diff --git a/Dockerfile.nixified b/Dockerfile.nixified
new file mode 100644
index 0000000..be6d86a
--- /dev/null
+++ b/Dockerfile.nixified
@@ -0,0 +1,24 @@
+# syntax = docker/dockerfile:1.2
+FROM nixos/nix
+
+ENV PYTHONUNBUFFERED 1
+RUN nix-channel --add https://nixos.org/channels/nixpkgs-unstable nixpkgs && \
+    nix-channel --update
+
+WORKDIR /code
+
+RUN wget https://github.com/vishnubob/wait-for-it/raw/8ed92e8cab83cfed76ff012ed4a36cef74b28096/wait-for-it.sh -O /usr/local/bin/wait-for-it && chmod +x /usr/local/bin/wait-for-it
+
+RUN nix-env -iA nixpkgs.git nixpkgs.bash
+
+ADD ./pyproject.toml .
+ADD ./poetry.lock .
+ADD ./*.nix .
+ADD ./nix ./nix
+
+RUN nix-shell
+
+ADD . .
+RUN nix-build
+
+CMD bash -c "nix-build && result/bin/managePy migrate && result/bin/managePy createsuperuser && result/bin/managePy runserver 0.0.0.0:8000"
diff --git a/common-deps.nix b/common-deps.nix
index c2aa506..5324f2e 100644
--- a/common-deps.nix
+++ b/common-deps.nix
@@ -1,6 +1,6 @@
 { sources ? import ./nix/sources.nix, pkgs ? import sources.nixpkgs {} }:
 with pkgs;
 [
-  python38
+  git
   postgresql
 ]
diff --git a/default.nix b/default.nix
new file mode 100644
index 0000000..1ea300c
--- /dev/null
+++ b/default.nix
@@ -0,0 +1,20 @@
+{ sources ? import ./nix/sources.nix
+, poetry2nix-olay ? import
+    # ../poetry2nix/overlay.nix
+    "${sources.poetry2nix}/overlay.nix"
+, nixpkgs ? sources.nixpkgs
+}:
+let
+  common-deps = import ./common-deps.nix { inherit sources; };
+  pkgs = import nixpkgs { overlays = [ poetry2nix-olay ]; };
+  src = ./.;
+  poetry-app = pkgs.poetry2nix.mkPoetryApplication {
+    projectDir = src;
+  };
+  dep-env = poetry-app.dependencyEnv;
+  managePy = pkgs.writeScriptBin "managePy" ''
+    cd ${src}
+    ${dep-env}/bin/python manage.py $@
+  '';
+in
+managePy
diff --git a/docker-compose.yml b/docker-compose.yml
index cf9e81f..8e32ce0 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -7,7 +7,9 @@ services:
      - POSTGRES_HOST_AUTH_METHOD=trust
 
