diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..3550a30
--- /dev/null
+++ b/.envrc
@@ -0,0 +1 @@
+use flake
diff --git a/default.nix b/default.nix
new file mode 100644
index 0000000..d9c0dae
--- /dev/null
+++ b/default.nix
@@ -0,0 +1,17 @@
+# This file has been generated by node2nix 1.11.1. Do not edit!
+
+{pkgs ? import <nixpkgs> {
+    inherit system;
+  }, system ? builtins.currentSystem, nodejs ? pkgs."nodejs_18"}:
+
+let
+  nodeEnv = import ./node-env.nix {
+    inherit (pkgs) stdenv lib python2 runCommand writeTextFile writeShellScript;
+    inherit pkgs nodejs;
+    libtool = if pkgs.stdenv.isDarwin then pkgs.darwin.cctools else null;
+  };
+in
+import ./node-packages.nix {
+  inherit (pkgs) fetchurl nix-gitignore stdenv lib fetchgit;
+  inherit nodeEnv;
+}
diff --git a/dependencies.js b/dependencies.js
new file mode 100644
index 0000000..586104e
--- /dev/null
+++ b/dependencies.js
@@ -0,0 +1,4 @@
+// DB
+const db = require('better-sqlite3')('mytest.db');
+
+module.exports = db
diff --git a/flake.nix b/flake.nix
index 0b20c47..ee141ab 100644
--- a/flake.nix
+++ b/flake.nix
@@ -37,6 +37,8 @@
               yarn
               prettierd
               nodePackages.typescript-language-server
+              pgformatter
+              hurl
             ];
           };
         }
diff --git a/index.js b/index.js
index 4890fe1..21a7b44 100644
--- a/index.js
+++ b/index.js
@@ -1,32 +1,45 @@
-const express = require('express')
-const app = express()
-const port = 3000
+const express = require("express");
+const OpenApiValidator = require("express-openapi-validator");
+const app = express();
+const port = 3000;
 
 //// Swagger
-const swaggerUi = require('swagger-ui-express')
-const YAML = require('yaml')
-const fs = require('fs')
+const swaggerUi = require("swagger-ui-express");
+const YAML = require("yaml");
+const fs = require("fs");
 
-const file = fs.readFileSync('./open_api.yaml', 'utf8')
-const swaggerDocument = YAML.parse(file)
+const file = fs.readFileSync("./open_api.yaml", "utf8");
+const swaggerDocument = YAML.parse(file);
 
-app.use('/docs', swaggerUi.serve, swaggerUi.setup(swaggerDocument))
+app.use("/docs", swaggerUi.serve, swaggerUi.setup(swaggerDocument));
+
+// Validator
 // app.use(express.json())
-
-// DB
-const db = require('better-sqlite3')('mytest.db');
+// app.use(
+//     OpenApiValidator.middleware({
+//         apiSpec: './open_api.yaml',
+//         validateResponses:
 
 // Routes
-const accountsRoute = require('./routes/accounts')
-const transactionsRoute = require('./routes/transactions')
+app.use(express.json());
+app.use(express.urlencoded({ extended: true }))
 
-app.use('/accounts', accountsRoute);
-app.use('/transactions', transactionsRoute);
 
-app.get('/', (req, res) => {
-    res.send('Hello World!')
-})
+const accountsRoute = require("./routes/accounts");
+const transactionsRoute = require("./routes/transactions");
+const { isNullOrUndefined } = require("util");
+
+const basepath = "/api/v1";
+
+app.use(`${basepath}/accounts`, accountsRoute);
+app.use(`${basepath}/transactions`, transactionsRoute);
+
+
+
+app.get("/", (req, res) => {
+    res.send("Hello World!");
+});
 
 app.listen(port, () => {
-    console.log(`Example app listening on port ${port}`)
-})
+    console.log(`Example app listening on port ${port}`);
+});
diff --git a/node-env.nix b/node-env.nix
new file mode 100644
index 0000000..bc1e366
--- /dev/null
+++ b/node-env.nix
@@ -0,0 +1,689 @@
+# This file originates from node2nix
+
+{lib, stdenv, nodejs, python2, pkgs, libtool, runCommand, writeTextFile, writeShellScript}:
+
+let
+  # Workaround to cope with utillinux in Nixpkgs 20.09 and util-linux in Nixpkgs master
+  utillinux = if pkgs ? utillinux then pkgs.utillinux else pkgs.util-linux;
+
+  python = if nodejs ? python then nodejs.python else python2;
+
+  # Create a tar wrapper that filters all the 'Ignoring unknown extended header keyword' noise
+  tarWrapper = runCommand "tarWrapper" {} ''
+    mkdir -p $out/bin
+
+    cat > $out/bin/tar <<EOF
+    #! ${stdenv.shell} -e
+    $(type -p tar) "\$@" --warning=no-unknown-keyword --delay-directory-restore
+    EOF
+
+    chmod +x $out/bin/tar
+  '';
+
+  # Function that generates a TGZ file from a NPM project
+  buildNodeSourceDist =
+    { name, version, src, ... }:
+
+    stdenv.mkDerivation {
+      name = "node-tarball-${name}-${version}";
+      inherit src;
+      buildInputs = [ nodejs ];
+      buildPhase = ''
+        export HOME=$TMPDIR
+        tgzFile=$(npm pack | tail -n 1) # Hooks to the pack command will add output (https://docs.npmjs.com/misc/scripts)
+      '';
+      installPhase = ''
+        mkdir -p $out/tarballs
+        mv $tgzFile $out/tarballs
+        mkdir -p $out/nix-support
+        echo "file source-dist $out/tarballs/$tgzFile" >> $out/nix-support/hydra-build-products
+      '';
+    };
+
+  # Common shell logic
+  installPackage = writeShellScript "install-package" ''
+    installPackage() {
+      local packageName=$1 src=$2
+
+      local strippedName
+
+      local DIR=$PWD
+      cd $TMPDIR
+
+      unpackFile $src
+
+      # Make the base dir in which the target dependency resides first
+      mkdir -p "$(dirname "$DIR/$packageName")"
+
+      if [ -f "$src" ]
+      then
+          # Figure out what directory has been unpacked
+          packageDir="$(find . -maxdepth 1 -type d | tail -1)"
+
+          # Restore write permissions to make building work
+          find "$packageDir" -type d -exec chmod u+x {} \;
+          chmod -R u+w "$packageDir"
+
+          # Move the extracted tarball into the output folder
+          mv "$packageDir" "$DIR/$packageName"
+      elif [ -d "$src" ]
+      then
+          # Get a stripped name (without hash) of the source directory.
+          # On old nixpkgs it's already set internally.
