diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..f12653d
--- /dev/null
+++ b/.envrc
@@ -0,0 +1 @@
+use flake .#postgres-c
diff --git a/buildPgrxExtension.nix b/buildPgrxExtension.nix
index a4139a1..000d036 100644
--- a/buildPgrxExtension.nix
+++ b/buildPgrxExtension.nix
@@ -26,16 +26,15 @@
 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
-
-{ lib
-, cargo-pgrx
-, pkg-config
-, rustPlatform
-, stdenv
-, Security
-, writeShellScriptBin
+{
+  lib,
+  cargo-pgrx,
+  pkg-config,
+  rustPlatform,
+  stdenv,
+  Security,
+  writeShellScriptBin,
 }:
-
 # The idea behind: Use it mostly like rustPlatform.buildRustPackage and so
 # we hand most of the arguments down.
 #
@@ -46,42 +45,38 @@
 #                      If the generated rust bindings aren't needed to use the extension, its a
 #                      unnecessary and heavy dependency. If you set this to true, you also
 #                      have to add `rustfmt` to `nativeBuildInputs`.
-
-{ buildAndTestSubdir ? null
-, buildType ? "release"
-, buildFeatures ? [ ]
-, cargoBuildFlags ? [ ]
-, postgresql
-# cargo-pgrx calls rustfmt on generated bindings, this is not strictly necessary, so we avoid the
-# dependency here. Set to false and provide rustfmt in nativeBuildInputs, if you need it, e.g.
-# if you include the generated code in the output via postInstall.
-, useFakeRustfmt ? true
-, usePgTestCheckFeature ? true
-, ...
-} @ args:
-let
+{
+  buildAndTestSubdir ? null,
+  buildType ? "release",
+  buildFeatures ? [],
+  cargoBuildFlags ? [],
+  postgresql,
+  # cargo-pgrx calls rustfmt on generated bindings, this is not strictly necessary, so we avoid the
+  # dependency here. Set to false and provide rustfmt in nativeBuildInputs, if you need it, e.g.
+  # if you include the generated code in the output via postInstall.
+  useFakeRustfmt ? true,
+  usePgTestCheckFeature ? true,
+  ...
+} @ args: let
   rustfmtInNativeBuildInputs = lib.lists.any (dep: lib.getName dep == "rustfmt") (args.nativeBuildInputs or []);
 in
-
-assert lib.asserts.assertMsg ((args.installPhase or "") == "")
+  assert lib.asserts.assertMsg ((args.installPhase or "") == "")
   "buildPgrxExtensions overwrites the installPhase, so providing one does nothing";
-assert lib.asserts.assertMsg ((args.buildPhase or "") == "")
+  assert lib.asserts.assertMsg ((args.buildPhase or "") == "")
   "buildPgrxExtensions overwrites the buildPhase, so providing one does nothing";
-assert lib.asserts.assertMsg (useFakeRustfmt -> !rustfmtInNativeBuildInputs)
+  assert lib.asserts.assertMsg (useFakeRustfmt -> !rustfmtInNativeBuildInputs)
   "The parameter useFakeRustfmt is set to true, but rustfmt is included in nativeBuildInputs. Either set useFakeRustfmt to false or remove rustfmt from nativeBuildInputs.";
-assert lib.asserts.assertMsg (!useFakeRustfmt -> rustfmtInNativeBuildInputs)
-  "The parameter useFakeRustfmt is set to false, but rustfmt is not included in nativeBuildInputs. Either set useFakeRustfmt to true or add rustfmt from nativeBuildInputs.";
-
-let
-  fakeRustfmt = writeShellScriptBin "rustfmt" ''
-    exit 0
+  assert lib.asserts.assertMsg (!useFakeRustfmt -> rustfmtInNativeBuildInputs)
+  "The parameter useFakeRustfmt is set to false, but rustfmt is not included in nativeBuildInputs. Either set useFakeRustfmt to true or add rustfmt from nativeBuildInputs."; let
+    fakeRustfmt = writeShellScriptBin "rustfmt" ''
+      exit 0
     '';
-  maybeDebugFlag = lib.optionalString (buildType != "release") "--debug";
-  maybeEnterBuildAndTestSubdir = lib.optionalString (buildAndTestSubdir != null) ''
-    export CARGO_TARGET_DIR="$(pwd)/target"
-    pushd "${buildAndTestSubdir}"
-  '';
-  maybeLeaveBuildAndTestSubdir = lib.optionalString (buildAndTestSubdir != null) "popd";
+    maybeDebugFlag = lib.optionalString (buildType != "release") "--debug";
+    maybeEnterBuildAndTestSubdir = lib.optionalString (buildAndTestSubdir != null) ''
+      export CARGO_TARGET_DIR="$(pwd)/target"
+      pushd "${buildAndTestSubdir}"
+    '';
+    maybeLeaveBuildAndTestSubdir = lib.optionalString (buildAndTestSubdir != null) "popd";
 
