diff --git a/.gitignore b/.gitignore
index 69bf918..5169b4b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,4 +2,5 @@
 venv/
 .hypothesis/
 .mutmut-cache
-NewLang.pyz
+dist/
+src/NewLang.egg-info/
diff --git a/Jenkinsfile b/Jenkinsfile
index 42dc97f..c53b688 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -16,8 +16,8 @@
                         sh "python ./build.py"
                         echo "Testing for Linux"
                         sh ". ./env.sh; dobuild && domut_ci && dotest_ci"
-                        sh "mv NewLang.pyz NewLang.linux.pyz"
-                        archiveArtifacts artifacts: 'NewLang.linux.pyz', fingerprint: true
+                        sh "mv dist dist.linux"
+                        archiveArtifacts artifacts: 'dist.linux', fingerprint: true
                         cleanWs cleanWhenAborted: false, cleanWhenFailure: false, cleanWhenNotBuilt: false, cleanWhenUnstable: false
                     }
                 }
@@ -30,8 +30,8 @@
                         pwsh "python .\\build.py"
                         echo "Testing for Windows"
                         pwsh ".\\env.ps1; dobuild; domut_ci; dotest_ci"
-                        pwsh "mv NewLang.pyz NewLang.windows.pyz"
-                        archiveArtifacts artifacts: 'NewLang.windows.pyz', fingerprint: true
+                        pwsh "mv dist dist.windows"
+                        archiveArtifacts artifacts: 'dist.windows', fingerprint: true
                         cleanWs cleanWhenAborted: false, cleanWhenFailure: false, cleanWhenNotBuilt: false, cleanWhenUnstable: false
                     }
                 }
diff --git a/build.py b/build.py
deleted file mode 100644
index a04a5c1..0000000
--- a/build.py
+++ /dev/null
@@ -1,101 +0,0 @@
-# SPDX-License-Identifier: LGPL-2.1
-# Copyright 2022 Jookia <contact@jookia.org>
-
-import pathlib
-import zipfile
-
-
-def reproducible_date():
-    return (2000, 1, 1, 1, 1, 1)
-
-
-def open_new_file(path):
-    path.unlink(missing_ok=True)
-    file = path.open("xb")
-    mode = path.stat().st_mode
-    new_mode = mode | 0o100  # Executable
-    path.chmod(new_mode)
-    return file
-
-
-def write_shebang(file):
-    shebang = "#!/usr/bin/env python3\n"
-    file.write(shebang.encode("utf-8"))
-
-
-def open_zip(file):
-    return zipfile.ZipFile(
-        file, mode="a", compression=zipfile.ZIP_DEFLATED, compresslevel=9
-    )
-
-
-def close_zip(zip):
-    zip.close()
-
-
-def close_file(file):
-    file.close()
-
-
-def find_all_src(srcpath):
-    paths = srcpath.rglob("*")
-    new_paths = [srcpath]
-    for p in paths:
-        if "__pycache__" in p.as_posix():
-            continue
-        if p.name[0] == ".":
-            continue
-        new_paths.append(p)
-    return new_paths
-
-
-def write_zip_entry(zip, name, data, date):
-    info = zipfile.ZipInfo(filename=name, date_time=date)
-    info.create_system = 3  # UNIX
-    zip.writestr(info, data, compress_type=zipfile.ZIP_DEFLATED, compresslevel=9)
-
-
-def write_main(zip, date):
-    name = "__main__.py"
-    data = "import newlang.main\nnewlang.main.wait_main(None)"
-    write_zip_entry(zip, name, data, date)
-
-
-def write_dir(zip, path, name, date):
-    # For some reason Python needs empty files with the names of directories ending in /
-    name = name + "/"
-    data = ""
-    write_zip_entry(zip, name, data, date)
-
-
-def write_file(zip, path, name, date):
-    file = path.open("rb")
-    data = file.read()
-    new_data = data.replace(b"\r\n", b"\n")
-    file.close()
-    write_zip_entry(zip, name, new_data, date)
-
-
-def write_src(zip, date):
-    srcs = sorted(find_all_src(pathlib.Path("src/newlang")))
-    for p in srcs:
-        name = p.relative_to("src").as_posix()
-        if p.is_dir():
-            write_dir(zip, p, name, date)
-        else:
-            write_file(zip, p, name, date)
-
-
-def main():
-    date = reproducible_date()
-    file = open_new_file(pathlib.Path("NewLang.pyz"))
-    write_shebang(file)
-    zip = open_zip(file)
-    write_src(zip, date)
-    write_main(zip, date)
-    close_zip(zip)
-    close_file(file)
-
-
-if __name__ == "__main__":
-    main()
diff --git a/env.ps1 b/env.ps1
index d77d1a7..836f13c 100644
--- a/env.ps1
+++ b/env.ps1
@@ -37,8 +37,8 @@
 # See https://github.com/PowerShell/PowerShell/issues/12218
 
 Function Global:resetenv { rm -r venv; .\env.ps1 }
-Function Global:dotidy { black src tests build.py }
-Function Global:dolint { flake8 src tests build.py }
+Function Global:dotidy { black src tests }
+Function Global:dolint { flake8 src tests }
 Function Global:dotest { pytest -q -n auto -x -l --sw --hypothesis-profile=dev $args }
 Function Global:dotest_dev { pytest -vv -n 0 -x -l --sw --hypothesis-profile=dev $args }
 Function Global:dotest_ci { pytest -q -n auto --hypothesis-profile=ci }
@@ -47,4 +47,4 @@
 Function Global:_envps1_domut { mutmut run --paths-to-mutate "src/parse2,src/i18n.py" $args }
 Function Global:domut { _envps1_domut }
 Function Global:domut_ci { _envps1_domut --no-progress || mutmut results }
-Function Global:dobuild { python build.py }
+Function Global:dobuild { python -m build }
diff --git a/env.sh b/env.sh
index 82cbf79..c622292 100644
--- a/env.sh
+++ b/env.sh
@@ -28,8 +28,8 @@
 unset -f activate die setup
 
 resetenv() { rm -r venv; . ./env.sh; }
-dotidy() { black src tests build.py; }
-dolint() { flake8 src tests build.py; }
+dotidy() { black src tests; }
+dolint() { flake8 src tests; }
 dotest() { pytest -q -n auto -x -l --sw --hypothesis-profile=dev $@; }
 dotest_dev() { pytest -vv -n 0 -x -l --sw --hypothesis-profile=dev $@; }
 dotest_ci() { pytest -q -n auto --hypothesis-profile=ci; }
@@ -38,4 +38,4 @@
 _envsh_domut() { mutmut run --paths-to-mutate "src/parse2,src/i18n.py" $@; }
 domut() { _envsh_domut; }
 domut_ci() { _envsh_domut --no-progress || (mutmut results; exit 1); }
-dobuild() { python build.py; }
+dobuild() { python -m build; }
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..ffbb977
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,16 @@
+[project]
+name = "NewLang"
+version = "0.0.0"
+description = "A simple programming language"
+readme = "README.md"
+license = {text = "LGPL-2.1-only"}
+
+[project.urls]
+homepage = "https://git.lumina-sensum.com/LuminaSensum/NewLang"
+
+[project.scripts]
+newlang = "newlang:__main__"
+
+[build-system]
+requires = ["setuptools"]
+build-backend = "setuptools.build_meta"
diff --git a/requirements.txt b/requirements.txt
index 56b26bb..0e684ac 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,4 @@
+build
 black
 pytest
 pytest-randomly