   web:
-    build: .
+    build:
+      context: .
+      dockerfile: Dockerfile.nixified
     restart: always
     volumes:
       - .:/code
diff --git a/nix/poetry2nix-olay.nix b/nix/poetry2nix-olay.nix
new file mode 100644
index 0000000..55f39c2
--- /dev/null
+++ b/nix/poetry2nix-olay.nix
@@ -0,0 +1,18 @@
+self: super: {
+
+  # p2self & p2super refers to poetry2nix
+  poetry2nix = super.poetry2nix.overrideScope' (
+    p2nixself: p2nixsuper: {
+
+      # pyself & pysuper refers to python packages
+      defaultPoetryOverrides = p2nixsuper.defaultPoetryOverrides.extend (
+        pyself: pysuper: {
+
+          my-custom-pkg = super.my-custom-pkg.overridePythonAttrs (oldAttrs: {});
+
+        }
+      );
+
+    }
+  );
+}
diff --git a/nix/sources.json b/nix/sources.json
index 36c5897..bec53be 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -12,15 +12,27 @@
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "nixpkgs": {
-        "branch": "release-20.09",
+        "branch": "nixpkgs-unstable",
         "description": "Nix Packages collection",
         "homepage": "",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "d303eee16ce8dee5c0b5b8e5f6323f561c189ec5",
-        "sha256": "05hna2a2zss5rfbsbxah4z159yvyyarw5w5hqwnbs020h02j2ywh",
+        "rev": "870dbb751f4d851a3dfb554835a0c2f528386982",
+        "sha256": "0ydgjvwspfspm0fg7jhc5yxpm47lh4scqhwswranm82hk668cxzl",
         "type": "tarball",
-        "url": "https://github.com/NixOS/nixpkgs/archive/d303eee16ce8dee5c0b5b8e5f6323f561c189ec5.tar.gz",
+        "url": "https://github.com/NixOS/nixpkgs/archive/870dbb751f4d851a3dfb554835a0c2f528386982.tar.gz",
+        "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
+    },
+    "poetry2nix": {
+        "branch": "master",
+        "description": "Convert poetry projects to nix automagically [maintainer=@adisbladis] ",
+        "homepage": "",
+        "owner": "nix-community",
+        "repo": "poetry2nix",
+        "rev": "c6f356183361493bc556138eca452878b651b90c",
+        "sha256": "18zqhwbl0r064xhga9hcwxji7j7xivksdlkl2i8avvzzash715a2",
+        "type": "tarball",
+        "url": "https://github.com/nix-community/poetry2nix/archive/c6f356183361493bc556138eca452878b651b90c.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     }
 }
diff --git a/poetry.lock b/poetry.lock
index 72900a4..f320dfd 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1,65 +1,64 @@
 [[package]]
-category = "main"
-description = "Python package for providing Mozilla's CA Bundle."
 name = "certifi"
+version = "2019.11.28"
+description = "Python package for providing Mozilla's CA Bundle."
+category = "main"
 optional = false
 python-versions = "*"
-version = "2019.11.28"
 
 [[package]]
-category = "main"
-description = "Foreign Function Interface for Python calling C code."
 name = "cffi"
+version = "1.14.5"
+description = "Foreign Function Interface for Python calling C code."
+category = "main"
 optional = false
 python-versions = "*"
-version = "1.14.5"
 
 [package.dependencies]
 pycparser = "*"
 
 [[package]]
-category = "main"
-description = "Universal encoding detector for Python 2 and 3"
 name = "chardet"
+version = "3.0.4"
+description = "Universal encoding detector for Python 2 and 3"
+category = "main"
 optional = false
 python-versions = "*"
-version = "3.0.4"
 
 [[package]]
-category = "main"
-description = "cryptography is a package which provides cryptographic recipes and primitives to Python developers."
 name = "cryptography"
+version = "3.4.6"
+description = "cryptography is a package which provides cryptographic recipes and primitives to Python developers."
+category = "main"
 optional = false
 python-versions = ">=3.6"
-version = "3.4.6"
 
 [package.dependencies]
 cffi = ">=1.12"
 
 [package.extras]
-docs = ["sphinx (>=1.6.5,<1.8.0 || >1.8.0,<3.1.0 || >3.1.0,<3.1.1 || >3.1.1)", "sphinx-rtd-theme"]
+docs = ["sphinx (>=1.6.5,!=1.8.0,!=3.1.0,!=3.1.1)", "sphinx-rtd-theme"]
 docstest = ["doc8", "pyenchant (>=1.6.11)", "twine (>=1.12.0)", "sphinxcontrib-spelling (>=4.0.1)"]
 pep8test = ["black", "flake8", "flake8-import-order", "pep8-naming"]
 sdist = ["setuptools-rust (>=0.11.4)"]
 ssh = ["bcrypt (>=3.1.5)"]
-test = ["pytest (>=6.0)", "pytest-cov", "pytest-subtests", "pytest-xdist", "pretend", "iso8601", "pytz", "hypothesis (>=1.11.4,<3.79.2 || >3.79.2)"]
+test = ["pytest (>=6.0)", "pytest-cov", "pytest-subtests", "pytest-xdist", "pretend", "iso8601", "pytz", "hypothesis (>=1.11.4,!=3.79.2)"]
 
