diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -47,8 +47,12 @@ set(GIT2CPP_SRC
     ${GIT2CPP_SOURCE_DIR}/subcommand/checkout_subcommand.hpp
     ${GIT2CPP_SOURCE_DIR}/subcommand/clone_subcommand.cpp
     ${GIT2CPP_SOURCE_DIR}/subcommand/clone_subcommand.hpp
+    ${GIT2CPP_SOURCE_DIR}/subcommand/commit_subcommand.cpp
+    ${GIT2CPP_SOURCE_DIR}/subcommand/commit_subcommand.hpp
     ${GIT2CPP_SOURCE_DIR}/subcommand/init_subcommand.cpp
     ${GIT2CPP_SOURCE_DIR}/subcommand/init_subcommand.hpp
+    ${GIT2CPP_SOURCE_DIR}/subcommand/reset_subcommand.cpp
+    ${GIT2CPP_SOURCE_DIR}/subcommand/reset_subcommand.hpp
     ${GIT2CPP_SOURCE_DIR}/subcommand/status_subcommand.cpp
     ${GIT2CPP_SOURCE_DIR}/subcommand/status_subcommand.hpp
     ${GIT2CPP_SOURCE_DIR}/utils/common.cpp
@@ -69,6 +73,8 @@ set(GIT2CPP_SRC
     ${GIT2CPP_SOURCE_DIR}/wrapper/refs_wrapper.hpp
     ${GIT2CPP_SOURCE_DIR}/wrapper/repository_wrapper.cpp
     ${GIT2CPP_SOURCE_DIR}/wrapper/repository_wrapper.hpp
+    ${GIT2CPP_SOURCE_DIR}/wrapper/signature_wrapper.cpp
+    ${GIT2CPP_SOURCE_DIR}/wrapper/signature_wrapper.hpp
     ${GIT2CPP_SOURCE_DIR}/wrapper/status_wrapper.cpp
     ${GIT2CPP_SOURCE_DIR}/wrapper/status_wrapper.hpp
     ${GIT2CPP_SOURCE_DIR}/wrapper/wrapper_base.hpp

diff --git a/src/main.cpp b/src/main.cpp
@@ -8,7 +8,9 @@
 #include "subcommand/branch_subcommand.hpp"
 #include "subcommand/checkout_subcommand.hpp"
 #include "subcommand/clone_subcommand.hpp"
+#include "subcommand/commit_subcommand.hpp"
 #include "subcommand/init_subcommand.hpp"
+#include "subcommand/reset_subcommand.hpp"
 #include "subcommand/status_subcommand.hpp"
 
 int main(int argc, char** argv)
@@ -29,6 +31,8 @@ int main(int argc, char** argv)
         branch_subcommand branch(lg2_obj, app);
         checkout_subcommand checkout(lg2_obj, app);
         clone_subcommand clone(lg2_obj, app);
+        commit_subcommand commit(lg2_obj, app);
+        reset_subcommand reset(lg2_obj, app);
 
         app.require_subcommand(/* min */ 0, /* max */ 1);
 

