diff --git a/src/initcpio.cpp b/src/initcpio.cpp
index 4c89173..fd83b59 100644
--- a/src/initcpio.cpp
+++ b/src/initcpio.cpp
@@ -3,6 +3,7 @@
 
 #include <fstream>  // for ofstream
 
+#include <fmt/core.h>
 #include <fmt/format.h>
 
 #if defined(__clang__)
@@ -62,4 +63,33 @@ bool Initcpio::write() const noexcept {
     return true;
 }
 
+bool Initcpio::parse_file() noexcept {
+    auto&& file_content  = utils::read_whole_file(m_file_path);
+
+    const auto& parse_line = [](auto&& line) -> std::vector<std::string> {
+        auto&& open_bracket_pos = line.find('(');
+        auto&& close_bracket = ranges::find(line, ')');
+        if (open_bracket_pos != std::string::npos && close_bracket != line.end()) {
+            const auto length = ranges::distance(line.begin() + static_cast<long>(open_bracket_pos), close_bracket - 1);
+
+            auto&& input_data = line.substr(open_bracket_pos + 1, static_cast<std::size_t>(length));
+            return input_data | ranges::views::split(' ') | ranges::to<std::vector<std::string>>();
+        }
+        return {};
+    };
+
+    auto&& file_content_lines = utils::make_multiline(file_content);
+    for (auto&& line : file_content_lines) {
+        if (line.starts_with("MODULES")) {
+            modules = parse_line(line);
+        } else if (line.starts_with("FILES")) {
+            files = parse_line(line);
+        } else if (line.starts_with("HOOKS")) {
+            hooks = parse_line(line);
+        }
+    }
+
+    return true;
+}
+
 }  // namespace detail
diff --git a/src/initcpio.hpp b/src/initcpio.hpp
index 848ae3c..6cec77f 100644
--- a/src/initcpio.hpp
+++ b/src/initcpio.hpp
@@ -11,6 +11,19 @@ class Initcpio {
  public:
     Initcpio(const std::string_view& file_path) noexcept : m_file_path(file_path) {}
     
+    bool parse_file() noexcept;
+
+    inline bool append_module(std::string&& module) noexcept {
+        if (!this->parse_file()) { return false; }
+        modules.emplace_back(std::move(module));
+        return this->write();
+    }
+    inline bool append_hook(std::string&& hook) noexcept {
+        if (!this->parse_file()) { return false; }
+        hooks.emplace_back(std::move(hook));
+        return this->write();
+    }
+
     bool write() const noexcept;
     
     std::vector<std::string> modules{};
diff --git a/tests/unit-initcpio.cpp b/tests/unit-initcpio.cpp
index f00443d..f5e994d 100644
--- a/tests/unit-initcpio.cpp
+++ b/tests/unit-initcpio.cpp
@@ -28,7 +28,7 @@ HOOKS=(base udev autodetect modconf block filesystems keyboard fsck)
 
 static constexpr auto MKINITCPIO_TEST = R"(
 # MODULES
-MODULES=(crc32c-intel)
+MODULES=(radeon crc32c-intel)
 
 # BINARIES
 BINARIES=()
@@ -37,7 +37,7 @@ BINARIES=()
 FILES=()
 
 # HOOKS
-HOOKS=(base usr lvm2 zfs)
+HOOKS=(base udev autodetect modconf block filesystems keyboard fsck btrfs usr lvm2 zfs)
 )";
 
 
@@ -55,15 +55,17 @@ int main() {
     auto initcpio = detail::Initcpio{filename};
 
     // Insert data.
+    initcpio.append_module("radeon");
+    initcpio.append_hook("btrfs");
     initcpio.modules.insert(initcpio.modules.end(), {"crc32c-intel"});
-    initcpio.hooks.insert(initcpio.hooks.end(), {"base", "usr", "lvm2", "zfs"});
+    initcpio.hooks.insert(initcpio.hooks.end(), {"usr", "lvm2", "zfs"});
 
     // Write data.
     assert(initcpio.write());
 
     // Check if file is equal to test data.
     // "\n# MODULES\nMODULES=(crc32c-intel)\n\n# BINARIES\nBINARIES=()\n\n# FILES\nFILES=()\n\n# HOOKS\nHOOKS=(base usr lvm2 zfs)"\n
-    const auto&& file_content = utils::read_whole_file(filename);
+    const auto& file_content = utils::read_whole_file(filename);
     assert(file_content == MKINITCPIO_TEST);
 
     // Cleanup.