 [[package]]
-category = "main"
-description = "XML bomb protection for Python stdlib modules"
-marker = "python_version >= \"3.0\""
 name = "defusedxml"
+version = "0.7.0rc2"
+description = "XML bomb protection for Python stdlib modules"
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "0.7.0rc2"
 
 [[package]]
-category = "main"
-description = "A high-level Python Web framework that encourages rapid development and clean, pragmatic design."
 name = "django"
+version = "1.11.28"
+description = "A high-level Python Web framework that encourages rapid development and clean, pragmatic design."
+category = "main"
 optional = false
 python-versions = "*"
-version = "1.11.28"
 
 [package.dependencies]
 pytz = "*"
@@ -69,92 +68,107 @@ argon2 = ["argon2-cffi (>=16.1.0)"]
 bcrypt = ["bcrypt"]
 
 [[package]]
-category = "main"
-description = "A helper class for handling configuration defaults of packaged apps gracefully."
 name = "django-appconf"
+version = "1.0.3"
+description = "A helper class for handling configuration defaults of packaged apps gracefully."
+category = "main"
 optional = false
 python-versions = "*"
-version = "1.0.3"
 
 [package.dependencies]
 django = "*"
 six = "*"
 
 [[package]]
-category = "main"
-description = "An extension for Django admin that makes interface mobile friendly."
 name = "django-flat-responsive"
+version = "2.0"
+description = "An extension for Django admin that makes interface mobile friendly."
+category = "main"
 optional = false
 python-versions = "*"
-version = "2.0"
 
 [[package]]
-category = "main"
-description = "PostgreSQL HStore support for Django"
 name = "django-hstore"
+version = "1.5a0"
+description = "PostgreSQL HStore support for Django"
+category = "main"
 optional = false
 python-versions = "*"
-version = "1.5.alpha"
+develop = false
 
 [package.source]
-reference = "61427e474cb2f4be8fdfce225d78a5330bc77eb0"
 type = "git"
 url = "https://github.com/djangonauts/django-hstore.git"
+reference = "61427e474cb2f4be8fdfce225d78a5330bc77eb0"
+resolved_reference = "61427e474cb2f4be8fdfce225d78a5330bc77eb0"
+
 [[package]]
-category = "main"
-description = "This is a simple app, which supplies a single template tag for markdown markup."
 name = "django-markdown2"
+version = "0.3.1"
+description = "This is a simple app, which supplies a single template tag for markdown markup."
+category = "main"
 optional = false
 python-versions = "*"
-version = "0.3.1"
 
 [package.dependencies]
 markdown2 = "*"
 
 [[package]]
-category = "main"
-description = "Select2 option fields for Django."
 name = "django-select2"
+version = "6.3.1-pbr-devdep"
+description = "Select2 option fields for Django."
+category = "main"
 optional = false
 python-versions = "*"
-version = "6.3.1"
+develop = false
 
 [package.dependencies]
 django-appconf = ">=0.6.0"
+pbr = "*"
+pytest-runner = "*"
+
+[package.source]
+type = "git"
+url = "https://github.com/drozdziak1/django-select2.git"
+reference = "038a763d9caab00be2d583675edf8a87618af5c7"
+resolved_reference = "038a763d9caab00be2d583675edf8a87618af5c7"
 
 [[package]]
-category = "main"
-description = "Fast and easy tree structures."
 name = "django-tree"
+version = "0.1.0"
+description = "Fast and easy tree structures."
+category = "main"
 optional = false
 python-versions = "*"
-version = "0.1.0"
+develop = false
 
 [package.dependencies]
 Django = ">=1.8,<1.12"
 
