diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..8493495
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,164 @@
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+cover/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+.pybuilder/
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+#   For a library or package, you might want to ignore these files since the code is
+#   intended to run in multiple environments; otherwise, check them in:
+# .python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
+# poetry
+#   Similar to Pipfile.lock, it is generally recommended to include poetry.lock in version control.
+#   This is especially recommended for binary packages to ensure reproducibility, and is more
+#   commonly ignored for libraries.
+#   https://python-poetry.org/docs/basic-usage/#commit-your-poetrylock-file-to-version-control
+#poetry.lock
+
+# pdm
+#   Similar to Pipfile.lock, it is generally recommended to include pdm.lock in version control.
+#pdm.lock
+#   pdm stores project-wide configurations in .pdm.toml, but it is recommended to not include it
+#   in version control.
+#   https://pdm-project.org/#use-with-ide
+.pdm.toml
+.pdm-python
+.pdm-build/
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow and github.com/pdm-project/pdm
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+# pytype static type analyzer
+.pytype/
+
+# Cython debug symbols
+cython_debug/
+
+# PyCharm
+#  JetBrains specific template is maintained in a separate JetBrains.gitignore that can
+#  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
+#  and can be added to the global gitignore or merged into this file.  For a more nuclear
+#  option (not recommended) you can uncomment the following to ignore the entire idea folder.
+#.idea/
+
+.nix-shell/
diff --git a/daffryn.md b/daffryn.md
new file mode 100644
index 0000000..a19b13d
--- /dev/null
+++ b/daffryn.md
@@ -0,0 +1 @@
+Rifqi Daffa Ariyana - Backend Dev
diff --git a/helloworld.py b/helloworld.py
new file mode 100644
index 0000000..07a504a
--- /dev/null
+++ b/helloworld.py
@@ -0,0 +1,2 @@
+print("Hello World")
+
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..73f12d0
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,15 @@
+[project]
+name = "helloworld"
+version = "0.1"
+description = "Default template for PDM package"
+authors = [
+    {name = "daffryn", email = "ariyanadaffa@gmail.com"},
+]
+dependencies = []
+requires-python = "==3.12.*"
+readme = "README.md"
+license = {text = "MIT"}
+
+
+[tool.pdm]
+distribution = false
diff --git a/shell.nix b/shell.nix
new file mode 100644
index 0000000..f7f3003
--- /dev/null
+++ b/shell.nix
@@ -0,0 +1,93 @@
+# shell.nix
+
+let
+    nixpkgs = fetchTarball "https://github.com/NixOS/nixpkgs/tarball/nixos-23.11";
+    pkgs = import <nixpkgs> { 
+        config = { 
+            allowUnfree = true;
+        };
+        overlays = [];
+    };
+
+    git = pkgs.git.overrideAttrs(oldAttrs: rec {
+        version = "2.42.0";
+    });
+
+    podman = pkgs.podman.overrideAttrs(oldAttrs: rec {
+        version = "4.7.2";
+    });
+
+    postgresql = pkgs.postgresql_15.overrideAttrs(oldAttrs: rec {
+        version = "15.4";
+    });
+in
+
+pkgs.mkShell
+{
+    nativeBuildInputs = with pkgs; [
+        pkgs.git
+        podman
+        nodejs_20
+        python312
+        python312Packages.pip
+        pkgs.pdm
+        redis
+        pkgs.postgresql
+    ];
+    
+    shellHook = ''
+    alias docker=podman
+    export NIX_SHELL_DIR=$PWD/.nix-shell
+    export LC_ALL=C
+    export LANG=C.utf8
+
+    export PGDATA=$NIX_SHELL_DIR/db
+    export PGHOST=localhost
+    export PGUSER=postgres
+    export PGPASSWORD=password
+
+    # Setup PostgreSQL
+    mkdir $NIX_SHELL_DIR
+    
+   trap \
+    "
+      pg_ctl -D $PGDATA stop
+      pkill redis-server
+    " \
+    EXIT
+
+    if ! test -d $PGDATA
+    then
+      initdb -D $PGDATA --no-locale --encoding=UTF8
+    fi
+
+    HOST_COMMON="host\s\+all\s\+all"
+    sed -i "s|^$HOST_COMMON.*127.*$|host all all 0.0.0.0/0 trust|" $PGDATA/pg_hba.conf
+    sed -i "s|^$HOST_COMMON.*::1.*$|host all all ::/0 trust|"      $PGDATA/pg_hba.conf
+
+    pg_ctl                                                  \
+      -D $PGDATA                                            \
+      -l $PGDATA/postgres.log                               \
+      -o "-c unix_socket_directories='$PGDATA'"             \
+      -o "-c listen_addresses='*'"                          \
+      -o "-c log_destination='stderr'"                      \
+      -o "-c logging_collector=on"                          \
+      -o "-c log_directory='log'"                           \
+      -o "-c log_filename='postgresql-%Y-%m-%d_%H%M%S.log'" \
+      -o "-c log_min_messages=info"                         \
+      -o "-c log_min_error_statement=info"                  \
+      -o "-c log_connections=on"                            \
+      start
+
+    echo "Setup database.. To access DB: psql -U $PGUSER -d postgres"
+    if ! psql -U $(whoami) -tAc "SELECT 1 FROM pg_database WHERE datname='django_sql'" | grep -q 1; then
+      createuser -U $(whoami)
+      psql -U $(whoami) -d postgres -c "CREATE DATABASE $(whoami) OWNER $(whoami);" || true
+      psql -U $(whoami) -d postgres -c "ALTER ROLE $PGUSER SUPERUSER;"
+      psql -U "$PGUSER" -d postgres -c "CREATE DATABASE django_sql" || true
+    fi
+
+    echo "Run redis.. See log on $NIX_SHELL_DIR/redis.log"
+    nohup redis-server > $NIX_SHELL_DIR/redis.log 2>&1 &
+  '';
+}
\ No newline at end of file
diff --git a/src/helloworld/__init__.py b/src/helloworld/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/tests/__init__.py b/tests/__init__.py
new file mode 100644
index 0000000..e69de29