diff --git a/.vscode/settings.json b/.vscode/settings.json
index 752f527..6c48529 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -1,11 +1,5 @@
 {
     "python.analysis.typeCheckingMode": "basic",
-    "python.formatting.blackArgs": [
-        "--line-length",
-        "120"
-    ],
-    "isort.args": [
-        "--profile",
-        "black"
-    ]
-}
\ No newline at end of file
+    "python.formatting.blackArgs": ["--line-length", "120"],
+    "isort.args": ["--profile", "black"]
+}
diff --git a/xmetrics/Dockerfile b/xmetrics/Dockerfile
new file mode 100644
index 0000000..f1cf677
--- /dev/null
+++ b/xmetrics/Dockerfile
@@ -0,0 +1,35 @@
+FROM python:3.11 as metrics-base
+WORKDIR /code/
+
+FROM metrics-base as metrics-tmg
+RUN git clone https://github.com/OnGoTeam/TMGmod.git
+WORKDIR /code/TMGmod/
+RUN git fetch && git checkout 82db35f2db92572c98d84ef781f64f8d65d2f023
+ENV SRCDIR="build/src"
+ENV SRCPATTERN="*.cs"
+
+FROM metrics-base as metrics-radn
+RUN git clone https://gitea.parrrate.ru/PTV/radn-rs.git
+WORKDIR /code/radn-rs/
+RUN git fetch && git checkout a60e4f09e0463b3b2fc0f91b21c9928d98d03213
+
+FROM metrics-base as metrics-mdbook
+RUN git clone https://github.com/rust-lang/mdBook.git
+WORKDIR /code/mdBook/
+RUN git fetch && git checkout 904aa530b5f59387f19feb0dbe0e959de3f247d2
+
+FROM metrics-base as metrics-rustup
+RUN git clone https://github.com/rust-lang/rustup.git
+WORKDIR /code/rustup/
+RUN git fetch && git checkout 849adb7c1b8c97e4145e350a934c3a665f61798e
+
+FROM metrics-radn as metrics
+COPY metrics.py /code/metrics.py
+RUN python3 /code/metrics.py
+
+FROM python:3.11
+RUN python3 -m pip install matplotlib
+WORKDIR /code/
+COPY --from=metrics /code/metrics.json metrics.json
+COPY render.py render.py
+RUN python3 render.py
diff --git a/xmetrics/docker-compose.yml b/xmetrics/docker-compose.yml
new file mode 100644
index 0000000..6d3cb9c
--- /dev/null
+++ b/xmetrics/docker-compose.yml
@@ -0,0 +1,6 @@
+services:
+  metrics:
+    container_name: temp-metrics
+    build: .
+    tty: true
+    stop_signal: SIGKILL
diff --git a/xmetrics/metrics.py b/xmetrics/metrics.py
new file mode 100644
index 0000000..c032c1d
--- /dev/null
+++ b/xmetrics/metrics.py
@@ -0,0 +1,42 @@
+import json
+import os
+from collections import Counter
+from pathlib import Path
+from subprocess import check_output
+
+commits = check_output(["git", "log", "--pretty=%H", "--topo-order"], text=True).splitlines()
+entries = []
+last_ctr = Counter()
+last_cor = []
+cors = []
+for i, commit in enumerate(reversed(commits)):
+    print("running", commit)
+    check_output(["git", "checkout", commit], text=True)
+    current_ctr = Counter()
+    for path in Path(os.getenv("SRCDIR", "src")).rglob(os.getenv("SRCPATTERN", "*.rs")):
+        lines = path.read_bytes().splitlines()
+        lines = (line.strip() for line in lines)
+        lines = (line for line in lines if line)
+        current_ctr.update(lines)
+    added = current_ctr - last_ctr
+    deleted = last_ctr - current_ctr
+    entries.append((i, current_ctr.total(), added.total(), deleted.total()))
+    current_cor = []
+    common_ctr = current_ctr & last_ctr
+    for j, line in reversed(last_cor):
+        if common_ctr[line]:
+            common_ctr[line] -= 1
+            current_cor.append((j, line))
+    current_cor.reverse()
+    for line in added.elements():
+        current_cor.append((i, line))
+    cor_ctr = Counter(j for j, _ in current_cor)
+    assert len(current_cor) == cor_ctr.total() == current_ctr.total()
+    cors.append([0] * i)
+    for j, cor in enumerate(cors):
+        cor.append(cor_ctr[j])
+    last_ctr = current_ctr
+    last_cor = current_cor
+print(sum(sum(cor) for cor in cors))
+with open("/code/metrics.json", "w") as file:
+    json.dump({"entries": entries, "cors": cors}, file)
diff --git a/xmetrics/render.py b/xmetrics/render.py
new file mode 100644
index 0000000..02de14a
--- /dev/null
+++ b/xmetrics/render.py
@@ -0,0 +1,43 @@
+import json
+
+import matplotlib.pyplot as plt
+import numpy as np
+from matplotlib.colors import hsv_to_rgb
+
+plt.rcParams["figure.figsize"] = [18, 9]
+plt.style.use("dark_background")
+plt.subplots_adjust(left=0.05, right=0.99, top=0.95, bottom=0.05)
+
+
+with open("metrics.json", "r") as file:
+    metrics = json.load(file)
+    entries = metrics["entries"]
+    cors = metrics["cors"]
+
+
+def render_ploc():
+    X, Y, Ya, Yd = np.array(entries).transpose()
+    plt.clf()
+    plt.plot(X, Y)
+    plt.fill_between(X, Y, Y - Ya, alpha=0.5, color="green")
+    plt.fill_between(X, Y, Y + Yd, alpha=0.5, color="red")
+    plt.savefig("/code/metrics.png")
+
+
+def render_cors():
+    N = len(cors[0])
+    X = np.arange(N)
+    Y = np.array(cors)
+    plt.clf()
+    C = N
+    plt.stackplot(
+        X,
+        Y,
+        colors=[hsv_to_rgb((i / C, 0.25, 0.75)) for i in range(C)],
+        aa=False,
+    )
+    plt.savefig("/code/metrics-cors.png")
+
+
+render_ploc()
+render_cors()
diff --git a/xmetrics/render.sh b/xmetrics/render.sh
new file mode 100755
index 0000000..0d8980f
--- /dev/null
+++ b/xmetrics/render.sh
@@ -0,0 +1,6 @@
+clear
+docker compose up -d --build metrics
+mkdir metrics
+docker cp temp-metrics:/code/metrics.png ./metrics/metrics.png
+docker cp temp-metrics:/code/metrics-cors.png ./metrics/metrics-cors.png
+docker compose down