+          if [ -z "$strippedName" ]
+          then
+              strippedName="$(stripHash $src)"
+          fi
+
+          # Restore write permissions to make building work
+          chmod -R u+w "$strippedName"
+
+          # Move the extracted directory into the output folder
+          mv "$strippedName" "$DIR/$packageName"
+      fi
+
+      # Change to the package directory to install dependencies
+      cd "$DIR/$packageName"
+    }
+  '';
+
+  # Bundle the dependencies of the package
+  #
+  # Only include dependencies if they don't exist. They may also be bundled in the package.
+  includeDependencies = {dependencies}:
+    lib.optionalString (dependencies != []) (
+      ''
+        mkdir -p node_modules
+        cd node_modules
+      ''
+      + (lib.concatMapStrings (dependency:
+        ''
+          if [ ! -e "${dependency.packageName}" ]; then
+              ${composePackage dependency}
+          fi
+        ''
+      ) dependencies)
+      + ''
+        cd ..
+      ''
+    );
+
+  # Recursively composes the dependencies of a package
+  composePackage = { name, packageName, src, dependencies ? [], ... }@args:
+    builtins.addErrorContext "while evaluating node package '${packageName}'" ''
+      installPackage "${packageName}" "${src}"
+      ${includeDependencies { inherit dependencies; }}
+      cd ..
+      ${lib.optionalString (builtins.substring 0 1 packageName == "@") "cd .."}
+    '';
+
+  pinpointDependencies = {dependencies, production}:
+    let
+      pinpointDependenciesFromPackageJSON = writeTextFile {
+        name = "pinpointDependencies.js";
+        text = ''
+          var fs = require('fs');
+          var path = require('path');
+
+          function resolveDependencyVersion(location, name) {
+              if(location == process.env['NIX_STORE']) {
+                  return null;
+              } else {
+                  var dependencyPackageJSON = path.join(location, "node_modules", name, "package.json");
+
+                  if(fs.existsSync(dependencyPackageJSON)) {
+                      var dependencyPackageObj = JSON.parse(fs.readFileSync(dependencyPackageJSON));
+
+                      if(dependencyPackageObj.name == name) {
+                          return dependencyPackageObj.version;
+                      }
+                  } else {
+                      return resolveDependencyVersion(path.resolve(location, ".."), name);
+                  }
+              }
+          }
+
+          function replaceDependencies(dependencies) {
+              if(typeof dependencies == "object" && dependencies !== null) {
+                  for(var dependency in dependencies) {
+                      var resolvedVersion = resolveDependencyVersion(process.cwd(), dependency);
+
+                      if(resolvedVersion === null) {
+                          process.stderr.write("WARNING: cannot pinpoint dependency: "+dependency+", context: "+process.cwd()+"\n");
+                      } else {
+                          dependencies[dependency] = resolvedVersion;
+                      }
+                  }
+              }
+          }
+
+          /* Read the package.json configuration */
+          var packageObj = JSON.parse(fs.readFileSync('./package.json'));
+
+          /* Pinpoint all dependencies */
+          replaceDependencies(packageObj.dependencies);
+          if(process.argv[2] == "development") {
+              replaceDependencies(packageObj.devDependencies);
+          }
+          else {
+              packageObj.devDependencies = {};
+          }
+          replaceDependencies(packageObj.optionalDependencies);
+          replaceDependencies(packageObj.peerDependencies);
+
+          /* Write the fixed package.json file */
+          fs.writeFileSync("package.json", JSON.stringify(packageObj, null, 2));
+        '';
+      };
+    in
+    ''
+      node ${pinpointDependenciesFromPackageJSON} ${if production then "production" else "development"}
+
+      ${lib.optionalString (dependencies != [])
+        ''
+          if [ -d node_modules ]
+          then
+              cd node_modules
+              ${lib.concatMapStrings (dependency: pinpointDependenciesOfPackage dependency) dependencies}
+              cd ..
+          fi
+        ''}
+    '';
+
+  # Recursively traverses all dependencies of a package and pinpoints all
+  # dependencies in the package.json file to the versions that are actually
+  # being used.
+
+  pinpointDependenciesOfPackage = { packageName, dependencies ? [], production ? true, ... }@args:
+    ''
+      if [ -d "${packageName}" ]
+      then
+          cd "${packageName}"
+          ${pinpointDependencies { inherit dependencies production; }}
+          cd ..
+          ${lib.optionalString (builtins.substring 0 1 packageName == "@") "cd .."}
+      fi
+    '';
+
+  # Extract the Node.js source code which is used to compile packages with
+  # native bindings
+  nodeSources = runCommand "node-sources" {} ''
+    tar --no-same-owner --no-same-permissions -xf ${nodejs.src}
+    mv node-* $out
+  '';
+
+  # Script that adds _integrity fields to all package.json files to prevent NPM from consulting the cache (that is empty)
+  addIntegrityFieldsScript = writeTextFile {
+    name = "addintegrityfields.js";
+    text = ''
+      var fs = require('fs');
+      var path = require('path');
+
+      function augmentDependencies(baseDir, dependencies) {
+          for(var dependencyName in dependencies) {
+              var dependency = dependencies[dependencyName];
+
+              // Open package.json and augment metadata fields
+              var packageJSONDir = path.join(baseDir, "node_modules", dependencyName);
+              var packageJSONPath = path.join(packageJSONDir, "package.json");
+
+              if(fs.existsSync(packageJSONPath)) { // Only augment packages that exist. Sometimes we may have production installs in which development dependencies can be ignored
+                  console.log("Adding metadata fields to: "+packageJSONPath);
+                  var packageObj = JSON.parse(fs.readFileSync(packageJSONPath));
+
+                  if(dependency.integrity) {
+                      packageObj["_integrity"] = dependency.integrity;
+                  } else {
+                      packageObj["_integrity"] = "sha1-000000000000000000000000000="; // When no _integrity string has been provided (e.g. by Git dependencies), add a dummy one. It does not seem to harm and it bypasses downloads.
+                  }
+
+                  if(dependency.resolved) {
+                      packageObj["_resolved"] = dependency.resolved; // Adopt the resolved property if one has been provided
+                  } else {
+                      packageObj["_resolved"] = dependency.version; // Set the resolved version to the version identifier. This prevents NPM from cloning Git repositories.