diff --git a/src/subcommand/add_subcommand.cpp b/src/subcommand/add_subcommand.cpp
@@ -31,9 +31,11 @@ void add_subcommand::run()
     if (m_all_flag)
     {
         index.add_all();
+        index.write();
     }
     else
     {
         index.add_entries(m_add_files);
+        index.write();
     }
 }
diff --git a/src/subcommand/commit_subcommand.cpp b/src/subcommand/commit_subcommand.cpp
@@ -0,0 +1,37 @@
+#include <git2.h>
+#include <unistd.h>
+
+#include "commit_subcommand.hpp"
+#include "../wrapper/index_wrapper.hpp"
+#include "../wrapper/repository_wrapper.hpp"
+
+
+commit_subcommand::commit_subcommand(const libgit2_object&, CLI::App& app)
+{
+    auto *sub = app.add_subcommand("commit", "Record changes to the repository");
+
+    sub->add_option("-m,--message", m_commit_message, "Commit message");
+
+    sub->callback([this]() { this->run(); });
+};
+
+
+void commit_subcommand::run()
+{
+    auto directory = get_current_git_path();
+    auto bare = false;
+    auto repo = repository_wrapper::init(directory, bare);
+    auto author_committer_signatures = signature_wrapper::get_default_signature_from_env(repo);
+
+    if (m_commit_message.empty())
+    {
+        std::cout << "Please enter a commit message:" << std::endl;
+        std::getline(std::cin, m_commit_message);
+        if (m_commit_message.empty())
+        {
+            throw std::runtime_error("Aborting, no commit message specified.");
+        }
+    }
+
+    repo.create_commit(author_committer_signatures, m_commit_message);
+}
diff --git a/src/subcommand/commit_subcommand.hpp b/src/subcommand/commit_subcommand.hpp
@@ -0,0 +1,16 @@
+#pragma once
+
+#include <CLI/CLI.hpp>
+
+#include "../utils/common.hpp"
+
+class commit_subcommand
+{
+public:
+
+    explicit commit_subcommand(const libgit2_object&, CLI::App& app);
+    void run();
+
+private:
+    std::string m_commit_message;
+};
diff --git a/src/subcommand/reset_subcommand.cpp b/src/subcommand/reset_subcommand.cpp
@@ -0,0 +1,61 @@
+#include "reset_subcommand.hpp"
+// #include "../wrapper/index_wrapper.hpp"
+#include "../wrapper/repository_wrapper.hpp"
+#include <stdexcept>
+
+enum class reset_type
+{
+    GIT_RESET_SOFT = 1,
+    GIT_RESET_MIXED = 2,
+    GIT_RESET_HARD = 3
+};
+
+reset_subcommand::reset_subcommand(const libgit2_object&, CLI::App& app)
+{
+    auto *sub = app.add_subcommand("reset", "Reset current HEAD to the specified state");
+
+    sub->add_option("<commit>", m_commit, "The ID of the commit that will become HEAD");
+
+    sub->add_flag("--soft", m_soft_flag, "");
+    sub->add_flag("--mixed", m_mixed_flag, "");
+    sub->add_flag("--hard", m_hard_flag, "");
+
+    sub->callback([this]() { this->run(); });
+};
+
+
+void reset_subcommand::run()
+{
+    auto directory = get_current_git_path();
+    auto bare = false;
+    auto repo = repository_wrapper::init(directory, bare);
+
+    auto target = repo.revparse_single(m_commit);
+    if (!target)
+    {
+        throw std::runtime_error("Target revision not found.");
+    }
+
+    git_checkout_options options;
+    git_checkout_options_init(&options, GIT_CHECKOUT_OPTIONS_VERSION);
+
+    git_reset_t reset_type;
+    if (m_soft_flag)
+    {
+        reset_type = GIT_RESET_SOFT;
+    }
+    if (m_mixed_flag)
+    {
+        reset_type = GIT_RESET_MIXED;
+    }
+    if (m_hard_flag)
+    {
+        reset_type = GIT_RESET_HARD;
+        if (m_commit.empty())
+        {
+            m_commit = "HEAD";
+        }
+    }
+
+    repo.reset(target.value(), reset_type, options);
+}
diff --git a/src/subcommand/reset_subcommand.hpp b/src/subcommand/reset_subcommand.hpp
@@ -0,0 +1,19 @@
+#pragma once
+
+#include <CLI/CLI.hpp>
+
+#include "../utils/common.hpp"
+
+class reset_subcommand
+{
+public:
+
+    explicit reset_subcommand(const libgit2_object&, CLI::App& app);
+    void run();
+
+private:
+    std::string m_commit;
+    bool m_soft_flag = false;
+    bool m_mixed_flag = false;
+    bool m_hard_flag = false;
+};
diff --git a/src/wrapper/commit_wrapper.cpp b/src/wrapper/commit_wrapper.cpp
@@ -20,4 +20,3 @@ const git_oid& commit_wrapper::oid() const
 {
     return *git_commit_id(p_resource);
 }
-
diff --git a/src/wrapper/commit_wrapper.hpp b/src/wrapper/commit_wrapper.hpp
@@ -2,6 +2,7 @@
 
 #include <git2.h>
 
+#include "../wrapper/repository_wrapper.hpp"
 #include "../wrapper/wrapper_base.hpp"
 
 class commit_wrapper : public wrapper_base<git_commit>

diff --git a/src/wrapper/index_wrapper.cpp b/src/wrapper/index_wrapper.cpp
@@ -32,5 +32,17 @@ void index_wrapper::add_impl(std::vector<std::string> patterns)
 {
     git_strarray_wrapper array{patterns};
     throw_if_error(git_index_add_all(*this, array, 0, NULL, NULL));
+    // throw_if_error(git_index_write(*this));
+}
+
+void index_wrapper::write()
+{
     throw_if_error(git_index_write(*this));
 }
+
+git_oid index_wrapper::write_tree()
+{
+    git_oid tree_id;
+    throw_if_error(git_index_write_tree(&tree_id, *this));
+    return tree_id;
+}
diff --git a/src/wrapper/index_wrapper.hpp b/src/wrapper/index_wrapper.hpp
@@ -20,6 +20,9 @@ class index_wrapper : public wrapper_base<git_index>
 
     static index_wrapper init(repository_wrapper& rw);
 
