.lock
+++ b/Cargo.lock
@@ -8,13 +8,6 @@ version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ace50bade8e6234aa140d9a2f552bbee1db4d353f69b8217bc503490fc1a9f26"
 
-[[package]]
-name = "large_sum"
-version = "0.1.0"
-dependencies = [
- "num-bigint",
-]
-
 [[package]]
 name = "num-bigint"
 version = "0.4.6"
@@ -42,3 +35,10 @@ checksum = "071dfc062690e90b734c0b2273ce72ad0ffa95f0c74596bc250dcfd960262841"
 dependencies = [
  "autocfg",
 ]
+
+[[package]]
+name = "oily-solutions"
+version = "0.1.0"
+dependencies = [
+ "num-bigint",
+]
diff --git a/self_powers/Cargo.toml b/Cargo.toml
similarity index 77%
rename from self_powers/Cargo.toml
rename to Cargo.toml
index c9ae7bb..a609e33 100644
--- a/self_powers/Cargo.toml
+++ b/Cargo.toml
@@ -1,5 +1,5 @@
 [package]
-name = "self_powers"
+name = "oily-solutions"
 version = "0.1.0"
 edition = "2021"
 
diff --git a/large_sum/Cargo.toml b/large_sum/Cargo.toml
deleted file mode 100644
index 30e3900..0000000
--- a/large_sum/Cargo.toml
+++ /dev/null
@@ -1,7 +0,0 @@
-[package]
-name = "large_sum"
-version = "0.1.0"
-edition = "2021"
-
-[dependencies]
-num-bigint = "0.4.6"
diff --git a/power_digit_sum/Cargo.lock b/power_digit_sum/Cargo.lock
deleted file mode 100644
index e8f9f19..0000000
--- a/power_digit_sum/Cargo.lock
+++ /dev/null
@@ -1,44 +0,0 @@
-# This file is automatically @generated by Cargo.
-# It is not intended for manual editing.
-version = 4
-
-[[package]]
-name = "autocfg"
-version = "1.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ace50bade8e6234aa140d9a2f552bbee1db4d353f69b8217bc503490fc1a9f26"
-
-[[package]]
-name = "num-bigint"
-version = "0.4.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a5e44f723f1133c9deac646763579fdb3ac745e418f2a7af9cd0c431da1f20b9"
-dependencies = [
- "num-integer",
- "num-traits",
-]
-
-[[package]]
-name = "num-integer"
-version = "0.1.46"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7969661fd2958a5cb096e56c8e1ad0444ac2bbcd0061bd28660485a44879858f"
-dependencies = [
- "num-traits",
-]
-
-[[package]]
-name = "num-traits"
-version = "0.2.19"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "071dfc062690e90b734c0b2273ce72ad0ffa95f0c74596bc250dcfd960262841"
-dependencies = [
- "autocfg",
-]
-
-[[package]]
-name = "power_digit_sum"
-version = "0.1.0"
-dependencies = [
- "num-bigint",
-]
diff --git a/power_digit_sum/Cargo.toml b/power_digit_sum/Cargo.toml
deleted file mode 100644
index 86880a2..0000000
--- a/power_digit_sum/Cargo.toml
+++ /dev/null
@@ -1,7 +0,0 @@
-[package]
-name = "power_digit_sum"
-version = "0.1.0"
-edition = "2021"
-
-[dependencies]
-num-bigint = "0.4.6"
diff --git a/self_powers/Cargo.lock b/self_powers/Cargo.lock
deleted file mode 100644
index cc79b85..0000000
--- a/self_powers/Cargo.lock
+++ /dev/null
@@ -1,44 +0,0 @@
-# This file is automatically @generated by Cargo.
-# It is not intended for manual editing.