+                  }
+
+                  if(dependency.from !== undefined) { // Adopt from property if one has been provided
+                      packageObj["_from"] = dependency.from;
+                  }
+
+                  fs.writeFileSync(packageJSONPath, JSON.stringify(packageObj, null, 2));
+              }
+
+              // Augment transitive dependencies
+              if(dependency.dependencies !== undefined) {
+                  augmentDependencies(packageJSONDir, dependency.dependencies);
+              }
+          }
+      }
+
+      if(fs.existsSync("./package-lock.json")) {
+          var packageLock = JSON.parse(fs.readFileSync("./package-lock.json"));
+
+          if(![1, 2].includes(packageLock.lockfileVersion)) {
+            process.stderr.write("Sorry, I only understand lock file versions 1 and 2!\n");
+            process.exit(1);
+          }
+
+          if(packageLock.dependencies !== undefined) {
+              augmentDependencies(".", packageLock.dependencies);
+          }
+      }
+    '';
+  };
+
+  # Reconstructs a package-lock file from the node_modules/ folder structure and package.json files with dummy sha1 hashes
+  reconstructPackageLock = writeTextFile {
+    name = "reconstructpackagelock.js";
+    text = ''
+      var fs = require('fs');
+      var path = require('path');
+
+      var packageObj = JSON.parse(fs.readFileSync("package.json"));
+
+      var lockObj = {
+          name: packageObj.name,
+          version: packageObj.version,
+          lockfileVersion: 2,
+          requires: true,
+          packages: {
+              "": {
+                  name: packageObj.name,
+                  version: packageObj.version,
+                  license: packageObj.license,
+                  bin: packageObj.bin,
+                  dependencies: packageObj.dependencies,
+                  engines: packageObj.engines,
+                  optionalDependencies: packageObj.optionalDependencies
+              }
+          },
+          dependencies: {}
+      };
+
+      function augmentPackageJSON(filePath, packages, dependencies) {
+          var packageJSON = path.join(filePath, "package.json");
+          if(fs.existsSync(packageJSON)) {
+              var packageObj = JSON.parse(fs.readFileSync(packageJSON));
+              packages[filePath] = {
+                  version: packageObj.version,
+                  integrity: "sha1-000000000000000000000000000=",
+                  dependencies: packageObj.dependencies,
+                  engines: packageObj.engines,
+                  optionalDependencies: packageObj.optionalDependencies
+              };
+              dependencies[packageObj.name] = {
+                  version: packageObj.version,
+                  integrity: "sha1-000000000000000000000000000=",
+                  dependencies: {}
+              };
+              processDependencies(path.join(filePath, "node_modules"), packages, dependencies[packageObj.name].dependencies);
+          }
+      }
+
+      function processDependencies(dir, packages, dependencies) {
+          if(fs.existsSync(dir)) {
+              var files = fs.readdirSync(dir);
+
+              files.forEach(function(entry) {
+                  var filePath = path.join(dir, entry);
+                  var stats = fs.statSync(filePath);
+
+                  if(stats.isDirectory()) {
+                      if(entry.substr(0, 1) == "@") {
+                          // When we encounter a namespace folder, augment all packages belonging to the scope
+                          var pkgFiles = fs.readdirSync(filePath);
+
+                          pkgFiles.forEach(function(entry) {
+                              if(stats.isDirectory()) {
+                                  var pkgFilePath = path.join(filePath, entry);
+                                  augmentPackageJSON(pkgFilePath, packages, dependencies);
+                              }
+                          });
+                      } else {
+                          augmentPackageJSON(filePath, packages, dependencies);
+                      }
+                  }
+              });
+          }
+      }
+
+      processDependencies("node_modules", lockObj.packages, lockObj.dependencies);
+
+      fs.writeFileSync("package-lock.json", JSON.stringify(lockObj, null, 2));
+    '';
+  };
+
+  # Script that links bins defined in package.json to the node_modules bin directory
+  # NPM does not do this for top-level packages itself anymore as of v7
+  linkBinsScript = writeTextFile {
+    name = "linkbins.js";
+    text = ''
+      var fs = require('fs');
+      var path = require('path');
+
+      var packageObj = JSON.parse(fs.readFileSync("package.json"));
+
+      var nodeModules = Array(packageObj.name.split("/").length).fill("..").join(path.sep);
+
+      if(packageObj.bin !== undefined) {
+          fs.mkdirSync(path.join(nodeModules, ".bin"))
+
+          if(typeof packageObj.bin == "object") {
+              Object.keys(packageObj.bin).forEach(function(exe) {
+                  if(fs.existsSync(packageObj.bin[exe])) {
+                      console.log("linking bin '" + exe + "'");
+                      fs.symlinkSync(
+                          path.join("..", packageObj.name, packageObj.bin[exe]),
+                          path.join(nodeModules, ".bin", exe)
+                      );
+                  }
+                  else {
+                      console.log("skipping non-existent bin '" + exe + "'");
+                  }
+              })
+          }
+          else {
+              if(fs.existsSync(packageObj.bin)) {
+                  console.log("linking bin '" + packageObj.bin + "'");
+                  fs.symlinkSync(
+                      path.join("..", packageObj.name, packageObj.bin),
+                      path.join(nodeModules, ".bin", packageObj.name.split("/").pop())
+                  );
+              }
+              else {
+                  console.log("skipping non-existent bin '" + packageObj.bin + "'");
+              }
+          }
+      }
+      else if(packageObj.directories !== undefined && packageObj.directories.bin !== undefined) {
+          fs.mkdirSync(path.join(nodeModules, ".bin"))
+
+          fs.readdirSync(packageObj.directories.bin).forEach(function(exe) {
+              if(fs.existsSync(path.join(packageObj.directories.bin, exe))) {
+                  console.log("linking bin '" + exe + "'");
+                  fs.symlinkSync(
+                      path.join("..", packageObj.name, packageObj.directories.bin, exe),
+                      path.join(nodeModules, ".bin", exe)
+                  );
+              }
+              else {
+                  console.log("skipping non-existent bin '" + exe + "'");
+              }
+          })
+      }
+    '';
+  };
+
+  prepareAndInvokeNPM = {packageName, bypassCache, reconstructLock, npmFlags, production}:
+    let
+      forceOfflineFlag = if bypassCache then "--offline" else "--registry http://www.example.com";
+    in
+    ''
+        # Pinpoint the versions of all dependencies to the ones that are actually being used
+        echo "pinpointing versions of dependencies..."
+        source $pinpointDependenciesScriptPath
+
+        # Patch the shebangs of the bundled modules to prevent them from
+        # calling executables outside the Nix store as much as possible
+        patchShebangs .
+
+        # Deploy the Node.js package by running npm install. Since the
+        # dependencies have been provided already by ourselves, it should not
+        # attempt to install them again, which is good, because we want to make
+        # it Nix's responsibility. If it needs to install any dependencies
+        # anyway (e.g. because the dependency parameters are
+        # incomplete/incorrect), it fails.
+        #
+        # The other responsibilities of NPM are kept -- version checks, build
+        # steps, postprocessing etc.
+
+        export HOME=$TMPDIR
+        cd "${packageName}"
+        runHook preRebuild
+
+        ${lib.optionalString bypassCache ''
+          ${lib.optionalString reconstructLock ''
+            if [ -f package-lock.json ]
+            then
+                echo "WARNING: Reconstruct lock option enabled, but a lock file already exists!"
