diff --git a/.builds/build.yml b/.builds/build.yml
index 9db1934..9543245 100644
--- a/.builds/build.yml
+++ b/.builds/build.yml
@@ -24,7 +24,7 @@ tasks:
       echo "source $(poetry env info -p)/bin/activate" >> ~/.buildenv
 
   - lint: |
-      python setup.py check -mrs
+      poetry check
       black --check .
       flake8
       mypy sublime_music tests/**/*.py
@@ -36,7 +36,7 @@ tasks:
       pytest
 
   - build: |
-      python setup.py sdist
+      poetry build
 
   # TODO migrate deploy to sr.ht
   # - deploy-pypi: |
diff --git a/.envrc b/.envrc
index 446206f..6b02752 100644
--- a/.envrc
+++ b/.envrc
@@ -11,7 +11,6 @@ source .venv/bin/activate
 
 watch_file pyproject.toml
 watch_file poetry.lock
-watch_file setup.py
 watch_file shell.nix
 
 unset PS1
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 7182f0e..ace5f99 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -22,7 +22,7 @@ lint:
   before_script:
     - ./cicd/install-project-deps.sh
   script:
-    - poetry run python setup.py check -mrs
+    - poetry check
     - poetry run black --check .
     - poetry run flake8
     - poetry run mypy sublime_music tests/**/*.py
@@ -47,7 +47,7 @@ build:
   before_script:
     - ./cicd/install-project-deps.sh
   script:
-    - poetry run python setup.py sdist
+    - poetry build
   artifacts:
     paths:
       - dist/*
diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 75f8838..010dca7 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -1,3 +1,12 @@
+v0.11.11-devel
+==============
+
+**Infrastructure**
+
+* Convert entirely over to ``poetry`` from ``setuptools`` for building.
+* Add a custom check to ensure that the version in ``pyproject.toml`` matches
+  with the other instances of the version.
+
 v0.11.10
 ========
 
diff --git a/cicd/custom_style_check.py b/cicd/custom_style_check.py
index 81deb49..3e50aad 100755
--- a/cicd/custom_style_check.py
+++ b/cicd/custom_style_check.py
@@ -61,9 +61,19 @@ with open(Path("sublime_music/__init__.py")) as f:
         if line.startswith("__version__"):
             version = eval(line.split()[-1])
             break
+    else:  # nobreak
+        raise AssertionError("No version in sublime_music/__init__.py")
+
+with open(Path("pyproject.toml")) as f:
+    for line in f:
+        if line.startswith("version ="):
+            assert eval(line.split()[-1]) == version, "Version mismatch: pyproject.toml"
+            break
+    else:  # nobreak
+        raise AssertionError("No version in pyproject.toml")
 
 with open(Path("CHANGELOG.rst")) as f:
-    assert f.readline().strip() == f"v{version}", "Version mismatch"
+    assert f.readline().strip() == f"v{version}", "Version mismatch: CHANGELOG"
 
 
 sys.exit(0 if valid else 1)
diff --git a/pyproject.toml b/pyproject.toml
index ba33dcd..452bc81 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,28 +1,32 @@
 [tool.poetry]
 name = "sublime_music"
-version = "0.11.10"
+version = "0.11.11-devel"
 description = "A native GTK *sonic client."
 license = "GPL-3.0-or-later"
 authors = ["Sumner Evans <inquiries@sumnerevans.com>"]
 readme = "README.rst"
 homepage = "https://sublimemusic.app"
-repository = "https://sr.ht/~sumner/sublime-music"
-documentation = "https://sublime-music.gitlab.io/sublime-music/"
-keywords = ["airsonic", "music", "chromecast", "subsonic"]
+repository = "https://gitlab.com/sublime-music/sublime-music"
+documentation = "https://sublime-music.gitlab.io/sublime-music"
+keywords = ["airsonic", "music", "GTK", "chromecast", "subsonic"]
 classifiers = [
     #   3 - Alpha
     #   4 - Beta
     #   5 - Production/Stable
-    "Development Status :: 3 - Alpha",
+    "Development Status :: 4 - Beta",
+    "Environment :: X11 Applications :: GTK",
     "Intended Audience :: End Users/Desktop",
     "Operating System :: POSIX",
+    "Topic :: Multimedia :: Sound/Audio :: Players",
 ]
 
-# TODO
-exclude = ["tests"]
+exclude = [
+    "tests",
+    "sublime_music/adapters/subsonic/api_specs"
+]
 
 [tool.poetry.urls]
-"Bug Tracker" = "https://todo.sr.ht/~sumner/sublime-music"
+"Bug Tracker" = "https://gitlab.com/sublime-music/sublime-music/-/issues"
 
