diff --git a/flake.nix b/flake.nix
index 2e6e3d8..c121e3d 100644
--- a/flake.nix
+++ b/flake.nix
@@ -11,21 +11,30 @@
     outputs = {self, nixpkgs, rust-overlay, flake-utils, ...}:
     flake-utils.lib.eachDefaultSystem(system:
         let
-            dbt-overlay = import ./nix/dbt-core/overlay.nix;
+            dbt-overlay = import ./nix/overlay.nix;
             # TODO(jwall): Is this overlay strictly necessary?
             pkgs = import nixpkgs {inherit system; overlays = [ dbt-overlay rust-overlay.overlay ]; };
             dbt-core = import ./nix/dbt-core/default.nix { inherit pkgs; };
+            dbt-postgres = import ./nix/dbt-postgres/default.nix { inherit pkgs dbt-core; };
+            dbt-redshift = import ./nix/dbt-redshift/default.nix { inherit pkgs dbt-core dbt-postgres; };
         in
         {
+            dbt-core = dbt-core;
+            dbt-redshift = dbt-redshift;
+
             overlays = [ dbt-overlay rust-overlay ];
             defaultPackage = dbt-core;
-            packages.dbt-core = dbt-core;
+            packages = {
+                dbt-core = dbt-core;
+                dbt-redshift = dbt-redshift;
+            };
             defaultApp = {
                 type = "app";
                 program = "${dbt-core}/bin/dbt";
             };
+            # Okay now nix develop should work.
             devShell = pkgs.mkShell {
-                buildInputs = [ dbt-core ];
+                packages = [ dbt-core dbt-redshift dbt-postgres pkgs.python39 pkgs.python39Packages.pip ];
             };
         });
 }
\ No newline at end of file
diff --git a/nix/dbt-core/default.nix b/nix/dbt-core/default.nix
index 751ba19..5fd73dc 100644
--- a/nix/dbt-core/default.nix
+++ b/nix/dbt-core/default.nix
@@ -2,47 +2,6 @@
 with pkgs;
 with python39Packages;
 let inputs = [
-        #attrs
-        #Babel
-        #boto3
-        #agate
-        #certifi
-        #cffi
-        #click
-        #colorama
-        #hologram
-        #idna
-        #importlib-metadata
-        #isodate
-        #jinja2
-        #leather
-        #Logbook
-        #markupsafe
-        #msgpack
-        #networkx
-        #packaging
-        #parsedatetime
-        #psycopg2
-        #pycparser
-        #pyparsing
-        #pyrsistent
-        #python-dateutil
-        #python-slugify
-        #pytimeparse
-        #pytz
-        #requests
-        #sqlparse
-        #text-unidecode
-        #typing-extensions
-        #urllib3
-        #werkzeug
-        #zipp
-        #pyopenssl
-        #vcversioner
-        #six
-        #snowflake-connector-python
-        #charset-normalizer
-        #dbt-postgres
         jsonschema
         networkx
         mashumaro
diff --git a/nix/dbt-postgres/default.nix b/nix/dbt-postgres/default.nix
new file mode 100644
index 0000000..8066598
--- /dev/null
+++ b/nix/dbt-postgres/default.nix
@@ -0,0 +1,27 @@
+
+{pkgs, dbt-core}:
+with pkgs;
+with python39Packages;
+let inputs = [
+    dbt-core
+    typing-extensions
+    jinja2
+    psycopg2
+];
+in
+buildPythonPackage rec {
+    pname = "dbt-postgres";
+    version = "1.0.0";
+    buildInputs = inputs;
+    propagatedBuildInputs = inputs;
+    doCheck = false;
+    # This is gross but I couldn't figure out how to set an environment variable
+    # to configure this properly.