+                echo "This will most likely result in version mismatches! We will remove the lock file and regenerate it!"
+                rm package-lock.json
+            else
+                echo "No package-lock.json file found, reconstructing..."
+            fi
+
+            node ${reconstructPackageLock}
+          ''}
+
+          node ${addIntegrityFieldsScript}
+        ''}
+
+        npm ${forceOfflineFlag} --nodedir=${nodeSources} ${npmFlags} ${lib.optionalString production "--production"} rebuild
+
+        runHook postRebuild
+
+        if [ "''${dontNpmInstall-}" != "1" ]
+        then
+            # NPM tries to download packages even when they already exist if npm-shrinkwrap is used.
+            rm -f npm-shrinkwrap.json
+
+            npm ${forceOfflineFlag} --nodedir=${nodeSources} --no-bin-links --ignore-scripts ${npmFlags} ${lib.optionalString production "--production"} install
+        fi
+
+        # Link executables defined in package.json
+        node ${linkBinsScript}
+    '';
+
+  # Builds and composes an NPM package including all its dependencies
+  buildNodePackage =
+    { name
+    , packageName
+    , version ? null
+    , dependencies ? []
+    , buildInputs ? []
+    , production ? true
+    , npmFlags ? ""
+    , dontNpmInstall ? false
+    , bypassCache ? false
+    , reconstructLock ? false
+    , preRebuild ? ""
+    , dontStrip ? true
+    , unpackPhase ? "true"
+    , buildPhase ? "true"
+    , meta ? {}
+    , ... }@args:
+
+    let
+      extraArgs = removeAttrs args [ "name" "dependencies" "buildInputs" "dontStrip" "dontNpmInstall" "preRebuild" "unpackPhase" "buildPhase" "meta" ];
+    in
+    stdenv.mkDerivation ({
+      name = "${name}${if version == null then "" else "-${version}"}";
+      buildInputs = [ tarWrapper python nodejs ]
+        ++ lib.optional (stdenv.isLinux) utillinux
+        ++ lib.optional (stdenv.isDarwin) libtool
+        ++ buildInputs;
+
+      inherit nodejs;
+
+      inherit dontStrip; # Stripping may fail a build for some package deployments
+      inherit dontNpmInstall preRebuild unpackPhase buildPhase;
+
+      compositionScript = composePackage args;
+      pinpointDependenciesScript = pinpointDependenciesOfPackage args;
+
+      passAsFile = [ "compositionScript" "pinpointDependenciesScript" ];
+
+      installPhase = ''
+        source ${installPackage}
+
+        # Create and enter a root node_modules/ folder
+        mkdir -p $out/lib/node_modules
+        cd $out/lib/node_modules
+
+        # Compose the package and all its dependencies
+        source $compositionScriptPath
+
+        ${prepareAndInvokeNPM { inherit packageName bypassCache reconstructLock npmFlags production; }}
+
+        # Create symlink to the deployed executable folder, if applicable
+        if [ -d "$out/lib/node_modules/.bin" ]
+        then
+            ln -s $out/lib/node_modules/.bin $out/bin
+
+            # Fixup all executables
+            ls $out/bin/* | while read i
+            do
+                file="$(readlink -f "$i")"
+                chmod u+rwx "$file"
+                if isScript "$file"
+                then
+                    sed -i 's/\r$//' "$file"  # convert crlf to lf
+                fi
+            done
+        fi
+
+        # Create symlinks to the deployed manual page folders, if applicable
+        if [ -d "$out/lib/node_modules/${packageName}/man" ]
+        then
+            mkdir -p $out/share
+            for dir in "$out/lib/node_modules/${packageName}/man/"*
+            do
+                mkdir -p $out/share/man/$(basename "$dir")
+                for page in "$dir"/*
+                do
+                    ln -s $page $out/share/man/$(basename "$dir")
+                done
+            done
+        fi
+
+        # Run post install hook, if provided
+        runHook postInstall
+      '';
+
+      meta = {
+        # default to Node.js' platforms
+        platforms = nodejs.meta.platforms;
+      } // meta;
+    } // extraArgs);
+
+  # Builds a node environment (a node_modules folder and a set of binaries)
+  buildNodeDependencies =
+    { name
+    , packageName
+    , version ? null
+    , src
+    , dependencies ? []
+    , buildInputs ? []
+    , production ? true
+    , npmFlags ? ""
+    , dontNpmInstall ? false
+    , bypassCache ? false
+    , reconstructLock ? false
+    , dontStrip ? true
+    , unpackPhase ? "true"
+    , buildPhase ? "true"
+    , ... }@args:
+
+    let
+      extraArgs = removeAttrs args [ "name" "dependencies" "buildInputs" ];
+    in
+      stdenv.mkDerivation ({
+        name = "node-dependencies-${name}${if version == null then "" else "-${version}"}";
+
+        buildInputs = [ tarWrapper python nodejs ]
+          ++ lib.optional (stdenv.isLinux) utillinux
+          ++ lib.optional (stdenv.isDarwin) libtool
+          ++ buildInputs;
+
+        inherit dontStrip; # Stripping may fail a build for some package deployments
+        inherit dontNpmInstall unpackPhase buildPhase;
+
+        includeScript = includeDependencies { inherit dependencies; };
+        pinpointDependenciesScript = pinpointDependenciesOfPackage args;
+
+        passAsFile = [ "includeScript" "pinpointDependenciesScript" ];
+
+        installPhase = ''
+          source ${installPackage}
+
+          mkdir -p $out/${packageName}
+          cd $out/${packageName}
+
+          source $includeScriptPath
+
+          # Create fake package.json to make the npm commands work properly
+          cp ${src}/package.json .
+          chmod 644 package.json
+          ${lib.optionalString bypassCache ''
+            if [ -f ${src}/package-lock.json ]
+            then
+                cp ${src}/package-lock.json .
+                chmod 644 package-lock.json
+            fi
+          ''}
+
+          # Go to the parent folder to make sure that all packages are pinpointed
+          cd ..
+          ${lib.optionalString (builtins.substring 0 1 packageName == "@") "cd .."}
+
+          ${prepareAndInvokeNPM { inherit packageName bypassCache reconstructLock npmFlags production; }}
+
+          # Expose the executables that were installed
+          cd ..
