diff --git a/src/git.cpp b/src/git.cpp
index ee130f2..0bf1110 100644
--- a/src/git.cpp
+++ b/src/git.cpp
@@ -16,8 +16,11 @@
 
 #include "git.hpp"
 #include "files.hpp"
+#include "fs-compat.hpp"
+#include "json.hpp"
 
 #include <cstdint>
+#include <fstream>
 #include <git2.h>
 
 #include <stdexcept>
@@ -27,10 +30,12 @@
 namespace FediBlock
 {
 
+using std::ofstream;
 using std::runtime_error;
 using std::stoull;
 using std::string;
 using std::string_view;
+using std::to_string;
 using std::uint64_t;
 
 git_repository *_repo{nullptr};
@@ -108,4 +113,78 @@ void make_new_branch()
     check_git_error(error);
 }
 
+void make_commit(const entry_type &entry)
+{
+    // Write files.
+    const auto id{get_last_id() + 1};
+    const string basename{get_tmpdir() / "repo" / ("web-" + to_string(id))};
+
+    ofstream file(basename + ".json");
+    if (!file.good())
+    {
+        throw; // FIXME
+    }
+    file << to_json(entry);
+    file.close();
+
+    if (!entry.screenshot_filepath.empty())
+    {
+        // TODO: Add real file extension.
+        fs::copy(entry.screenshot_filepath, basename + ".image");
+    }
+
+    // Add files.
+    int error{0};
+
+    git_index *index{nullptr};
+    error = git_repository_index(&index, _repo);
+    check_git_error(error);
+
+    error = git_index_add_all(index, nullptr, 0, nullptr, nullptr);
+    check_git_error(error);
+
+    error = git_index_write(index);
+    check_git_error(error);
+
+    // Create commit.
+    git_signature *sig;
+    git_oid oid_commit;
+    git_oid oid_tree;
+    git_oid oid_parent;
+    git_tree *tree;
+    git_object *parent{nullptr};
+    git_reference *ref{nullptr};
+
+    error = git_signature_now(&sig, "Web", "Don't @ me");
+    check_git_error(error);
+
+    error = git_revparse_ext(&parent, &ref, _repo, "HEAD");
+    check_git_error(error);
+
+    error = git_repository_index(&index, _repo);
+    check_git_error(error);
+
+    error = git_index_write_tree(&oid_tree, index);
+    check_git_error(error);
+
+    error = git_index_write(index);
+    check_git_error(error);
+
+    error = git_tree_lookup(&tree, _repo, &oid_tree);
+    check_git_error(error);
+
+    error = git_reference_name_to_id(&oid_parent, _repo, "HEAD");
+    check_git_error(error);
+
+    // NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
+    error = git_commit_create_v(&oid_commit, _repo, "HEAD", sig, sig, nullptr,
+                                ("New entry: " + entry.instance).c_str(), tree,
+                                parent != nullptr ? 1 : 0, parent);
+    check_git_error(error);
+
+    git_index_free(index);
+    git_signature_free(sig);
+    git_tree_free(tree);
+}
+
 } // namespace FediBlock
diff --git a/src/git.hpp b/src/git.hpp
index 4474892..e658b58 100644
--- a/src/git.hpp
+++ b/src/git.hpp
@@ -17,6 +17,8 @@
 #ifndef FEDIBLOCK_BACKEND_GIT_HPP
 #define FEDIBLOCK_BACKEND_GIT_HPP
 
+#include "cgi.hpp"
+
 #include <cstdint>
 
 namespace FediBlock
@@ -37,8 +39,8 @@ void clone_repo();
 // Make a new branch for preparing the pull request.
 void make_new_branch();
 
-// Make a new pull request.
-void make_pull_request();
+// Make a new commit.
+void make_commit(const entry_type &entry);
 
 } // namespace FediBlock
 
diff --git a/src/main.cpp b/src/main.cpp
index fffcaa2..35009ab 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -69,6 +69,7 @@ int main()
     clone_repo();
     cout << "Next branch ID: " << get_last_id() + 1 << "\r\n";
     make_new_branch();
+    make_commit(entry);
 
     try
     {