diff --git a/LICENSE b/LICENSE
index 20f60e77429..6bd650197b0 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2018 Jaakko Pasanen
+Copyright (c) 2018-2022 Jaakko Pasanen
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/README.md b/README.md
index b80a067db54..b76249a0edf 100644
--- a/README.md
+++ b/README.md
@@ -326,7 +326,7 @@ python -m pip install -U pip
 ```
 - Install required packages
 ```shell
-python -m pip install -U -r requirements.txt
+python -m pip install -U -e .
 ```
 - Verify installation. If everything went well, you'll see the list of command line parameters AutoEq accepts.
 ```shell
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 00000000000..f90275f8ce3
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,35 @@
+[build-system]
+requires = [
+    "hatchling",
+]
+build-backend = "hatchling.build"
+
+[project]
+name = "autoeq"
+version = "2.0.0"
+authors = [
+  { name="Jaakko Pasanen", email="jaakko.o.pasanen@gmail.com" },
+]
+description = "Automatic headphone equalizer config generator"
+readme = "README.md"
+requires-python = ">=3.7"
+classifiers = [
+    "Programming Language :: Python :: 3",
+    "License :: OSI Approved :: MIT License",
+    "Operating System :: OS Independent",
+]
+dependencies = [
+    'Pillow~=9.2.0',
+    'matplotlib~=3.5.2',
+    'pandas~=1.4.3',
+    'scipy~=1.8.1',
+    'numpy~=1.23.1',
+    'tabulate~=0.8.10',
+    'soundfile~=0.10.2',
+    'pyyaml~=6.0',
+    'tqdm~=4.64.0',
+]
+
+[project.urls]
+"Homepage" = "https://github.com/jaakkopasanen/AutoEq"
+"Bug Tracker" = "https://github.com/jaakkopasanen/AutoEq/issues"
diff --git a/requirements.txt b/requirements.txt
deleted file mode 100644
index eafd4184a67..00000000000
--- a/requirements.txt
+++ /dev/null
@@ -1,9 +0,0 @@
-Pillow~=9.2.0
-matplotlib~=3.5.2
-pandas~=1.4.3
-scipy~=1.8.1
-numpy~=1.23.1
-tabulate~=0.8.10
-soundfile~=0.10.2
-pyyaml~=6.0
-tqdm~=4.64.0
diff --git a/autoeq/__init__.py b/src/autoeq/__init__.py
similarity index 100%
rename from autoeq/__init__.py
rename to src/autoeq/__init__.py
diff --git a/autoeq/__main__.py b/src/autoeq/__main__.py
similarity index 98%
rename from autoeq/__main__.py
rename to src/autoeq/__main__.py
index d8841efd7a7..bc04dd92a31 100644
--- a/autoeq/__main__.py
+++ b/src/autoeq/__main__.py
@@ -3,10 +3,10 @@
 import multiprocessing
 import warnings
 
-from .constants import DEFAULT_MAX_GAIN, DEFAULT_TREBLE_F_LOWER, DEFAULT_TREBLE_F_UPPER, \
+from autoeq.constants import DEFAULT_MAX_GAIN, DEFAULT_TREBLE_F_LOWER, DEFAULT_TREBLE_F_UPPER, \
     DEFAULT_TREBLE_GAIN_K, DEFAULT_FS, DEFAULT_BIT_DEPTH, DEFAULT_PHASE, DEFAULT_F_RES, DEFAULT_BASS_BOOST_FC, \
     DEFAULT_BASS_BOOST_Q, DEFAULT_SMOOTHING_WINDOW_SIZE, DEFAULT_TREBLE_SMOOTHING_WINDOW_SIZE
-from .autoeq import batch_processing
+from autoeq.batch_processing import batch_processing
 
 
 def cli_args():
diff --git a/autoeq/autoeq.py b/src/autoeq/batch_processing.py
similarity index 98%
rename from autoeq/autoeq.py
rename to src/autoeq/batch_processing.py
index 51aac6110ee..d5fd60a14a4 100644
--- a/autoeq/autoeq.py
+++ b/src/autoeq/batch_processing.py
@@ -4,16 +4,15 @@
 from glob import glob
 import multiprocessing
 import soundfile as sf
-from time import time
 import numpy as np
 import tqdm
 import yaml
 
-from .constants import DEFAULT_MAX_GAIN, DEFAULT_TREBLE_F_LOWER, DEFAULT_TREBLE_F_UPPER, \
+from autoeq.constants import DEFAULT_MAX_GAIN, DEFAULT_TREBLE_F_LOWER, DEFAULT_TREBLE_F_UPPER, \
     DEFAULT_TREBLE_GAIN_K, DEFAULT_FS, DEFAULT_BIT_DEPTH, DEFAULT_PHASE, DEFAULT_F_RES, DEFAULT_BASS_BOOST_GAIN, \
     DEFAULT_BASS_BOOST_FC, DEFAULT_BASS_BOOST_Q, DEFAULT_SMOOTHING_WINDOW_SIZE, \
     DEFAULT_TREBLE_SMOOTHING_WINDOW_SIZE, PEQ_CONFIGS
-from .frequency_response import FrequencyResponse
+from autoeq.frequency_response import FrequencyResponse
 