   pgrxPostgresMajor = lib.versions.major postgresql.version;
   preBuildAndTest = ''
@@ -97,65 +92,70 @@ let
     pg_ctl stop
   '';
 
-  argsForBuildRustPackage = builtins.removeAttrs args [ "postgresql" "useFakeRustfmt" "usePgTestCheckFeature" ];
+    argsForBuildRustPackage = builtins.removeAttrs args ["postgresql" "useFakeRustfmt" "usePgTestCheckFeature"];
 
-  # so we don't accidentally `(rustPlatform.buildRustPackage argsForBuildRustPackage) // { ... }` because
-  # we forgot parentheses
-  finalArgs = argsForBuildRustPackage // {
-    buildInputs = (args.buildInputs or [ ]) ++ lib.optionals stdenv.hostPlatform.isDarwin [ Security ];
+    # so we don't accidentally `(rustPlatform.buildRustPackage argsForBuildRustPackage) // { ... }` because
+    # we forgot parentheses
+    finalArgs =
+      argsForBuildRustPackage
+      // {
+        buildInputs = (args.buildInputs or []) ++ lib.optionals stdenv.hostPlatform.isDarwin [Security];
 
-    nativeBuildInputs = (args.nativeBuildInputs or [ ]) ++ [
-      cargo-pgrx
-      postgresql
-      pkg-config
-      rustPlatform.bindgenHook
-    ] ++ lib.optionals useFakeRustfmt [ fakeRustfmt ];
+        nativeBuildInputs =
+          (args.nativeBuildInputs or [])
+          ++ [
+            cargo-pgrx
+            postgresql
+            pkg-config
+            rustPlatform.bindgenHook
+          ]
+          ++ lib.optionals useFakeRustfmt [fakeRustfmt];
 
-    buildPhase = ''
-      runHook preBuild
+        buildPhase = ''
+          runHook preBuild
 
-      echo "Executing cargo-pgrx buildPhase"
-      ${preBuildAndTest}
-      ${maybeEnterBuildAndTestSubdir}
+          echo "Executing cargo-pgrx buildPhase"
+          ${preBuildAndTest}
+          ${maybeEnterBuildAndTestSubdir}
 
-      PGRX_BUILD_FLAGS="--frozen -j $NIX_BUILD_CORES ${builtins.concatStringsSep " " cargoBuildFlags}" \
-      ${lib.optionalString stdenv.hostPlatform.isDarwin ''RUSTFLAGS="''${RUSTFLAGS:+''${RUSTFLAGS} }-Clink-args=-Wl,-undefined,dynamic_lookup"''} \
-      cargo pgrx package \
-        --pg-config ${postgresql.pg_config}/bin/pg_config \
-        ${maybeDebugFlag} \
-        --features "${builtins.concatStringsSep " " buildFeatures}" \
-        --out-dir "$out"
+          PGRX_BUILD_FLAGS="--frozen -j $NIX_BUILD_CORES ${builtins.concatStringsSep " " cargoBuildFlags}" \
+          ${lib.optionalString stdenv.hostPlatform.isDarwin ''RUSTFLAGS="''${RUSTFLAGS:+''${RUSTFLAGS} }-Clink-args=-Wl,-undefined,dynamic_lookup"''} \
+          cargo pgrx package \
+            --pg-config ${postgresql.pg_config}/bin/pg_config \
+            ${maybeDebugFlag} \
+            --features "${builtins.concatStringsSep " " buildFeatures}" \
+            --out-dir "$out"
 
-      ${maybeLeaveBuildAndTestSubdir}
+          ${maybeLeaveBuildAndTestSubdir}
 
-      runHook postBuild
-    '';
+          runHook postBuild
+        '';
 
-    preCheck = preBuildAndTest + args.preCheck or "";
+        preCheck = preBuildAndTest + args.preCheck or "";
 