+          ${lib.optionalString (builtins.substring 0 1 packageName == "@") "cd .."}
+
+          mv ${packageName} lib
+          ln -s $out/lib/node_modules/.bin $out/bin
+        '';
+      } // extraArgs);
+
+  # Builds a development shell
+  buildNodeShell =
+    { name
+    , packageName
+    , version ? null
+    , src
+    , dependencies ? []
+    , buildInputs ? []
+    , production ? true
+    , npmFlags ? ""
+    , dontNpmInstall ? false
+    , bypassCache ? false
+    , reconstructLock ? false
+    , dontStrip ? true
+    , unpackPhase ? "true"
+    , buildPhase ? "true"
+    , ... }@args:
+
+    let
+      nodeDependencies = buildNodeDependencies args;
+      extraArgs = removeAttrs args [ "name" "dependencies" "buildInputs" "dontStrip" "dontNpmInstall" "unpackPhase" "buildPhase" ];
+    in
+    stdenv.mkDerivation ({
+      name = "node-shell-${name}${if version == null then "" else "-${version}"}";
+
+      buildInputs = [ python nodejs ] ++ lib.optional (stdenv.isLinux) utillinux ++ buildInputs;
+      buildCommand = ''
+        mkdir -p $out/bin
+        cat > $out/bin/shell <<EOF
+        #! ${stdenv.shell} -e
+        $shellHook
+        exec ${stdenv.shell}
+        EOF
+        chmod +x $out/bin/shell
+      '';
+
+      # Provide the dependencies in a development shell through the NODE_PATH environment variable
+      inherit nodeDependencies;
+      shellHook = lib.optionalString (dependencies != []) ''
+        export NODE_PATH=${nodeDependencies}/lib/node_modules
+        export PATH="${nodeDependencies}/bin:$PATH"
+      '';
+    } // extraArgs);
+in
+{
+  buildNodeSourceDist = lib.makeOverridable buildNodeSourceDist;
+  buildNodePackage = lib.makeOverridable buildNodePackage;
+  buildNodeDependencies = lib.makeOverridable buildNodeDependencies;
+  buildNodeShell = lib.makeOverridable buildNodeShell;
+}
diff --git a/node-packages.nix b/node-packages.nix
new file mode 100644
index 0000000..dfa08b9
--- /dev/null
+++ b/node-packages.nix
@@ -0,0 +1,1116 @@
+# This file has been generated by node2nix 1.11.1. Do not edit!
+
+{nodeEnv, fetchurl, fetchgit, nix-gitignore, stdenv, lib, globalBuildInputs ? []}:
+
+let
+  sources = {
+    "accepts-1.3.8" = {
+      name = "accepts";
+      packageName = "accepts";
+      version = "1.3.8";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/accepts/-/accepts-1.3.8.tgz";
+        sha512 = "PYAthTa2m2VKxuvSD3DPC/Gy+U+sOA1LAuT8mkmRuvw+NACSaeXEQ+NHcVF7rONl6qcaxV3Uuemwawk+7+SJLw==";
+      };
+    };
+    "array-flatten-1.1.1" = {
+      name = "array-flatten";
+      packageName = "array-flatten";
+      version = "1.1.1";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/array-flatten/-/array-flatten-1.1.1.tgz";
+        sha512 = "PCVAQswWemu6UdxsDFFX/+gVeYqKAod3D3UVm91jHwynguOwAvYPhx8nNlM++NqRcK6CxxpUafjmhIdKiHibqg==";
+      };
+    };
+    "base64-js-1.5.1" = {
+      name = "base64-js";
+      packageName = "base64-js";
+      version = "1.5.1";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/base64-js/-/base64-js-1.5.1.tgz";
+        sha512 = "AKpaYlHn8t4SVbOHCy+b5+KKgvR4vrsD8vbvrbiQJps7fKDTkjkDry6ji0rUJjC0kzbNePLwzxq8iypo41qeWA==";
+      };
+    };
+    "better-sqlite3-9.5.0" = {
+      name = "better-sqlite3";
+      packageName = "better-sqlite3";
+      version = "9.5.0";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/better-sqlite3/-/better-sqlite3-9.5.0.tgz";
+        sha512 = "01qVcM4gPNwE+PX7ARNiHINwzVuD6nx0gdldaAAcu+MrzyIAukQ31ZDKEpzRO/CNA9sHpxoTZ8rdjoyAin4dyg==";
+      };
+    };
+    "bindings-1.5.0" = {
+      name = "bindings";
+      packageName = "bindings";
+      version = "1.5.0";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/bindings/-/bindings-1.5.0.tgz";
+        sha512 = "p2q/t/mhvuOj/UeLlV6566GD/guowlr0hHxClI0W9m7MWYkL1F0hLo+0Aexs9HSPCtR1SXQ0TD3MMKrXZajbiQ==";
+      };
+    };
+    "bl-4.1.0" = {
+      name = "bl";
+      packageName = "bl";
+      version = "4.1.0";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/bl/-/bl-4.1.0.tgz";
+        sha512 = "1W07cM9gS6DcLperZfFSj+bWLtaPGSOHWhPiGzXmvVJbRLdG82sH/Kn8EtW1VqWVA54AKf2h5k5BbnIbwF3h6w==";
+      };
+    };
+    "body-parser-1.20.2" = {
+      name = "body-parser";
+      packageName = "body-parser";
+      version = "1.20.2";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/body-parser/-/body-parser-1.20.2.tgz";
+        sha512 = "ml9pReCu3M61kGlqoTm2umSXTlRTuGTx0bfYj+uIUKKYycG5NtSbeetV3faSU6R7ajOPw0g/J1PvK4qNy7s5bA==";
+      };
+    };
+    "buffer-5.7.1" = {
+      name = "buffer";
+      packageName = "buffer";
+      version = "5.7.1";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/buffer/-/buffer-5.7.1.tgz";
+        sha512 = "EHcyIPBQ4BSGlvjB16k5KgAJ27CIsHY/2JBmCRReo48y9rQ3MaUzWX3KVlBa4U7MyX02HdVj0K7C3WaB3ju7FQ==";
+      };
+    };
+    "bytes-3.1.2" = {
+      name = "bytes";
+      packageName = "bytes";
+      version = "3.1.2";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/bytes/-/bytes-3.1.2.tgz";
+        sha512 = "/Nf7TyzTx6S3yRJObOAV7956r8cr2+Oj8AC5dt8wSP3BQAoeX58NoHyCU8P8zGkNXStjTSi6fzO6F0pBdcYbEg==";
+      };
+    };
+    "call-bind-1.0.7" = {
+      name = "call-bind";
+      packageName = "call-bind";
+      version = "1.0.7";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/call-bind/-/call-bind-1.0.7.tgz";
+        sha512 = "GHTSNSYICQ7scH7sZ+M2rFopRoLh8t2bLSW6BbgrtLsahOIB5iyAVJf9GjWK3cYTDaMj4XdBpM1cA6pIS0Kv2w==";
+      };
+    };
+    "chownr-1.1.4" = {
+      name = "chownr";
+      packageName = "chownr";