 [package.source]
-reference = "687c01c02d91cada9ca1912e34e482da9e73e27a"
 type = "git"
 url = "https://github.com/d42/django-tree.git"
+reference = "687c01c02d91cada9ca1912e34e482da9e73e27a"
+resolved_reference = "687c01c02d91cada9ca1912e34e482da9e73e27a"
+
 [[package]]
-category = "main"
-description = "Web APIs for Django, made easy."
 name = "djangorestframework"
+version = "3.11.0"
+description = "Web APIs for Django, made easy."
+category = "main"
 optional = false
 python-versions = ">=3.5"
-version = "3.11.0"
 
 [package.dependencies]
 django = ">=1.11"
 
 [[package]]
-category = "main"
-description = "Django Rest Framework tools for django-hstore"
 name = "djangorestframework-hstore"
+version = "1.3"
+description = "Django Rest Framework tools for django-hstore"
+category = "main"
 optional = false
 python-versions = "*"
-version = "1.3"
 
 [package.dependencies]
 Django = ">=1.6.11"
@@ -163,28 +177,28 @@ djangorestframework = ">=3.1.1"
 psycopg2 = ">=2.4.3"
 
 [[package]]
-category = "main"
-description = "Internationalized Domain Names in Applications (IDNA)"
 name = "idna"
+version = "2.8"
+description = "Internationalized Domain Names in Applications (IDNA)"
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "2.8"
 
 [[package]]
-category = "main"
-description = "A fast and complete Python implementation of Markdown"
 name = "markdown2"
+version = "2.4.0"
+description = "A fast and complete Python implementation of Markdown"
+category = "main"
 optional = false
 python-versions = ">=3.5, <4"
-version = "2.4.0"
 
 [[package]]
-category = "main"
-description = "A generic, spec-compliant, thorough implementation of the OAuth request-signing logic"
 name = "oauthlib"
+version = "3.1.0"
+description = "A generic, spec-compliant, thorough implementation of the OAuth request-signing logic"
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "3.1.0"
 
 [package.extras]
 rsa = ["cryptography"]
@@ -192,51 +206,70 @@ signals = ["blinker"]
 signedtoken = ["cryptography", "pyjwt (>=1.0.0)"]
 
 [[package]]
+name = "pbr"
+version = "5.5.1"
+description = "Python Build Reasonableness"
 category = "main"
-description = "Python Imaging Library (Fork)"
+optional = false
+python-versions = ">=2.6"
+
+[[package]]
 name = "pillow"
+version = "6.2.1"
+description = "Python Imaging Library (Fork)"
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "6.2.1"
 
 [[package]]
-category = "main"
-description = "psycopg2 - Python-PostgreSQL Database Adapter"
 name = "psycopg2"
+version = "2.8.4"
+description = "psycopg2 - Python-PostgreSQL Database Adapter"
+category = "main"
 optional = false
 python-versions = ">=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*"
-version = "2.8.4"
 
 [[package]]
-category = "main"
-description = "C parser in Python"
 name = "pycparser"
+version = "2.20"
+description = "C parser in Python"
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "2.20"
 
 [[package]]
-category = "main"
-description = "JSON Web Token implementation in Python"
 name = "pyjwt"
+version = "2.0.1"
+description = "JSON Web Token implementation in Python"
+category = "main"
 optional = false
 python-versions = ">=3.6"
-version = "2.0.1"
 
 [package.extras]
 crypto = ["cryptography (>=3.3.1,<4.0.0)"]
-dev = ["sphinx", "sphinx-rtd-theme", "zope.interface", "cryptography (>=3.3.1,<4.0.0)", "pytest (>=6.0.0,<7.0.0)", "coverage (5.0.4)", "mypy", "pre-commit"]
+dev = ["sphinx", "sphinx-rtd-theme", "zope.interface", "cryptography (>=3.3.1,<4.0.0)", "pytest (>=6.0.0,<7.0.0)", "coverage[toml] (==5.0.4)", "mypy", "pre-commit"]
 docs = ["sphinx", "sphinx-rtd-theme", "zope.interface"]
-tests = ["pytest (>=6.0.0,<7.0.0)", "coverage (5.0.4)"]
+tests = ["pytest (>=6.0.0,<7.0.0)", "coverage[toml] (==5.0.4)"]
 