-    installPhase = ''
-      runHook preInstall
+        installPhase = ''
+          runHook preInstall
 
-      echo "Executing buildPgrxExtension install"
+          echo "Executing buildPgrxExtension install"
 
-      ${maybeEnterBuildAndTestSubdir}
+          ${maybeEnterBuildAndTestSubdir}
 
-      cargo-pgrx pgrx stop all
+          cargo-pgrx pgrx stop all
 
-      mv $out/${postgresql}/* $out
-      rm -rf $out/nix
+          mv $out/${postgresql}/* $out
+          rm -rf $out/nix
 
-      ${maybeLeaveBuildAndTestSubdir}
+          ${maybeLeaveBuildAndTestSubdir}
 
-      runHook postInstall
-    '';
+          runHook postInstall
+        '';
 
-    PGRX_PG_SYS_SKIP_BINDING_REWRITE = "1";
-    CARGO_BUILD_INCREMENTAL = "false";
-    RUST_BACKTRACE = "full";
+        PGRX_PG_SYS_SKIP_BINDING_REWRITE = "1";
+        CARGO_BUILD_INCREMENTAL = "false";
+        RUST_BACKTRACE = "full";
 
-    checkNoDefaultFeatures = true;
-    checkFeatures = (args.checkFeatures or [ ]) ++ (lib.optionals usePgTestCheckFeature [ "pg_test" ]) ++ [ "pg${pgrxPostgresMajor}" ];
-  };
-in
-rustPlatform.buildRustPackage finalArgs
+        checkNoDefaultFeatures = true;
+        checkFeatures = (args.checkFeatures or []) ++ (lib.optionals usePgTestCheckFeature ["pg_test"]) ++ ["pg${pgrxPostgresMajor}"];
+      };
+  in
+    rustPlatform.buildRustPackage finalArgs
diff --git a/flake.nix b/flake.nix
index b236259..ed9f21c 100644
--- a/flake.nix
+++ b/flake.nix
@@ -176,7 +176,7 @@
           version = "3.4.3";
           src = pkgs.python3Packages.fetchPypi {
             inherit pname version;
-            sha256 = "sha256-gzYP+LyXmA5P8lyWTHvTkj0zPRd6pPf7c2sBnybHy0E="; 
+            sha256 = "sha256-gzYP+LyXmA5P8lyWTHvTkj0zPRd6pPf7c2sBnybHy0E=";
           };
         };
         py3-cryptomus = pkgs.python3Packages.buildPythonPackage rec {
@@ -184,7 +184,7 @@
           version = "1.1";
           src = pkgs.python3Packages.fetchPypi {
             inherit pname version;
-            sha256 = "sha256-f0BBGfemKxMdz+LMvawWqqRfmF+TrCpMwgtJEYt+fgU="; 
+            sha256 = "sha256-f0BBGfemKxMdz+LMvawWqqRfmF+TrCpMwgtJEYt+fgU=";
           };
         };
         py3-modulegraph = pkgs.python3Packages.buildPythonPackage rec {
@@ -192,7 +192,7 @@
           version = "0.19.6";
           src = pkgs.python3Packages.fetchPypi {
             inherit pname version;
-            sha256 = "sha256-yRTIyVoOEP6IUF1OnCKEtOPbxwlD4wbMZWfjbMVBv0s="; 
+            sha256 = "sha256-yRTIyVoOEP6IUF1OnCKEtOPbxwlD4wbMZWfjbMVBv0s=";
           };
         };
         py3-swifter = pkgs.python3Packages.buildPythonPackage rec {
@@ -200,13 +200,13 @@
           version = "1.4.0";
           src = pkgs.python3Packages.fetchPypi {
             inherit pname version;
-            sha256 = "sha256-4bt0R2ohs/B6F6oYyX/cuoWZcmvRfacy8J2rzFDia6A="; 
+            sha256 = "sha256-4bt0R2ohs/B6F6oYyX/cuoWZcmvRfacy8J2rzFDia6A=";
           };
         };
         py3-aiogram-newsletter = pkgs.python3Packages.buildPythonPackage rec {
           pname = "aiogram-newsletter";
           version = "0.0.10";
-        
+
           src = pkgs.fetchFromGitHub {
             inherit pname version;
             owner = "nessshon";
@@ -247,13 +247,14 @@
         pg-15-ext-plsh = buildPlShExt pkgs "15";
         c-hectic = pkgs.callPackage ./package/c/hectic/default.nix {};
         watch = pkgs.callPackage ./package/c/watch/default.nix {};
+        support-bot = pkgs.callPackage ./package/support-bot {};
       };
 