 
 def batch_processing(input_dir=None, output_dir=None, new_only=False, standardize_input=False, compensation=None,
diff --git a/autoeq/constants.py b/src/autoeq/constants.py
similarity index 100%
rename from autoeq/constants.py
rename to src/autoeq/constants.py
diff --git a/autoeq/frequency_response.py b/src/autoeq/frequency_response.py
similarity index 99%
rename from autoeq/frequency_response.py
rename to src/autoeq/frequency_response.py
index 9b3cdfadd9f..214923da88c 100644
--- a/autoeq/frequency_response.py
+++ b/src/autoeq/frequency_response.py
@@ -18,7 +18,7 @@
 from PIL import Image
 import re
 import warnings
-from .constants import DEFAULT_F_MIN, DEFAULT_F_MAX, DEFAULT_STEP, DEFAULT_MAX_GAIN, DEFAULT_TREBLE_F_LOWER, \
+from autoeq.constants import DEFAULT_F_MIN, DEFAULT_F_MAX, DEFAULT_STEP, DEFAULT_MAX_GAIN, DEFAULT_TREBLE_F_LOWER, \
     DEFAULT_TREBLE_F_UPPER, DEFAULT_TREBLE_GAIN_K, DEFAULT_SMOOTHING_WINDOW_SIZE, \
     DEFAULT_SMOOTHING_ITERATIONS, DEFAULT_TREBLE_SMOOTHING_F_LOWER, DEFAULT_TREBLE_SMOOTHING_F_UPPER, \
     DEFAULT_TREBLE_SMOOTHING_WINDOW_SIZE, DEFAULT_TREBLE_SMOOTHING_ITERATIONS, DEFAULT_TILT, DEFAULT_FS, \
@@ -26,7 +26,7 @@
     DEFAULT_BASS_BOOST_Q, DEFAULT_GRAPHIC_EQ_STEP, HARMAN_INEAR_PREFENCE_FREQUENCIES, \
     HARMAN_ONEAR_PREFERENCE_FREQUENCIES, PREAMP_HEADROOM, DEFAULT_MAX_SLOPE, \
     DEFAULT_BIQUAD_OPTIMIZATION_F_STEP
-from .peq import PEQ, LowShelf
+from autoeq.peq import PEQ, LowShelf
 
 warnings.filterwarnings("ignore", message="Values in x were outside bounds during a minimize step, clipping to bounds")
 
diff --git a/autoeq/peq.py b/src/autoeq/peq.py
similarity index 99%
rename from autoeq/peq.py
rename to src/autoeq/peq.py
index 640e55ef2ca..e37a9f45e24 100644
--- a/autoeq/peq.py
+++ b/src/autoeq/peq.py
@@ -7,7 +7,7 @@
 from scipy.signal import find_peaks
 from tabulate import tabulate
 
-from .constants import DEFAULT_SHELF_FILTER_MIN_FC, DEFAULT_SHELF_FILTER_MAX_FC, DEFAULT_SHELF_FILTER_MIN_Q, \
+from autoeq.constants import DEFAULT_SHELF_FILTER_MIN_FC, DEFAULT_SHELF_FILTER_MAX_FC, DEFAULT_SHELF_FILTER_MIN_Q, \
     DEFAULT_SHELF_FILTER_MAX_Q, DEFAULT_SHELF_FILTER_MIN_GAIN, DEFAULT_SHELF_FILTER_MAX_GAIN, \
     DEFAULT_PEAKING_FILTER_MIN_FC, DEFAULT_PEAKING_FILTER_MAX_FC, DEFAULT_PEAKING_FILTER_MIN_Q, \
     DEFAULT_PEAKING_FILTER_MAX_Q, DEFAULT_PEAKING_FILTER_MIN_GAIN, DEFAULT_PEAKING_FILTER_MAX_GAIN, \
diff --git a/setup.py b/tests/__init__.py
similarity index 100%
rename from setup.py
rename to tests/__init__.py
diff --git a/tests/test_autoeq.py b/tests/test_autoeq.py
index 44e7d63578b..530b122439b 100644
--- a/tests/test_autoeq.py
+++ b/tests/test_autoeq.py
@@ -6,7 +6,7 @@
 import unittest
 import pandas as pd
 from autoeq.frequency_response import FrequencyResponse
-from autoeq.autoeq import batch_processing
+from autoeq.batch_processing import batch_processing
 from autoeq.constants import DEFAULT_MAX_GAIN, DEFAULT_TREBLE_F_LOWER, DEFAULT_TREBLE_F_UPPER, DEFAULT_TREBLE_GAIN_K, \
     DEFAULT_BIT_DEPTH, DEFAULT_F_RES, DEFAULT_BASS_BOOST_GAIN, DEFAULT_BASS_BOOST_FC, DEFAULT_BASS_BOOST_Q, \
     DEFAULT_SMOOTHING_WINDOW_SIZE, DEFAULT_TREBLE_SMOOTHING_WINDOW_SIZE, PEQ_CONFIGS