+    void write();
+    git_oid write_tree();
+
     void add_entries(std::vector<std::string> patterns);
     void add_all();
 

diff --git a/src/wrapper/object_wrapper.cpp b/src/wrapper/object_wrapper.cpp
@@ -15,3 +15,8 @@ const git_oid& object_wrapper::oid() const
 {
     return *git_object_id(*this);
 }
+
+object_wrapper::operator git_commit*() const noexcept
+{
+     return reinterpret_cast<git_commit*>(p_resource);
+}
diff --git a/src/wrapper/object_wrapper.hpp b/src/wrapper/object_wrapper.hpp
@@ -17,6 +17,8 @@ class object_wrapper : public wrapper_base<git_object>
 
     const git_oid& oid() const;
 
+    operator git_commit*() const noexcept;
+
 private:
 
     object_wrapper(git_object* obj);

diff --git a/src/wrapper/repository_wrapper.cpp b/src/wrapper/repository_wrapper.cpp
@@ -1,4 +1,6 @@
 #include "../utils/git_exception.hpp"
+#include "../wrapper/index_wrapper.hpp"
+#include "../wrapper/object_wrapper.hpp"
 #include "../wrapper/repository_wrapper.hpp"
 
 repository_wrapper::~repository_wrapper()
@@ -107,6 +109,35 @@ commit_wrapper repository_wrapper::find_commit(const git_oid& id) const
     return commit_wrapper(commit);
 }
 
+void repository_wrapper::create_commit(const signature_wrapper::author_committer_signatures& author_committer_signatures,
+    const std::string& message)
+{
+    const char* message_encoding = "UTF-8";
+    git_oid commit_id;
+
+    std::string update_ref = "HEAD";
+    auto parent = revparse_single(update_ref);
+    std::size_t parent_count = 0;
+    const git_commit* parents[1] = {nullptr};
+    if (parent)
+    {
+        parent_count = 1;
+        parents[0] = *parent;
+    }
+
+    git_tree* tree;
+    index_wrapper index = this->make_index();
+    git_oid tree_id = index.write_tree();
+    index.write();
+
+    throw_if_error(git_tree_lookup(&tree, *this, &tree_id));
+
+    throw_if_error(git_commit_create(&commit_id, *this, update_ref.c_str(), author_committer_signatures.first, author_committer_signatures.second,
+        message_encoding, message.c_str(), tree, parent_count, parents));
+
+    git_tree_free(tree);
+}
+
 annotated_commit_wrapper repository_wrapper::find_annotated_commit(const git_oid& id) const
 {
     git_annotated_commit* commit;
@@ -130,3 +161,10 @@ void repository_wrapper::set_head_detached(const annotated_commit_wrapper& commi
 {
     throw_if_error(git_repository_set_head_detached_from_annotated(*this, commit));
 }
+
+void repository_wrapper::reset(const object_wrapper& target, git_reset_t reset_type, const git_checkout_options& checkout_options)
+{
+    // TODO: gerer l'index
+
+    throw_if_error(git_reset(*this, target, reset_type, &checkout_options));
+}
diff --git a/src/wrapper/repository_wrapper.hpp b/src/wrapper/repository_wrapper.hpp
@@ -13,6 +13,7 @@
 #include "../wrapper/index_wrapper.hpp"
 #include "../wrapper/object_wrapper.hpp"
 #include "../wrapper/refs_wrapper.hpp"
+#include "../wrapper/signature_wrapper.hpp"
 #include "../wrapper/wrapper_base.hpp"
 
 class repository_wrapper : public wrapper_base<git_repository>
@@ -50,6 +51,7 @@ class repository_wrapper : public wrapper_base<git_repository>
     // Commits
     commit_wrapper find_commit(std::string_view ref_name = "HEAD") const;
     commit_wrapper find_commit(const git_oid& id) const;
+    void create_commit(const signature_wrapper::author_committer_signatures&, const std::string&);
 
     // Annotated commits
     annotated_commit_wrapper find_annotated_commit(const git_oid& id) const;
@@ -60,9 +62,10 @@ class repository_wrapper : public wrapper_base<git_repository>
     // Objects
     std::optional<object_wrapper> revparse_single(std::string_view spec) const;
 