       devShells.${system} = let
         shells = self.devShells.${system};
       in {
         c = pkgs.mkShell {
-          buildInputs = (with pkgs; [ inotify-tools gdb gcc ]) ++ (with self.packages.${system}; [ c-hectic nvim-pager watch ]);
+          buildInputs = (with pkgs; [inotify-tools gdb gcc]) ++ (with self.packages.${system}; [c-hectic nvim-pager watch]);
           PAGER = "${self.packages.${system}.nvim-pager}/bin/pager";
         };
         postgres-c = pkgs.mkShell {
@@ -271,6 +272,7 @@
 
           shellHook = ''
             export PATH=${pkgs.gcc}/bin:$PATH
+
             export PAGER="${self.packages.${system}.nvim-pager}/bin/pager"
           '';
         };
@@ -352,7 +354,7 @@
 
                   char *value = getenv(env_name);
                   if (value) {
-                      char buffer[128]; 
+                      char buffer[128];
                       sprintf(buffer, "echo $%s\n", env_name);
                       system(buffer);
                   } else {
@@ -440,7 +442,7 @@
                 '';
               };                   
  
-              environment.systemPackages =  with pkgs; [
+              environment.systemPackags =  with pkgs; [
                 gdb
                 hectic.nvim-pager
                 (writeScriptBin "check" ''
@@ -569,7 +571,6 @@
       overlays.default = final: prev: (
         let
 	  hectic-packages = self.packages.${prev.system};
-
         in {
           hectic = hectic-packages;
           postgresql_17 = prev.postgresql_17 // {pkgs = prev.postgresql_17.pkgs // {
@@ -594,11 +595,12 @@
             hemar = hectic-packages.pg-15-ext-hemar;
           };};
           writers = let
-            writeC =
-              name: argsOrScript:
-              if lib.isAttrs argsOrScript && !lib.isDerivation argsOrScript then
+            writeC = name: argsOrScript:
+              if lib.isAttrs argsOrScript && !lib.isDerivation argsOrScript
+              then
                 prev.writers.makeBinWriter (
-                  argsOrScript // {
+                  argsOrScript
+                  // {
                     compileScript = ''
                       # Force gcc to treat the input file as C code
                       ${prev.gcc}/bin/gcc -fsyntax-only -xc $contentPath
@@ -609,7 +611,8 @@
                       ${prev.gcc}/bin/gcc -xc -o $out $contentPath
                     '';
                   }
-                ) name
+                )
+                name
               else
                 prev.writers.makeBinWriter {
                   compileScript = ''
@@ -621,22 +624,25 @@
                     fi
                     ${prev.gcc}/bin/gcc -xc -o $out $contentPath
                   '';
-                } name argsOrScript;
-            writeMinC =
-              name: includes: body:
-                writeC name ''
-                  ${builtins.concatStringsSep "\n" (map (h: "#include " + h) includes)}
+                }
+                name
+                argsOrScript;
+            writeMinC = name: includes: body:
+              writeC name ''
+                ${builtins.concatStringsSep "\n" (map (h: "#include " + h) includes)}
 
-                  int main(int argc, char *argv[]) {
-                      ${body}
-                  }
-                '';
-          in prev.writers // {
-            writeCBin = name: writeC "/bin/${name}";
-            writeC = writeC;
-            writeMinCBin = name: includes: body: writeMinC "/bin/${name}" includes body;
-            writeMinC = writeMinC;
-          };
+                int main(int argc, char *argv[]) {
+                    ${body}
+                }
+              '';
+          in
+            prev.writers
+            // {
+              writeCBin = name: writeC "/bin/${name}";
+              writeC = writeC;
+              writeMinCBin = name: includes: body: writeMinC "/bin/${name}" includes body;
+              writeMinC = writeMinC;
+            };
         }
       );
       lib = {
diff --git a/package/c/hectic/default.nix b/package/c/hectic/default.nix
index 16e4973..0cff336 100644
--- a/package/c/hectic/default.nix
+++ b/package/c/hectic/default.nix
@@ -1,12 +1,11 @@
 { stdenv, patchelf, gcc, lib, bash, inotify-tools }:
-
 stdenv.mkDerivation {
   pname = "hectic";
   version = "1.0";
   src = ./.;
   doCheck = true;
 