 [[package]]
+name = "pytest-runner"
+version = "5.3.0"
+description = "Invoke py.test as distutils command with dependency resolution"
 category = "main"
-description = "OpenID support for modern servers and consumers."
-marker = "python_version >= \"3.0\""
+optional = false
+python-versions = ">=3.6"
+
+[package.extras]
+docs = ["sphinx", "jaraco.packaging (>=8.2)", "rst.linker (>=1.9)"]
+testing = ["pytest (>=3.5,!=3.7.3)", "pytest-checkdocs (>=1.2.3)", "pytest-flake8", "pytest-cov", "pytest-enabler", "pytest-virtualenv", "pytest-black (>=0.3.7)", "pytest-mypy"]
+
+[[package]]
 name = "python3-openid"
+version = "3.2.0"
+description = "OpenID support for modern servers and consumers."
+category = "main"
 optional = false
 python-versions = "*"
-version = "3.2.0"
 
 [package.dependencies]
 defusedxml = "*"
@@ -246,20 +279,20 @@ mysql = ["mysql-connector-python"]
 postgresql = ["psycopg2"]
 
 [[package]]
-category = "main"
-description = "World timezone definitions, modern and historical"
 name = "pytz"
+version = "2021.1"
+description = "World timezone definitions, modern and historical"
+category = "main"
 optional = false
 python-versions = "*"
-version = "2021.1"
 
 [[package]]
-category = "main"
-description = "Python HTTP for Humans."
 name = "requests"
+version = "2.22.0"
+description = "Python HTTP for Humans."
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "2.22.0"
 
 [package.dependencies]
 certifi = ">=2017.4.17"
@@ -269,66 +302,60 @@ urllib3 = ">=1.21.1,<1.25.0 || >1.25.0,<1.25.1 || >1.25.1,<1.26"
 
 [package.extras]
 security = ["pyOpenSSL (>=0.14)", "cryptography (>=1.3.4)", "idna (>=2.0.0)"]
-socks = ["PySocks (>=1.5.6,<1.5.7 || >1.5.7)", "win-inet-pton"]
+socks = ["PySocks (>=1.5.6,!=1.5.7)", "win-inet-pton"]
 
 [[package]]
-category = "main"
-description = "OAuthlib authentication support for Requests."
 name = "requests-oauthlib"
+version = "1.3.0"
+description = "OAuthlib authentication support for Requests."
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "1.3.0"
 
 [package.dependencies]
 oauthlib = ">=3.0.0"
 requests = ">=2.0.0"
 
 [package.extras]
-rsa = ["oauthlib (>=3.0.0)"]
+rsa = ["oauthlib[signedtoken] (>=3.0.0)"]
 
 [[package]]
-category = "main"
-description = "Python 2 and 3 compatibility utilities"
 name = "six"
+version = "1.15.0"
+description = "Python 2 and 3 compatibility utilities"
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*"
-version = "1.15.0"
 
 [[package]]
-category = "main"
-description = "Python Social Authentication, Django integration."
 name = "social-auth-app-django"
+version = "3.1.0"
+description = "Python Social Authentication, Django integration."
+category = "main"
 optional = false
 python-versions = "*"
-version = "3.1.0"
 
 [package.dependencies]
 six = "*"
 social-auth-core = ">=1.2.0"
 
 [[package]]
-category = "main"
-description = "Python social authentication made simple."
 name = "social-auth-core"
+version = "4.0.3"
+description = "Python social authentication made simple."
+category = "main"
 optional = false
 python-versions = "*"
-version = "4.0.3"
 
