diff --git a/2022/day10_cathode.py b/2022/day10_cathode.py
new file mode 100644
index 0000000..592e2ae
--- /dev/null
+++ b/2022/day10_cathode.py
@@ -0,0 +1,57 @@
+def main(filename: str, expected_part_1: int = None, expected_part_2: int = None):
+    print(f"\n+ Running on {filename}")
+    with open(filename) as f:
+        data = f.read().strip().split("\n")
+
+    data = parse_data(data)
+    solution_part_1 = solve_part_1(data)
+
+    print(f"1. Found {solution_part_1}")
+    if expected_part_1:
+        assert expected_part_1 == solution_part_1
+
+    solution_part_2 = solve_part_2(data)
+    print(f"2. Found {solution_part_2}")
+    if expected_part_2:
+        assert expected_part_2 == solution_part_2
+
+
+DataType = list[str]
+
+
+def parse_data(data: list[str]) -> DataType:
+    return data
+
+
+def solve_part_1(data: DataType) -> int:
+    total = 0
+    register = 1
+    clock = 0
+    expected_cycles = [20, 60, 100, 140, 180, 220]
+    for instruction in data:
+        match instruction.split():
+            case ["noop"]:
+                clock += 1
+                if clock in expected_cycles:
+                    print(f"{clock=}, {register=}")
+                    total += register * clock
+            case ["addx", value]:
+                clock += 1
+                if clock in expected_cycles:
+                    print(f"{clock=}, {register=}")
+                    total += register * clock
+                clock += 1
+                if clock in expected_cycles:
+                    print(f"{clock=}, {register=}")
+                    total += register * clock
+                register += int(value)
+    return total
+
+
+def solve_part_2(data: DataType) -> int:
+    return 0
+
+
+if __name__ == "__main__":
+    main("inputs/day10-test1", expected_part_1=13140)
+    main("inputs/day10")
diff --git a/2022/inputs/day10 b/2022/inputs/day10
new file mode 100644
index 0000000..6402c1a
--- /dev/null
+++ b/2022/inputs/day10
@@ -0,0 +1,145 @@
+noop
+noop
+noop
+addx 3
+addx 7
+noop
+noop
+noop
+noop
+addx 6
+noop
+addx -1
+noop
+addx 5
+addx 1
+noop
+addx 4
+noop
+noop
+noop
+noop
+addx 6
+addx -1
+noop
+addx 3
+addx -13
+addx -22
+noop
+noop
+addx 3
+addx 2
+addx 11
+addx -4
+addx 11
+addx -10
+addx 2
+addx 5
+addx 2
+addx -2
+noop
+addx 7
+addx 3
+addx -2
+addx 2
+addx 5
+addx 2
+addx -2
+addx -8
+addx -27
+addx 5
+addx 2
+addx 21
+addx -21
+addx 3
+addx 5
+addx 2
+addx -3
+addx 4
+addx 3
+addx 1
+addx 5
+noop
+noop
+noop
+noop
+addx 3
+addx 1
+addx 6
+addx -31
+noop
+addx -4
+noop
+noop
+noop
+noop
+addx 3
+addx 7
+noop
+addx -1
+addx 1
+addx 5
+noop
+addx 1
+noop
+addx 2
+addx -8
+addx 15
+addx 3
+noop
+addx 2
+addx 5
+noop
+noop
+noop
+addx -28
+addx 11
+addx -20
+noop
+addx 7
+addx -2
+addx 7
+noop
+addx -2
+noop
+addx -6
+addx 11
+noop
+addx 3
+addx 2
+noop
+noop
+addx 7
+addx 3
+addx -2
+addx 2
+addx 5
+addx 2
+addx -16
+addx -10
+addx -11
+addx 27
+addx -20
+noop
+addx 2
+addx 3
+addx 5
+noop
+noop
+noop
+addx 3
+addx -2
+addx 2
+noop
+addx -14
+addx 21
+noop
+addx -6
+addx 12
+noop
+addx -21
+addx 24
+addx 2
+noop
+noop
+noop
diff --git a/2022/inputs/day10-test1 b/2022/inputs/day10-test1
new file mode 100644
index 0000000..37ee8ee
--- /dev/null
+++ b/2022/inputs/day10-test1
@@ -0,0 +1,146 @@
+addx 15
+addx -11
+addx 6
+addx -3
+addx 5
+addx -1
+addx -8
+addx 13
+addx 4
+noop
+addx -1
+addx 5
+addx -1
+addx 5
+addx -1
+addx 5
+addx -1
+addx 5
+addx -1
+addx -35
+addx 1
+addx 24
+addx -19
+addx 1
+addx 16
+addx -11
+noop
+noop
+addx 21
+addx -15
+noop
+noop
+addx -3
+addx 9
+addx 1
+addx -3
+addx 8
+addx 1
+addx 5
+noop
+noop
+noop
+noop
+noop
+addx -36
+noop
+addx 1
+addx 7
+noop
+noop
+noop
+addx 2
+addx 6
+noop
+noop
+noop
+noop
+noop
+addx 1
+noop
+noop
+addx 7
+addx 1
+noop
+addx -13
+addx 13
+addx 7
+noop
+addx 1
+addx -33
+noop
+noop
+noop
+addx 2
+noop
+noop
+noop
+addx 8
+noop
+addx -1
+addx 2
+addx 1
+noop
+addx 17
+addx -9
+addx 1
+addx 1
+addx -3
+addx 11
+noop
+noop
+addx 1
+noop
+addx 1
+noop
+noop
+addx -13
+addx -19
+addx 1
+addx 3
+addx 26
+addx -30
+addx 12
+addx -1
+addx 3
+addx 1
+noop
+noop
+noop
+addx -9
+addx 18
+addx 1
+addx 2
+noop
+noop
+addx 9
+noop
+noop
+noop
+addx -1
+addx 2
+addx -37
+addx 1
+addx 3
+noop
+addx 15
+addx -21
+addx 22
+addx -6
+addx 1
+noop
+addx 2
+addx 1
+noop
+addx -10
+noop
+noop
+addx 20
+addx 1
+addx 2
+addx 2
+addx -6
+addx -11
+noop
+noop
+noop
diff --git a/pyproject.toml b/pyproject.toml
index f6a6d0d..28b4479 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,24 +1,3 @@
-[tool.poetry]
-name = "advent-of-code"
-version = "0.1.0"
-description = ""
-authors = ["Gabriel Augendre <gabriel@augendre.info>"]
-license = "Unlicense"
-
-[tool.poetry.dependencies]
-python = "^3.10"
-networkx = ">=2.5"
-pdbpp = ">=0.10.2"
-
-[tool.poetry.dev-dependencies]
-pre-commit = ">=2.9.2"
-pytest = ">=6.1.2"
-
-[build-system]
-requires = ["poetry-core>=1.0.0"]
-build-backend = "poetry.core.masonry.api"
-
-
 ###############################################################################
 # flake8 / flakeheaven
 ###############################################################################
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..f1da2b7
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,4 @@
+networkx>=2.5
+
+pre-commit
+pytest