-    // Set head
+    // Head manipulations
     void set_head(std::string_view ref_name);
     void set_head_detached(const annotated_commit_wrapper& commit);
+    void reset(const object_wrapper& target, git_reset_t reset_type, const git_checkout_options& checkout_options);
 
 private:
 

diff --git a/src/wrapper/signature_wrapper.cpp b/src/wrapper/signature_wrapper.cpp
@@ -0,0 +1,17 @@
+#include "../wrapper/repository_wrapper.hpp"
+#include "../wrapper/signature_wrapper.hpp"
+#include "../utils/git_exception.hpp"
+
+signature_wrapper::~signature_wrapper()
+{
+    git_signature_free(p_resource);
+    p_resource=nullptr;
+}
+
+signature_wrapper::author_committer_signatures signature_wrapper::get_default_signature_from_env(repository_wrapper& rw)
+{
+    signature_wrapper author;
+    signature_wrapper committer;
+    throw_if_error(git_signature_default_from_env(&(author.p_resource), &(committer.p_resource), rw));
+    return {std::move(author), std::move(committer)};
+}
diff --git a/src/wrapper/signature_wrapper.hpp b/src/wrapper/signature_wrapper.hpp
@@ -0,0 +1,26 @@
+#pragma once
+
+#include <utility>
+
+#include <git2.h>
+
+#include "../wrapper/wrapper_base.hpp"
+
+class repository_wrapper;
+
+class signature_wrapper : public wrapper_base<git_signature>
+{
+public:
+    using author_committer_signatures = std::pair<signature_wrapper, signature_wrapper>;
+
+    ~signature_wrapper();
+
+    signature_wrapper(signature_wrapper&&) = default;
+    signature_wrapper& operator=(signature_wrapper&&) = default;
+
+    static author_committer_signatures get_default_signature_from_env(repository_wrapper&);
+
+private:
+
+    signature_wrapper() = default;
+};
diff --git a/test/data/status_data/embedded_git/HEAD b/test/data/status_data/embedded_git/HEAD
@@ -1 +1 @@
-ref: refs/heads/main
+ref: refs/heads/commit_test_branch
diff --git a/test/data/status_data/embedded_git/index b/test/data/status_data/embedded_git/index
diff --git a/test/data/status_data/embedded_git/logs/HEAD b/test/data/status_data/embedded_git/logs/HEAD
@@ -1,2 +1,18 @@
 0000000000000000000000000000000000000000 75743dcbd85064226c77a0b862af817838ae0b2e Sandrine Pataut <pataut.sandrine@gmail.com> 1750769952 +0200	commit (initial): first commit
 75743dcbd85064226c77a0b862af817838ae0b2e ee8c4cf874c4f1e3ba755f929fe7811018adee3d Sandrine Pataut <pataut.sandrine@gmail.com> 1750771272 +0200	commit: Second commit
+ee8c4cf874c4f1e3ba755f929fe7811018adee3d ee8c4cf874c4f1e3ba755f929fe7811018adee3d Sandrine Pataut <pataut.sandrine@gmail.com> 1753887403 +0200	checkout: moving from main to bla
+ee8c4cf874c4f1e3ba755f929fe7811018adee3d ee8c4cf874c4f1e3ba755f929fe7811018adee3d Sandrine Pataut <pataut.sandrine@gmail.com> 1753887403 +0200	checkout: moving from bla to main
+ee8c4cf874c4f1e3ba755f929fe7811018adee3d ee8c4cf874c4f1e3ba755f929fe7811018adee3d Sandrine Pataut <pataut.sandrine@gmail.com> 1753887403 +0200	checkout: moving from main to bla
+ee8c4cf874c4f1e3ba755f929fe7811018adee3d ee8c4cf874c4f1e3ba755f929fe7811018adee3d Sandrine Pataut <pataut.sandrine@gmail.com> 1753887403 +0200	checkout: moving from bla to main
+ee8c4cf874c4f1e3ba755f929fe7811018adee3d ee8c4cf874c4f1e3ba755f929fe7811018adee3d Sandrine Pataut <pataut.sandrine@gmail.com> 1753887403 +0200	checkout: moving from main to bla
