diff --git a/build.py b/build.py
index 7854a8d..9db178e 100755
--- a/build.py
+++ b/build.py
@@ -7,6 +7,7 @@ import json
 import os
 import sys
 import typing
+from collections import Counter
 from datetime import date, datetime, timedelta
 
 import pytz
@@ -26,18 +27,18 @@ url = f"https://{hostname}/api/v1/repos/issues/search"
 
 def download_bugs(state: str) -> list[Bug]:
     """Get all bugs from forgejo."""
-    # params: dict[str, str | int] = {}
-
     all_bugs: list[Bug] = []
     page = 0
+    headers = {"Authorization": "token " + token}
     while bugs := requests.get(
         url,
-        headers={"Authorization": "token " + token},
+        headers=headers,
         params=typing.cast(CallParams, {"state": state, "page": page}),
     ).json():
         if isinstance(bugs, dict):
             print(bugs)
             sys.exit(1)
+
         assert isinstance(bugs, list)
         all_bugs += bugs
         page += 1
@@ -70,8 +71,8 @@ def parse_date(date_str: str | None) -> date | None:
 
 def count_open_bugs(bug_reports: list[Bug]) -> list[tuple[str, int]]:
     """Count the number of open bugs for each date based on a list of bug reports."""
-    open_dates: dict[date, int] = {}
-    close_dates: dict[date, int] = {}
+    open_dates: Counter[date] = Counter()
+    close_dates: Counter[date] = Counter()
 
     # Process each bug report
     seen: set[int] = set()
@@ -80,12 +81,12 @@ def count_open_bugs(bug_reports: list[Bug]) -> list[tuple[str, int]]:
             continue
         seen.add(report["id"])
         open_date = parse_date(report["created_at"])
-        if open_date:
-            open_dates[open_date] = open_dates.get(open_date, 0) + 1
+        assert open_date
+        open_dates[open_date] += 1
 
         close_date = parse_date(report["closed_at"])
         if close_date:
-            close_dates[close_date] = close_dates.get(close_date, 0) + 1
+            close_dates[close_date] += 1
 
     # Create a date range from the earliest open date to the latest close date
     start_date = min(open_dates.keys())
@@ -112,7 +113,8 @@ def main() -> None:
     json_data = json.dumps(open_bugs_over_time)
 
     template_html = open("template.html").read()
-    with open("chart.html", "w") as out:
+    dest = config.get("output", "dest")
+    with open(dest, "w") as out:
         out.write(template_html.replace("jsonData = []", "jsonData = " + json_data))