 [package.dependencies]
-PyJWT = ">=2.0.0"
 cryptography = ">=1.4"
+defusedxml = {version = ">=0.5.0rc1", markers = "python_version >= \"3.0\""}
 oauthlib = ">=1.0.3"
+PyJWT = ">=2.0.0"
+python3-openid = {version = ">=3.0.10", markers = "python_version >= \"3.0\""}
 requests = ">=2.9.1"
 requests-oauthlib = ">=0.6.1"
 
-[package.dependencies.defusedxml]
-python = ">=3.0"
-version = ">=0.5.0rc1"
-
-[package.dependencies.python3-openid]
-python = ">=3.0"
-version = ">=3.0.10"
-
 [package.extras]
 all = ["python-jose (>=3.0.0)", "pyjwt (>=1.7.1)", "python3-saml (>=1.2.1)", "cryptography (>=2.1.1)"]
 allpy3 = ["python-jose (>=3.0.0)", "pyjwt (>=1.7.1)", "python3-saml (>=1.2.1)", "cryptography (>=2.1.1)", "defusedxml (>=0.5.0rc1)", "python3-openid (>=3.0.10)"]
@@ -337,22 +364,22 @@ openidconnect = ["python-jose (>=3.0.0)", "pyjwt (>=1.7.1)"]
 saml = ["python3-saml (>=1.2.1)"]
 
 [[package]]
-category = "main"
-description = "HTTP library with thread-safe connection pooling, file post, and more."
 name = "urllib3"
+version = "1.25.8"
+description = "HTTP library with thread-safe connection pooling, file post, and more."
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, <4"
-version = "1.25.8"
 
 [package.extras]
 brotli = ["brotlipy (>=0.6.0)"]
 secure = ["pyOpenSSL (>=0.14)", "cryptography (>=1.3.4)", "idna (>=2.0.0)", "certifi", "ipaddress"]
-socks = ["PySocks (>=1.5.6,<1.5.7 || >1.5.7,<2.0)"]
+socks = ["PySocks (>=1.5.6,!=1.5.7,<2.0)"]
 
 [metadata]
-content-hash = "62c7a654e3779d3ff79c8abf6d08a81b399a5f083eb64f6634525929b01316b2"
-lock-version = "1.0"
+lock-version = "1.1"
 python-versions = "^3.8"
+content-hash = "e96da617856b34f16f3f486aece93c33e4781e5900bc685976681848d55b1dd3"
 