+ee8c4cf874c4f1e3ba755f929fe7811018adee3d ee8c4cf874c4f1e3ba755f929fe7811018adee3d Sandrine Pataut <pataut.sandrine@gmail.com> 1753887403 +0200	checkout: moving from bla to main
+ee8c4cf874c4f1e3ba755f929fe7811018adee3d ee8c4cf874c4f1e3ba755f929fe7811018adee3d Sandrine Pataut <pataut.sandrine@gmail.com> 1753887403 +0200	checkout: moving from main to bla
+ee8c4cf874c4f1e3ba755f929fe7811018adee3d ee8c4cf874c4f1e3ba755f929fe7811018adee3d Sandrine Pataut <pataut.sandrine@gmail.com> 1753887403 +0200	checkout: moving from bla to main
+ee8c4cf874c4f1e3ba755f929fe7811018adee3d ee8c4cf874c4f1e3ba755f929fe7811018adee3d Sandrine Pataut <pataut.sandrine@gmail.com> 1753887505 +0200	checkout: moving from main to commit_test_branch
+ee8c4cf874c4f1e3ba755f929fe7811018adee3d cba545ef5cc4ddf12a9744b6a49b20dda1ef1d5c Sandrine Pataut <pataut.sandrine@gmail.com> 1753887505 +0200	commit: test commit
+cba545ef5cc4ddf12a9744b6a49b20dda1ef1d5c ee8c4cf874c4f1e3ba755f929fe7811018adee3d Sandrine Pataut <pataut.sandrine@gmail.com> 1753887505 +0200	reset: moving to ee8c4cf874c4f1e3ba755f929fe7811018adee3d
+ee8c4cf874c4f1e3ba755f929fe7811018adee3d ee8c4cf874c4f1e3ba755f929fe7811018adee3d Sandrine Pataut <pataut.sandrine@gmail.com> 1753887505 +0200	checkout: moving from commit_test_branch to main
+ee8c4cf874c4f1e3ba755f929fe7811018adee3d ee8c4cf874c4f1e3ba755f929fe7811018adee3d Sandrine Pataut <pataut.sandrine@gmail.com> 1753887505 +0200	checkout: moving from main to commit_test_branch
+ee8c4cf874c4f1e3ba755f929fe7811018adee3d 75743dcbd85064226c77a0b862af817838ae0b2e Sandrine Pataut <pataut.sandrine@gmail.com> 1753888486 +0200	reset: moving to 75743dcbd85064226c77a0b862af817838ae0b2e
+75743dcbd85064226c77a0b862af817838ae0b2e ee8c4cf874c4f1e3ba755f929fe7811018adee3d Sandrine Pataut <pataut.sandrine@gmail.com> 1753888486 +0200	checkout: moving from commit_test_branch to main
+ee8c4cf874c4f1e3ba755f929fe7811018adee3d ee8c4cf874c4f1e3ba755f929fe7811018adee3d Sandrine Pataut <pataut.sandrine@gmail.com> 1753888486 +0200	checkout: moving from main to commit_test_branch
diff --git a/test/data/status_data/embedded_git/logs/refs/heads/commit_test_branch b/test/data/status_data/embedded_git/logs/refs/heads/commit_test_branch
@@ -0,0 +1 @@
+0000000000000000000000000000000000000000 ee8c4cf874c4f1e3ba755f929fe7811018adee3d Sandrine Pataut <pataut.sandrine@gmail.com> 1753888486 +0200	branch: Created from ee8c4cf874c4f1e3ba755f929fe7811018adee3d
diff --git a/test/data/status_data/embedded_git/objects/a3/079a98067bc027a22dc56fe619c5d30f23d3a6 b/test/data/status_data/embedded_git/objects/a3/079a98067bc027a22dc56fe619c5d30f23d3a6
diff --git a/test/data/status_data/embedded_git/objects/cb/a545ef5cc4ddf12a9744b6a49b20dda1ef1d5c b/test/data/status_data/embedded_git/objects/cb/a545ef5cc4ddf12a9744b6a49b20dda1ef1d5c
Original file line number	Diff line number	Diff line change
Expand Up		@@ -20,4 +20,3 @@ const git_oid& commit_wrapper::oid() const
		{
		return *git_commit_id(p_resource);
		}
Original file line number	Diff line number	Diff line change
		@@ -1 +1 @@
		ref: refs/heads/main
		ref: refs/heads/commit_test_branch
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		0000000000000000000000000000000000000000 ee8c4cf874c4f1e3ba755f929fe7811018adee3d Sandrine Pataut <pataut.sandrine@gmail.com> 1753888486 +0200 branch: Created from ee8c4cf874c4f1e3ba755f929fe7811018adee3d