 [tool.poetry.scripts]
 sublime-music = 'sublime_music.__main__:main'
@@ -30,19 +34,19 @@ sublime-music = 'sublime_music.__main__:main'
 [tool.poetry.dependencies]
 python = "^3.8"
 bleach = "^3.2.1"
+bottle = {version = "^0.12.18", optional = true}
 dataclasses-json = "^0.5.2"
 deepdiff = "^5.0.2"
 fuzzywuzzy = "^0.18.0"
+keyring = {version = "^21.4.0", optional = true}
 peewee = "^3.13.3"
+pychromecast = {version = "^7.3.0", optional = true}
 PyGObject = "^3.38.0"
 python-dateutil = "^2.8.1"
 python-Levenshtein = "^0.12.0"
 python-mpv = "^0.5.2"
 requests = "^2.24.0"
 semver = "^2.10.2"
-bottle = {version = "^0.12.18", optional = true}
-keyring = {version = "^21.4.0", optional = true}
-pychromecast = {version = "^7.3.0", optional = true}
 
 [tool.poetry.dev-dependencies]
 black = "^20.8b1"
@@ -56,11 +60,11 @@ flake8-pep3101 = "^1.3.0"
 flake8-print = "^3.1.4"
 mypy = "^0.782"
 pytest-cov = "^2.10.1"
-termcolor = "^1.1.0"
 requirements-parser = "^0.2.0"
+rst2html5 = "^1.10.6"
 sphinx = "^3.2.1"
 sphinx_rtd_theme = "^0.5.0"
-rst2html5 = "^1.10.6"
+termcolor = "^1.1.0"
 
 [tool.poetry.extras]
 chromecast = ["pychromecast"]
diff --git a/setup.py b/setup.py
deleted file mode 100644
index 2fcbdee..0000000
--- a/setup.py
+++ /dev/null
@@ -1,79 +0,0 @@
-from pathlib import Path
-
-from setuptools import find_packages, setup
-
-here = Path(__file__).parent.resolve()
-
-with open(here.joinpath("README.rst"), encoding="utf-8") as f:
-    long_description = f.read()
-
-# Find the version
-with open(here.joinpath("sublime_music", "__init__.py")) as f:
-    for line in f:
-        if line.startswith("__version__"):
-            version = eval(line.split()[-1])
-            break
-
-package_data_dirs = [
-    here.joinpath("sublime_music", "adapters", "icons"),
-    here.joinpath("sublime_music", "adapters", "images"),
-    here.joinpath("sublime_music", "adapters", "subsonic", "icons"),
-    here.joinpath("sublime_music", "dbus", "mpris_specs"),
-    here.joinpath("sublime_music", "ui", "icons"),
-    here.joinpath("sublime_music", "ui", "images"),
-]
-package_data_files = []
-for data_dir in package_data_dirs:
-    for file in data_dir.iterdir():
-        package_data_files.append(str(file))
-
-setup(
-    name="sublime_music",
-    version=version,
-    url="https://gitlab.com/sublime-music/sublime-music",
-    description="A native GTK *sonic client.",
-    long_description=long_description,
-    author="Sumner Evans",
-    author_email="inquiries@sumnerevans.com",
-    license="GPL3",
-    classifiers=[
-        #   3 - Alpha
-        #   4 - Beta
-        #   5 - Production/Stable
-        "Development Status :: 3 - Alpha",
-        # Indicate who your project is intended for
-        "Intended Audience :: End Users/Desktop",
-        "Operating System :: POSIX",
-        "License :: OSI Approved :: GNU General Public License v3 (GPLv3)",
-        # Specify the Python versions you support here. In particular, ensure
-        # that you indicate whether you support Python 2, Python 3 or both.
-        "Programming Language :: Python :: 3.8",
-    ],
-    keywords="airsonic subsonic libresonic gonic music",
-    packages=find_packages(exclude=["tests"]),
-    package_data={"sublime_music": ["ui/app_styles.css", *package_data_files]},
-    install_requires=[
-        "bleach",
-        "dataclasses-json",
-        "deepdiff",
-        "fuzzywuzzy",
-        'osxmmkeys ; sys_platform=="darwin"',
-        "peewee",
-        "PyGObject",
-        "python-dateutil",
-        "python-Levenshtein",
-        "python-mpv",
-        "requests",
-        "semver",
-    ],
-    extras_require={
-        "keyring": ["keyring"],
-        "chromecast": ["pychromecast"],
-        "server": ["bottle"],
-    },
-    # To provide executable scripts, use entry points in preference to the
-    # "scripts" keyword. Entry points provide cross-platform support and
-    # allow pip to create the appropriate form of executable for the target
-    # platform.
-    entry_points={"console_scripts": ["sublime-music=sublime_music.__main__:main"]},
-)
diff --git a/sublime_music/__init__.py b/sublime_music/__init__.py
index c9f772e..d74a5db 100644
--- a/sublime_music/__init__.py
+++ b/sublime_music/__init__.py
@@ -1 +1 @@
-__version__ = "0.11.10"
+__version__ = "0.11.11-devel"