+      version = "1.1.4";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/chownr/-/chownr-1.1.4.tgz";
+        sha512 = "jJ0bqzaylmJtVnNgzTeSOs8DPavpbYgEr/b0YL8/2GO3xJEhInFmhKMUnEJQjZumK7KXGFhUy89PrsJWlakBVg==";
+      };
+    };
+    "content-disposition-0.5.4" = {
+      name = "content-disposition";
+      packageName = "content-disposition";
+      version = "0.5.4";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/content-disposition/-/content-disposition-0.5.4.tgz";
+        sha512 = "FveZTNuGw04cxlAiWbzi6zTAL/lhehaWbTtgluJh4/E95DqMwTmha3KZN1aAWA8cFIhHzMZUvLevkw5Rqk+tSQ==";
+      };
+    };
+    "content-type-1.0.5" = {
+      name = "content-type";
+      packageName = "content-type";
+      version = "1.0.5";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/content-type/-/content-type-1.0.5.tgz";
+        sha512 = "nTjqfcBFEipKdXCv4YDQWCfmcLZKm81ldF0pAopTvyrFGVbcR6P/VAAd5G7N+0tTr8QqiU0tFadD6FK4NtJwOA==";
+      };
+    };
+    "cookie-0.6.0" = {
+      name = "cookie";
+      packageName = "cookie";
+      version = "0.6.0";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/cookie/-/cookie-0.6.0.tgz";
+        sha512 = "U71cyTamuh1CRNCfpGY6to28lxvNwPG4Guz/EVjgf3Jmzv0vlDp1atT9eS5dDjMYHucpHbWns6Lwf3BKz6svdw==";
+      };
+    };
+    "cookie-signature-1.0.6" = {
+      name = "cookie-signature";
+      packageName = "cookie-signature";
+      version = "1.0.6";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/cookie-signature/-/cookie-signature-1.0.6.tgz";
+        sha512 = "QADzlaHc8icV8I7vbaJXJwod9HWYp8uCqf1xa4OfNu1T7JVxQIrUgOWtHdNDtPiywmFbiS12VjotIXLrKM3orQ==";
+      };
+    };
+    "cors-2.8.5" = {
+      name = "cors";
+      packageName = "cors";
+      version = "2.8.5";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/cors/-/cors-2.8.5.tgz";
+        sha512 = "KIHbLJqu73RGr/hnbrO9uBeixNGuvSQjul/jdFvS/KFSIH1hWVd1ng7zOHx+YrEfInLG7q4n6GHQ9cDtxv/P6g==";
+      };
+    };
+    "debug-2.6.9" = {
+      name = "debug";
+      packageName = "debug";
+      version = "2.6.9";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz";
+        sha512 = "bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==";
+      };
+    };
+    "decompress-response-6.0.0" = {
+      name = "decompress-response";
+      packageName = "decompress-response";
+      version = "6.0.0";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/decompress-response/-/decompress-response-6.0.0.tgz";
+        sha512 = "aW35yZM6Bb/4oJlZncMH2LCoZtJXTRxES17vE3hoRiowU2kWHaJKFkSBDnDR+cm9J+9QhXmREyIfv0pji9ejCQ==";
+      };
+    };
+    "deep-extend-0.6.0" = {
+      name = "deep-extend";
+      packageName = "deep-extend";
+      version = "0.6.0";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/deep-extend/-/deep-extend-0.6.0.tgz";
+        sha512 = "LOHxIOaPYdHlJRtCQfDIVZtfw/ufM8+rVj649RIHzcm/vGwQRXFt6OPqIFWsm2XEMrNIEtWR64sY1LEKD2vAOA==";
+      };
+    };
+    "define-data-property-1.1.4" = {
+      name = "define-data-property";
+      packageName = "define-data-property";
+      version = "1.1.4";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/define-data-property/-/define-data-property-1.1.4.tgz";
+        sha512 = "rBMvIzlpA8v6E+SJZoo++HAYqsLrkg7MSfIinMPFhmkorw7X+dOXVJQs+QT69zGkzMyfDnIMN2Wid1+NbL3T+A==";
+      };
+    };
+    "depd-2.0.0" = {
+      name = "depd";
+      packageName = "depd";
+      version = "2.0.0";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/depd/-/depd-2.0.0.tgz";
+        sha512 = "g7nH6P6dyDioJogAAGprGpCtVImJhpPk/roCzdb3fIh61/s/nPsfR6onyMwkCAR/OlC3yBC0lESvUoQEAssIrw==";
+      };
+    };
+    "destroy-1.2.0" = {
+      name = "destroy";
+      packageName = "destroy";
+      version = "1.2.0";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/destroy/-/destroy-1.2.0.tgz";
+        sha512 = "2sJGJTaXIIaR1w4iJSNoN0hnMY7Gpc/n8D4qSCJw8QqFWXf7cuAgnEHxBpweaVcPevC2l3KpjYCx3NypQQgaJg==";
+      };
+    };
+    "detect-libc-2.0.3" = {
+      name = "detect-libc";
+      packageName = "detect-libc";
+      version = "2.0.3";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/detect-libc/-/detect-libc-2.0.3.tgz";
+        sha512 = "bwy0MGW55bG41VqxxypOsdSdGqLwXPI/focwgTYCFMbdUiBAxLg9CFzG08sz2aqzknwiX7Hkl0bQENjg8iLByw==";
+      };
+    };
+    "ee-first-1.1.1" = {
+      name = "ee-first";
+      packageName = "ee-first";
+      version = "1.1.1";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/ee-first/-/ee-first-1.1.1.tgz";
+        sha512 = "WMwm9LhRUo+WUaRN+vRuETqG89IgZphVSNkdFgeb6sS/E4OrDIN7t48CAewSHXc6C8lefD8KKfr5vY61brQlow==";
+      };
+    };
+    "encodeurl-1.0.2" = {
+      name = "encodeurl";
+      packageName = "encodeurl";
+      version = "1.0.2";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/encodeurl/-/encodeurl-1.0.2.tgz";
+        sha512 = "TPJXq8JqFaVYm2CWmPvnP2Iyo4ZSM7/QKcSmuMLDObfpH5fi7RUGmd/rTDf+rut/saiDiQEeVTNgAmJEdAOx0w==";
+      };
+    };
+    "end-of-stream-1.4.4" = {
+      name = "end-of-stream";
+      packageName = "end-of-stream";
+      version = "1.4.4";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/end-of-stream/-/end-of-stream-1.4.4.tgz";
+        sha512 = "+uw1inIHVPQoaVuHzRyXd21icM+cnt4CzD5rW+NC1wjOUSTOs+Te7FOv7AhN7vS9x/oIyhLP5PR1H+phQAHu5Q==";
+      };
+    };
+    "es-define-property-1.0.0" = {
+      name = "es-define-property";
+      packageName = "es-define-property";
+      version = "1.0.0";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/es-define-property/-/es-define-property-1.0.0.tgz";
+        sha512 = "jxayLKShrEqqzJ0eumQbVhTYQM27CfT1T35+gCgDFoL82JLsXqTJ76zv6A0YLOgEnLUMvLzsDsGIrl8NFpT2gQ==";