-  nativeBuildInputs = [ gcc inotify-tools ];
+  nativeBuildInputs = [gcc inotify-tools];
 
   buildPhase = ''
     ls
@@ -86,4 +85,4 @@ EOF
     description = "hectic";
     license = lib.licenses.mit;
   };
-}
\ No newline at end of file
+}
diff --git a/package/c/hemar/.gitignore b/package/c/hemar/.gitignore
index 022e2c5..416ff15 100755
--- a/package/c/hemar/.gitignore
+++ b/package/c/hemar/.gitignore
@@ -1,2 +1,8 @@
+<<<<<<< HEAD:package/c/hemar/.gitignore
 hemar.o
-hemar.so
\ No newline at end of file
+hemar.so
+=======
+package/c/postgreact/postgreact.control
+package/c/postgreact/postgreact.o
+package/c/postgreact/postgreact.so
+>>>>>>> 016db3d06ae814e0f0cc8f39cd4e5af729bb39ac:package/c/postgreact/.gitignore
diff --git a/package/c/hemar/Makefile b/package/c/hemar/Makefile
index 13e8f67..e53fb3a 100644
--- a/package/c/hemar/Makefile
+++ b/package/c/hemar/Makefile
@@ -12,4 +12,5 @@ PG_LDFLAGS += -Wl,-rpath,$(shell $(HECTIC_CONFIG) --libdir)
 SHLIB_LINK += $(shell $(HECTIC_CONFIG) --libs)
 
 PGXS := $(shell $(PG_CONFIG) --pgxs)
-include $(PGXS)
\ No newline at end of file
+
+include $(PGXS)
diff --git a/package/c/hemar/make.sh b/package/c/hemar/make.sh
index 07e0ba2..a653aae 100755
--- a/package/c/hemar/make.sh
+++ b/package/c/hemar/make.sh
@@ -7,6 +7,8 @@
 #   --color       Pass -fdiagnostics-color=always to compiler.
 #   help, --help  Show this help message.
 
+set -u
+
 check_dependencies() {
   for dep in gcc pg_config; do
     if ! command -v "$dep" >/dev/null 2>&1; then
@@ -105,4 +107,4 @@ case "$MODE" in
     print_help
     exit 1
     ;;
-esac
\ No newline at end of file
+esac
diff --git a/package/c/hemar/postgreact--1.0.sql b/package/c/hemar/postgreact--1.0.sql
new file mode 100644
index 0000000..bca1d87
--- /dev/null
+++ b/package/c/hemar/postgreact--1.0.sql
@@ -0,0 +1,12 @@
+-- complain if script is sourced in psql, rather than via CREATE EXTENSION
+\echo Use "CREATE EXTENSION postgreact" to load this file. \quit
+
+-- Define the hello function that uses our C implementation
+CREATE FUNCTION hello()
+RETURNS
+  TEXT
+STRICT VOLATILE
+LANGUAGE C
+AS
+  'MODULE_PATHNAME', 'hello'
+;
diff --git a/package/c/hemar/postgreact.control.in b/package/c/hemar/postgreact.control.in
new file mode 100644
index 0000000..51233d2
--- /dev/null
+++ b/package/c/hemar/postgreact.control.in
@@ -0,0 +1,4 @@
+comment = '@EXTENSION_COMMENT@'
+default_version = '@EXTENSION_VERSION@'
+module_pathname = '$libdir/@EXTENSION@'
+relocatable = false
diff --git a/package/c/hemar/postgreact.h b/package/c/hemar/postgreact.h
new file mode 100644
index 0000000..74a5226
--- /dev/null
+++ b/package/c/hemar/postgreact.h
@@ -0,0 +1,16 @@
+#ifndef POSTGREACT_H
+#define POSTGREACT_H
+
+#include "postgres.h"
+
+#ifdef PG_MODULE_MAGIC
+PG_MODULE_MAGIC;
+#endif
+
+void _PG_init(void);
+void _PG_fini(void);
+
+Datum hello(PG_FUNCTION_ARGS);
+PG_FUNCTION_INFO_V1(hello);
+
+#endif // POSTGREACT_H
diff --git a/package/c/prettify/default.nix b/package/c/prettify/default.nix
index 725a702..90c22de 100644
--- a/package/c/prettify/default.nix
+++ b/package/c/prettify/default.nix
@@ -1,12 +1,17 @@
-{ stdenv, gcc, lib, bash, c-hectic }:
-
+{
+  stdenv,
+  gcc,
+  lib,
+  bash,
+  c-hectic,
+}:
 stdenv.mkDerivation {
   pname = "prettify";
   version = "1.0";
   src = ./.;
   doCheck = false;
 