-version = 4
-
-[[package]]
-name = "autocfg"
-version = "1.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ace50bade8e6234aa140d9a2f552bbee1db4d353f69b8217bc503490fc1a9f26"
-
-[[package]]
-name = "num-bigint"
-version = "0.4.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a5e44f723f1133c9deac646763579fdb3ac745e418f2a7af9cd0c431da1f20b9"
-dependencies = [
- "num-integer",
- "num-traits",
-]
-
-[[package]]
-name = "num-integer"
-version = "0.1.46"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7969661fd2958a5cb096e56c8e1ad0444ac2bbcd0061bd28660485a44879858f"
-dependencies = [
- "num-traits",
-]
-
-[[package]]
-name = "num-traits"
-version = "0.2.19"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "071dfc062690e90b734c0b2273ce72ad0ffa95f0c74596bc250dcfd960262841"
-dependencies = [
- "autocfg",
-]
-
-[[package]]
-name = "self_powers"
-version = "0.1.0"
-dependencies = [
- "num-bigint",
-]
diff --git a/10001st_prime.rs b/src/bin/10001st_prime.rs
similarity index 100%
rename from 10001st_prime.rs
rename to src/bin/10001st_prime.rs
diff --git a/even_fibonacci_numbers.rs b/src/bin/even_fibonacci_numbers.rs
similarity index 100%
rename from even_fibonacci_numbers.rs
rename to src/bin/even_fibonacci_numbers.rs
diff --git a/highly_divisible_triangular_number.rs b/src/bin/highly_divisible_triangular_number.rs
similarity index 100%
rename from highly_divisible_triangular_number.rs
rename to src/bin/highly_divisible_triangular_number.rs
diff --git a/large_sum/src/main.rs b/src/bin/large_sum.rs
similarity index 100%
rename from large_sum/src/main.rs
rename to src/bin/large_sum.rs
diff --git a/largest_palindrome_product.rs b/src/bin/largest_palindrome_product.rs
similarity index 100%
rename from largest_palindrome_product.rs
rename to src/bin/largest_palindrome_product.rs
diff --git a/largest_prime_factor.rs b/src/bin/largest_prime_factor.rs
similarity index 100%
rename from largest_prime_factor.rs
rename to src/bin/largest_prime_factor.rs
diff --git a/largest_product_in_a_series.rs b/src/bin/largest_product_in_a_series.rs
similarity index 100%
rename from largest_product_in_a_series.rs
rename to src/bin/largest_product_in_a_series.rs
diff --git a/longest_collatz_sequence.rs b/src/bin/longest_collatz_sequence.rs
similarity index 100%
rename from longest_collatz_sequence.rs
rename to src/bin/longest_collatz_sequence.rs
diff --git a/multiples_of_3_or_5.rs b/src/bin/multiples_of_3_or_5.rs
similarity index 100%
rename from multiples_of_3_or_5.rs
rename to src/bin/multiples_of_3_or_5.rs
diff --git a/number_letter_counts.rs b/src/bin/number_letter_counts.rs
similarity index 100%
rename from number_letter_counts.rs
rename to src/bin/number_letter_counts.rs
diff --git a/power_digit_sum/src/main.rs b/src/bin/power_digit_sum.rs
similarity index 100%
rename from power_digit_sum/src/main.rs
rename to src/bin/power_digit_sum.rs
diff --git a/self_powers/src/main.rs b/src/bin/self_powers.rs
similarity index 100%
rename from self_powers/src/main.rs
rename to src/bin/self_powers.rs
diff --git a/smallest_multiple.rs b/src/bin/smallest_multiple.rs
similarity index 100%
rename from smallest_multiple.rs
rename to src/bin/smallest_multiple.rs
diff --git a/special_pythagorean_triplet.rs b/src/bin/special_pythagorean_triplet.rs
similarity index 100%
rename from special_pythagorean_triplet.rs
rename to src/bin/special_pythagorean_triplet.rs
diff --git a/sum_square_difference.rs b/src/bin/sum_square_difference.rs
similarity index 100%
rename from sum_square_difference.rs
rename to src/bin/sum_square_difference.rs
diff --git a/summation_of_primes.rs b/src/bin/summation_of_primes.rs
similarity index 100%
rename from summation_of_primes.rs
rename to src/bin/summation_of_primes.rs
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..e7a11a9
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,3 @@
+fn main() {
+    println!("Hello, world!");
+}