+      };
+    };
+    "es-errors-1.3.0" = {
+      name = "es-errors";
+      packageName = "es-errors";
+      version = "1.3.0";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/es-errors/-/es-errors-1.3.0.tgz";
+        sha512 = "Zf5H2Kxt2xjTvbJvP2ZWLEICxA6j+hAmMzIlypy4xcBg1vKVnx89Wy0GbS+kf5cwCVFFzdCFh2XSCFNULS6csw==";
+      };
+    };
+    "escape-html-1.0.3" = {
+      name = "escape-html";
+      packageName = "escape-html";
+      version = "1.0.3";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/escape-html/-/escape-html-1.0.3.tgz";
+        sha512 = "NiSupZ4OeuGwr68lGIeym/ksIZMJodUGOSCZ/FSnTxcrekbvqrgdUxlJOMpijaKZVjAJrWrGs/6Jy8OMuyj9ow==";
+      };
+    };
+    "etag-1.8.1" = {
+      name = "etag";
+      packageName = "etag";
+      version = "1.8.1";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/etag/-/etag-1.8.1.tgz";
+        sha512 = "aIL5Fx7mawVa300al2BnEE4iNvo1qETxLrPI/o05L7z6go7fCw1J6EQmbK4FmJ2AS7kgVF/KEZWufBfdClMcPg==";
+      };
+    };
+    "expand-template-2.0.3" = {
+      name = "expand-template";
+      packageName = "expand-template";
+      version = "2.0.3";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/expand-template/-/expand-template-2.0.3.tgz";
+        sha512 = "XYfuKMvj4O35f/pOXLObndIRvyQ+/+6AhODh+OKWj9S9498pHHn/IMszH+gt0fBCRWMNfk1ZSp5x3AifmnI2vg==";
+      };
+    };
+    "express-4.19.2" = {
+      name = "express";
+      packageName = "express";
+      version = "4.19.2";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/express/-/express-4.19.2.tgz";
+        sha512 = "5T6nhjsT+EOMzuck8JjBHARTHfMht0POzlA60WV2pMD3gyXw2LZnZ+ueGdNxG+0calOJcWKbpFcuzLZ91YWq9Q==";
+      };
+    };
+    "file-uri-to-path-1.0.0" = {
+      name = "file-uri-to-path";
+      packageName = "file-uri-to-path";
+      version = "1.0.0";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/file-uri-to-path/-/file-uri-to-path-1.0.0.tgz";
+        sha512 = "0Zt+s3L7Vf1biwWZ29aARiVYLx7iMGnEUl9x33fbB/j3jR81u/O2LbqK+Bm1CDSNDKVtJ/YjwY7TUd5SkeLQLw==";
+      };
+    };
+    "finalhandler-1.2.0" = {
+      name = "finalhandler";
+      packageName = "finalhandler";
+      version = "1.2.0";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/finalhandler/-/finalhandler-1.2.0.tgz";
+        sha512 = "5uXcUVftlQMFnWC9qu/svkWv3GTd2PfUhK/3PLkYNAe7FbqJMt3515HaxE6eRL74GdsriiwujiawdaB1BpEISg==";
+      };
+    };
+    "forwarded-0.2.0" = {
+      name = "forwarded";
+      packageName = "forwarded";
+      version = "0.2.0";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/forwarded/-/forwarded-0.2.0.tgz";
+        sha512 = "buRG0fpBtRHSTCOASe6hD258tEubFoRLb4ZNA6NxMVHNw2gOcwHo9wyablzMzOA5z9xA9L1KNjk/Nt6MT9aYow==";
+      };
+    };
+    "fresh-0.5.2" = {
+      name = "fresh";
+      packageName = "fresh";
+      version = "0.5.2";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/fresh/-/fresh-0.5.2.tgz";
+        sha512 = "zJ2mQYM18rEFOudeV4GShTGIQ7RbzA7ozbU9I/XBpm7kqgMywgmylMwXHxZJmkVoYkna9d2pVXVXPdYTP9ej8Q==";
+      };
+    };
+    "fs-constants-1.0.0" = {
+      name = "fs-constants";
+      packageName = "fs-constants";
+      version = "1.0.0";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/fs-constants/-/fs-constants-1.0.0.tgz";
+        sha512 = "y6OAwoSIf7FyjMIv94u+b5rdheZEjzR63GTyZJm5qh4Bi+2YgwLCcI/fPFZkL5PSixOt6ZNKm+w+Hfp/Bciwow==";
+      };
+    };
+    "function-bind-1.1.2" = {
+      name = "function-bind";
+      packageName = "function-bind";
+      version = "1.1.2";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/function-bind/-/function-bind-1.1.2.tgz";
+        sha512 = "7XHNxH7qX9xG5mIwxkhumTox/MIRNcOgDrxWsMt2pAr23WHp6MrRlN7FBSFpCpr+oVO0F744iUgR82nJMfG2SA==";
+      };
+    };
+    "get-intrinsic-1.2.4" = {
+      name = "get-intrinsic";
+      packageName = "get-intrinsic";
+      version = "1.2.4";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/get-intrinsic/-/get-intrinsic-1.2.4.tgz";
+        sha512 = "5uYhsJH8VJBTv7oslg4BznJYhDoRI6waYCxMmCdnTrcCrHA/fCFKoTFz2JKKE0HdDFUF7/oQuhzumXJK7paBRQ==";
+      };
+    };
+    "github-from-package-0.0.0" = {
+      name = "github-from-package";
+      packageName = "github-from-package";
+      version = "0.0.0";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/github-from-package/-/github-from-package-0.0.0.tgz";
+        sha512 = "SyHy3T1v2NUXn29OsWdxmK6RwHD+vkj3v8en8AOBZ1wBQ/hCAQ5bAQTD02kW4W9tUp/3Qh6J8r9EvntiyCmOOw==";
+      };
+    };
+    "gopd-1.0.1" = {
+      name = "gopd";
+      packageName = "gopd";
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+      };
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+        sha512 = "/+HmynNravmZ2RCeiIBw9lmM9ZEimJuig04zKpATIl6EKhAw5k0Ma22buCkqoah6pXes0YD3AAg6Wnd5u76zag==";
+      };
+    };
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+      version = "5.0.0";
+      src = fetchurl {
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+        sha512 = "tsU9tODVvhyfkNSvf03E6FAk+z+5cU3lXAzMy6Pv4av2Gt2xA0++fogwC4qo19XuFf6hdxevPuVCSKFuMHJhFA==";
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+      src = fetchurl {
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+        sha512 = "ujeqbceABgwMZxEJnk2HDY2DlnUZ+9oEcb1KzTVfYHio0UE6dG71n60d8D2I4qNvleWrrXpmjpt7vZeF1LnMZQ==";
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+      packageName = "toidentifier";
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+      src = fetchurl {
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+        sha512 = "o5sSPKEkg/DIQNmH43V0/uerLrpzVedkUh8tGNvaeXpfpuwjKenlSox/2O/BTlZUtEe+JG7s5YhEz608PlAHRA==";