-  nativeBuildInputs = [ gcc c-hectic ];
+  nativeBuildInputs = [gcc c-hectic];
 
   buildPhase = ''
     ls
diff --git a/package/c/watch/default.nix b/package/c/watch/default.nix
index 6b1937f..2313bc9 100644
--- a/package/c/watch/default.nix
+++ b/package/c/watch/default.nix
@@ -1,12 +1,17 @@
-{ stdenv, gcc, lib, bash, gdb }:
-
+{
+  stdenv,
+  gcc,
+  lib,
+  bash,
+  gdb,
+}:
 stdenv.mkDerivation {
   pname = "watch";
   version = "1.0";
   src = ./.;
   doCheck = false;
 
-  nativeBuildInputs = [ gcc gdb ];
+  nativeBuildInputs = [gcc gdb];
 
   buildPhase = ''
     ${bash}/bin/sh ./make.sh build
@@ -25,4 +30,4 @@ stdenv.mkDerivation {
     description = "watch";
     license = lib.licenses.mit;
   };
-}
\ No newline at end of file
+}
diff --git a/package/postgres/pg-migration/default.nix b/package/postgres/pg-migration/default.nix
index 098a3d9..f69c04e 100644
--- a/package/postgres/pg-migration/default.nix
+++ b/package/postgres/pg-migration/default.nix
@@ -16,7 +16,7 @@ in
 
     cargoLock.lockFile = ./Cargo.lock;
 
-    buildInputs = [ postgresql_15 ];
+    buildInputs = [postgresql_15];
 
     doCheck = true;
   }
diff --git a/package/support-bot/default.nix b/package/support-bot/default.nix
new file mode 100644
index 0000000..1a5b400
--- /dev/null
+++ b/package/support-bot/default.nix
@@ -0,0 +1,78 @@
+{
+  fetchFromGitHub,
+  pkgs,
+  ...
+}: let
+  aiogram-newsletter = pkgs.python3Packages.buildPythonPackage {
+    pname = "example-package";
+    version = "0.0.10";
+  
+    src = fetchFromGitHub {
+      owner = "nessshon";
+      repo = "aiogram-newsletter";
+      rev = "bb8a42e4bcff66a9a606fc92ccc27b1d094b20fc";
+      sha256 = "sha256-atKhccp8Pr8anJUo+M9hnYkYrcgnB9SxrpmsiVusJZs=";
+    };
+  
+    propagatedBuildInputs = [ ];
+  
+    meta = {
+      description = "";
+    };
+  };
+in pkgs.python3Packages.buildPythonPackage {
+  pname = "support-bot";
+  version = "1.0.0";
+
+  src = pkgs.fetchFromGitHub {
+    owner = "nessshon";
+    repo = "support-bot";
+    rev = "9191d9a9ba6bfd81e267b6ca41836db037555976";
+    sha256 = "sha256-94/cGN0OMytrQB66B2WA44bRaz+qXI627C/oE9iFgNU=";
+  };
+
+  postPatch = ''
+    cat > setup.py <<'EOF1'
+    from setuptools import setup
+                  
+    setup(
+      name="support-bot",
+      version="1.0.0",
+      install_requires=[
+        "aiogram==3.7.0",
+        "aiogram-newsletter>=0.0.10",
+        "cachetools==5.3.2",
+        "environs==10.3.0",
+        "pydantic==2.5.3",
+        "redis==5.0.1",
+        "apscheduler",
+      ],
+      entry_points={
+        "console_scripts": [
+          "support-bot=app.entry_point:main",
+        ],
+      },
+    )
+    EOF1
+    cat > app/entry_point.py <<'EOF2'
+    def main():
+      import asyncio
+      from .__main__ import main
+      asyncio.run(main())
+    EOF2
+  '';
+
+  propagatedBuildInputs = (with pkgs.python3Packages; [
+    aiogram
+    apscheduler
+    cachetools
+    environs
+    pydantic
+    redis
+  ]) ++ [ aiogram-newsletter ];
+
+  meta = {
+    description = "A support bot for GitHub";
+    homepage = "https://github.com/nessshon/support-bot";
+  };
+}