 [metadata.files]
 certifi = [
@@ -435,10 +462,7 @@ django-hstore = []
 django-markdown2 = [
     {file = "django-markdown2-0.3.1.tar.gz", hash = "sha256:f04748d56788f6291d8d35f0e53a58530e1c0b34981b046883b319b64c8117e2"},
 ]
-django-select2 = [
-    {file = "django-select2-6.3.1.tar.gz", hash = "sha256:f93b5b626e5c0e8ced24e1e31027eb4850649216e4132cdc3f3880c0bed241c9"},
-    {file = "django_select2-6.3.1-py3-none-any.whl", hash = "sha256:7e5a3da54332cb94174a91e0a03177ce44c152049b0876424ba81fc805dbb89f"},
-]
+django-select2 = []
 django-tree = []
 djangorestframework = [
     {file = "djangorestframework-3.11.0-py3-none-any.whl", hash = "sha256:05809fc66e1c997fd9a32ea5730d9f4ba28b109b9da71fccfa5ff241201fd0a4"},
@@ -460,6 +484,10 @@ oauthlib = [
     {file = "oauthlib-3.1.0-py2.py3-none-any.whl", hash = "sha256:df884cd6cbe20e32633f1db1072e9356f53638e4361bef4e8b03c9127c9328ea"},
     {file = "oauthlib-3.1.0.tar.gz", hash = "sha256:bee41cc35fcca6e988463cacc3bcb8a96224f470ca547e697b604cc697b2f889"},
 ]
+pbr = [
+    {file = "pbr-5.5.1-py2.py3-none-any.whl", hash = "sha256:b236cde0ac9a6aedd5e3c34517b423cd4fd97ef723849da6b0d2231142d89c00"},
+    {file = "pbr-5.5.1.tar.gz", hash = "sha256:5fad80b613c402d5b7df7bd84812548b2a61e9977387a80a5fc5c396492b13c9"},
+]
 pillow = [
     {file = "Pillow-6.2.1-cp27-cp27m-macosx_10_6_intel.whl", hash = "sha256:4ac6148008c169603070c092e81f88738f1a0c511e07bd2bb0f9ef542d375da9"},
     {file = "Pillow-6.2.1-cp27-cp27m-manylinux1_i686.whl", hash = "sha256:4aad1b88933fd6dc2846552b89ad0c74ddbba2f0884e2c162aa368374bf5abab"},
@@ -515,6 +543,10 @@ pyjwt = [
     {file = "PyJWT-2.0.1-py3-none-any.whl", hash = "sha256:b70b15f89dc69b993d8a8d32c299032d5355c82f9b5b7e851d1a6d706dffe847"},
     {file = "PyJWT-2.0.1.tar.gz", hash = "sha256:a5c70a06e1f33d81ef25eecd50d50bd30e34de1ca8b2b9fa3fe0daaabcf69bf7"},
 ]
+pytest-runner = [
+    {file = "pytest-runner-5.3.0.tar.gz", hash = "sha256:ca3f58ff4957e8be6c54c55d575b235725cbbcf4dc0d5091c29c6444cfc8a5fe"},
+    {file = "pytest_runner-5.3.0-py3-none-any.whl", hash = "sha256:448959d9ada752de2b369cf05c1c0f9e6d2027e7d32441187c16c24c1d4d6e77"},
+]
 python3-openid = [
     {file = "python3-openid-3.2.0.tar.gz", hash = "sha256:33fbf6928f401e0b790151ed2b5290b02545e8775f982485205a066f874aaeaf"},
     {file = "python3_openid-3.2.0-py3-none-any.whl", hash = "sha256:6626f771e0417486701e0b4daff762e7212e820ca5b29fcc0d05f6f8736dfa6b"},
diff --git a/pyproject.toml b/pyproject.toml
index 5fdcb20..16c5a76 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -12,7 +12,7 @@ Django = "1.11.28"
 django-appconf = "1.0.3"
 django-flat-responsive = "2.0"
 social-auth-app-django = "3.1.0"
-Django-Select2 = "6.3.1"
+django-select2 = {git = "https://github.com/drozdziak1/django-select2.git", rev = "038a763d9caab00be2d583675edf8a87618af5c7"}
 djangorestframework = "3.11.0"
 Pillow = "6.2.1"
 psycopg2 = "2.8.4"
diff --git a/shell.nix b/shell.nix
index 3a1a894..4d46d4e 100644
--- a/shell.nix
+++ b/shell.nix
@@ -1,8 +1,22 @@
-{ sources ? import ./nix/sources.nix, pkgs ? import sources.nixpkgs {} }:
+{ sources ? import ./nix/sources.nix
+, poetry2nix-olay ? import
+    "${sources.poetry2nix}/overlay.nix"
+, nixpkgs ? sources.nixpkgs
+}:
 
 let
   common-deps = import ./common-deps.nix { inherit sources; };
+  pkgs = import nixpkgs { overlays = [ poetry2nix-olay ]; };
+
+  spejstore-env = pkgs.poetry2nix.mkPoetryEnv {
+    projectDir = ./.;
+  };
 in
 pkgs.mkShell {
-  nativeBuildInputs = with pkgs; [poetry] ++ common-deps;
+  DOCKER_BUILDKIT = 1;
+  COMPOSE_DOCKER_CLI_BUILD = 1;
+  nativeBuildInputs = with pkgs; [
+    spejstore-env
+    poetry
+  ] ++ common-deps;
 }