+    patchPhase = ''
+    sed -ibak "s/return 'psycopg2-binary'/return 'psycopg2'/" setup.py
+    '';
+    src = fetchPypi {
+        inherit pname version;
+        sha256 = "sha256-eOrEulixIEBx3oTbaaxE3Gg3K2gNo5h5QoJhM48SKZI=";
+    };
+}
\ No newline at end of file
diff --git a/nix/dbt-redshift/default.nix b/nix/dbt-redshift/default.nix
new file mode 100644
index 0000000..572d8da
--- /dev/null
+++ b/nix/dbt-redshift/default.nix
@@ -0,0 +1,23 @@
+{pkgs, dbt-core, dbt-postgres}:
+with pkgs;
+with python39Packages;
+let inputs = [
+    dbt-core
+    boto3
+    typing-extensions
+    jinja2
+    dbt-postgres
+    #jinja2_3
+];
+in
+buildPythonPackage rec {
+    pname = "dbt-redshift";
+    version = "1.0.0";
+    buildInputs = inputs;
+    propagatedBuildInputs = inputs;
+    doCheck = false;
+    src = fetchPypi {
+        inherit pname version;
+        sha256 = "sha256-ZBkhKxxUA1jyubMkCPzmvqyTh8QPgQ2Y33gEOV6Sc78=";
+    };
+}
\ No newline at end of file
diff --git a/nix/dbt-core/overlay.nix b/nix/overlay.nix
similarity index 90%
rename from nix/dbt-core/overlay.nix
rename to nix/overlay.nix
index 982a35b..173c1bb 100644
--- a/nix/dbt-core/overlay.nix
+++ b/nix/overlay.nix
@@ -8,8 +8,8 @@
                         nativeBuildInputs = with self.rustPlatform; [
                             cargoSetupHook maturinBuildHook
                         ];
-            # some platforms (MacOS) require this
-            buildInputs = [ self.libiconv ];
+                        # some platforms (MacOS) require this
+                        buildInputs = [ self.libiconv ];
                         src = pyself.fetchPypi {
                             inherit pname version;
                             sha256 = "sha256-WGcuNvq5iMhJppNAWSDuGEIfJyRcSOX57PSWNp7TGoU=";
@@ -118,6 +118,22 @@
                             sha256 = "sha256-ptWEM94K6AA0fKsfowQ867q+i6qdKeZo8cdoy4ejM8Y=";
                         };
                     });
+                    psycopg2 = pysuper.psycopg2.overrideAttrs (oldAttrs: rec {
+                        pname = "psycopg2";
+                        version = "2.8";
+                        src = pyself.fetchPypi {
+                            inherit pname version;
+                            sha256 = "sha256-ScWDjZDoMheQnbN4nTChBThbXmluxRaM2mRVRsVC81o=";
+                        };
+                    });
+                    #jinja2_3 = pysuper.jinja2.overrideAttrs (oldAttrs: rec {
+                    #    version = "3.0.0";
+                    #    pname = oldAttrs.pname;
+                    #    src = pyself.fetchPypi {
+                    #        inherit pname version;
+                    #        sha256 = "sha256-6o192BTOnfbeanYex/HKyYr+MFuM3Eqq5OEUuNjOJMU=";
+                    #    };
+                    #});
                     logbook = with pyself; buildPythonPackage rec {
                         pname = "Logbook";
                         version = "1.5.3";
@@ -130,10 +146,10 @@
                     };
                     typing-extensions = with pyself; buildPythonPackage rec {
                         pname = "typing_extensions";
-                        version = "3.7.4.3";
+                        version = "3.10.0.2";
                         src = fetchPypi {
                             inherit pname version;
-                            sha256 = "sha256-mdQHO2F9MCiPVp0/E9K9dUjDp+TI3ofbCanSm7Okpgw=";
+                            sha256 = "sha256-SfddFv8R8c0ljhuYjM/4KjylVwIX162MX0ggXdmaZ34=";
                         };
                     };
                     python-dateutil = pysuper.python-dateutil.overrideAttrs (oldAttrs: rec {
@@ -173,23 +189,6 @@
                     #      license = licenses.isc;
                     #    };
                     #};
-                    #vcversioner = pyself.buildPythonPackage rec {
-                    #    version = "2.16.0.0";
-                    #    pname = "vcversioner";
-                    #    src = pyself.fetchPypi {
-                    #        inherit pname version;
-                    #        sha256 = "sha256-2uYMF6R5eB9EpAEHAYM/GCkUCx7szSWHYqdJdKoG4Zs=";
-                    #    };
-                    #};
-                    #snowflake-connector-python = pysuper.snowflake-connector-python.overrideAttrs (oldAttrs: rec {
-                    #    version = "2.4.1";
-                    #    pname = oldAttrs.pname;
-                    #    src = pyself.fetchPypi {
-                    #        inherit pname;
-                    #        inherit version;
-                    #        sha256 = "1bms4z3zjxzzg0m9smgf0h5cm49h8a41c8w3vyqvx9q22bk814aw";
-                    #    };
-                    #});
                 });
             };
         })
diff --git a/shell.nix b/shell.nix
deleted file mode 100644
index dac9a84..0000000
--- a/shell.nix
+++ /dev/null
@@ -1,24 +0,0 @@
-with import <nixpkgs> {};
-
-stdenv.mkDerivation {
-  name = "pip-env";
-  buildInputs = [
-    # System requirements.
-    readline
-    git
-
-    # Python requirements (enough to get a virtualenv going).
-    python39Full
-    python39Packages.virtualenv
-    python39Packages.pip
-    python39Packages.setuptools
-  ];
-  src = null;
-  shellHook = ''
-    # Allow the use of wheels.
-    SOURCE_DATE_EPOCH=$(date +%s)
-
-    # Augment the dynamic linker path
-    export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:${R}/lib/R/lib:${readline}/lib
-  '';
-}
\ No newline at end of file