diff --git a/meson_options.txt b/meson_options.txt
index 65530a06..b175ad0f 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -75,3 +75,8 @@ option('with-upd', type: 'boolean',
 option('with-perl-legacy-api', type: 'boolean', value: false,
   description: 'Enables the legacy IRC perl module for compatibility with old scripts'
 )
+
+# Build inputs
+option('public-suffix-list', type: 'string', value: '',
+  description: 'Path to a local public_suffix_list.dat to generate the URL detection rules from instead of downloading it'
+)
diff --git a/src/common/gen-public-suffix.py b/src/common/gen-public-suffix.py
index cd3a96e6..1a392fc8 100644
--- a/src/common/gen-public-suffix.py
+++ b/src/common/gen-public-suffix.py
@@ -38,16 +38,16 @@ def main():
     if len(sys.argv) not in (2, 3):
         raise SystemExit("usage: gen-public-suffix.py <output> [source]")
     output = Path(sys.argv[1])
-    sources = []
     if len(sys.argv) == 3:
-        sources.append(Path(sys.argv[2]))
-    sources.extend(
-        [
-            Path(__file__).with_name("public_suffix_list.dat"),
-            Path("/usr/share/publicsuffix/public_suffix_list.dat"),
-            Path("/app/share/publicsuffix/public_suffix_list.dat"),
-        ]
-    )
+        # An explicit source is authoritative, don't go online behind its back.
+        rules = parse_rules(Path(sys.argv[2]).read_text(encoding="utf-8"))
+        emit_header(str(output), rules)
+        return
+    sources = [
+        Path(__file__).with_name("public_suffix_list.dat"),
+        Path("/usr/share/publicsuffix/public_suffix_list.dat"),
+        Path("/app/share/publicsuffix/public_suffix_list.dat"),
+    ]
     data = None
     for url in URLS:
         try:
diff --git a/src/common/meson.build b/src/common/meson.build
index b7ca6afe..13c269b7 100644
--- a/src/common/meson.build
+++ b/src/common/meson.build
@@ -110,9 +110,15 @@ make_te = find_program('make-te.py')
 
 python3 = find_program('python3', required: true)
 
+public_suffix_cmd = [python3, files('gen-public-suffix.py'), '@OUTPUT@']
+public_suffix_list = get_option('public-suffix-list')
+if public_suffix_list != ''
+  public_suffix_cmd += public_suffix_list
+endif
+
 public_suffix_data = custom_target('public_suffix_data_h',
   output: 'public_suffix_data.h',
-  command: [python3, files('gen-public-suffix.py'), '@OUTPUT@']
+  command: public_suffix_cmd
 )
 
 emoji_data_table = custom_target('emoji_data_table_h',
diff --git a/src/common/network.c b/src/common/network.c
index 8892b3e5..54ef749d 100644
--- a/src/common/network.c
+++ b/src/common/network.c
@@ -166,7 +166,7 @@ net_resolve (netstore * ns, char *hostname, int port, char **real_host)
 	sprintf (portstring, "%d", port);
 
 	memset (&hints, 0, sizeof (struct addrinfo));
-	hints.ai_family = PF_UNSPEC; /* support ipv6 and ipv4 */
+	hints.ai_family = AF_UNSPEC; /* support ipv6 and ipv4 */
 	hints.ai_flags = AI_CANONNAME | AI_ADDRCONFIG;
 	hints.ai_socktype = SOCK_STREAM;