+      };
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+      version = "0.6.0";
+      src = fetchurl {
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+        sha512 = "McnNiV1l8RYeY8tBgEpuodCC1mLUdbSN+CYBL7kJsJNInOP8UjDDEwdk6Mw60vdLLrr5NHKZhMAOSrR2NZuQ+w==";
+      };
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+    "type-is-1.6.18" = {
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+      src = fetchurl {
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+        sha512 = "TkRKr9sUTxEH8MdfuCSP7VizJyzRNMjj2J2do2Jr3Kym598JVdEksuzPQCnlFPW4ky9Q+iA+ma9BGm06XQBy8g==";
+      };
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+      packageName = "unpipe";
+      version = "1.0.0";
+      src = fetchurl {
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+        sha512 = "pjy2bYhSsufwWlKwPc+l3cN7+wuJlK6uz0YdJEOlQDbl6jo/YlPi4mb8agUkVC8BF7V8NuzeyPNqRksA3hztKQ==";
+      };
+    };
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+      packageName = "util-deprecate";
+      version = "1.0.2";
+      src = fetchurl {
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+    "utils-merge-1.0.1" = {
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+      packageName = "utils-merge";
+      version = "1.0.1";
+      src = fetchurl {
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+      src = fetchurl {
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+      src = fetchurl {
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+      };
+    };
+    "yallist-4.0.0" = {
+      name = "yallist";
+      packageName = "yallist";
+      version = "4.0.0";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/yallist/-/yallist-4.0.0.tgz";
+        sha512 = "3wdGidZyq5PB084XLES5TpOSRA3wjXAlIWMhum2kRcv/41Sn2emQ0dycQW4uZXLejwKvg6EsvbdlVL+FYEct7A==";
+      };
+    };
+    "yaml-2.4.1" = {
+      name = "yaml";
+      packageName = "yaml";
+      version = "2.4.1";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/yaml/-/yaml-2.4.1.tgz";
+        sha512 = "pIXzoImaqmfOrL7teGUBt/T7ZDnyeGBWyXQBvOVhLkWLN37GXv8NMLK406UY6dS51JfcQHsmcW5cJ441bHg6Lg==";
+      };
+    };
+  };
+  args = {
+    name = "uni-backend";
+    packageName = "uni-backend";
+    version = "1.0.0";
+    src = ./.;
+    dependencies = [
+      sources."accepts-1.3.8"
+      sources."array-flatten-1.1.1"
+      sources."base64-js-1.5.1"
+      sources."better-sqlite3-9.5.0"
+      sources."bindings-1.5.0"
+      sources."bl-4.1.0"
+      sources."body-parser-1.20.2"
+      sources."buffer-5.7.1"
+      sources."bytes-3.1.2"
+      sources."call-bind-1.0.7"
+      sources."chownr-1.1.4"
+      sources."content-disposition-0.5.4"
+      sources."content-type-1.0.5"
+      sources."cookie-0.6.0"
+      sources."cookie-signature-1.0.6"
+      sources."cors-2.8.5"
+      sources."debug-2.6.9"
+      sources."decompress-response-6.0.0"
+      sources."deep-extend-0.6.0"
+      sources."define-data-property-1.1.4"
+      sources."depd-2.0.0"
+      sources."destroy-1.2.0"
+      sources."detect-libc-2.0.3"
+      sources."ee-first-1.1.1"
+      sources."encodeurl-1.0.2"
+      sources."end-of-stream-1.4.4"
+      sources."es-define-property-1.0.0"
+      sources."es-errors-1.3.0"
+      sources."escape-html-1.0.3"
+      sources."etag-1.8.1"
+      sources."expand-template-2.0.3"
+      sources."express-4.19.2"
+      sources."file-uri-to-path-1.0.0"
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+      sources."github-from-package-0.0.0"
+      sources."gopd-1.0.1"
+      sources."has-property-descriptors-1.0.2"
+      sources."has-proto-1.0.3"
+      sources."has-symbols-1.0.3"
+      sources."hasown-2.0.2"
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+      sources."ieee754-1.2.1"
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+      sources."media-typer-0.3.0"
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+      sources."mime-db-1.52.0"
+      sources."mime-types-2.1.35"
+      sources."mimic-response-3.1.0"
+      sources."minimist-1.2.8"
+      sources."mkdirp-classic-0.5.3"
+      sources."ms-2.0.0"
+      sources."napi-build-utils-1.0.2"
+      sources."negotiator-0.6.3"
+      sources."node-abi-3.59.0"
+      sources."object-assign-4.1.1"
+      sources."object-inspect-1.13.1"
+      sources."on-finished-2.4.1"
+      sources."once-1.4.0"
+      sources."parseurl-1.3.3"
+      sources."path-to-regexp-0.1.7"
+      sources."prebuild-install-7.1.2"
+      sources."proxy-addr-2.0.7"
+      sources."pump-3.0.0"
+      sources."qs-6.11.0"
+      sources."range-parser-1.2.1"
+      sources."raw-body-2.5.2"
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+      sources."readable-stream-3.6.2"
+      sources."safe-buffer-5.2.1"
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+      sources."semver-7.6.0"
+      (sources."send-0.18.0" // {
+        dependencies = [
+          sources."ms-2.1.3"
+        ];
+      })
+      sources."serve-static-1.15.0"
+      sources."set-function-length-1.2.2"
+      sources."setprototypeof-1.2.0"
+      sources."side-channel-1.0.6"
+      sources."simple-concat-1.0.1"
+      sources."simple-get-4.0.1"
+      sources."statuses-2.0.1"
+      sources."string_decoder-1.3.0"
+      sources."strip-json-comments-2.0.1"
+      sources."swagger-ui-dist-5.16.0"
+      sources."swagger-ui-express-5.0.0"
+      sources."tar-fs-2.1.1"
+      sources."tar-stream-2.2.0"
+      sources."toidentifier-1.0.1"
+      sources."tunnel-agent-0.6.0"
+      sources."type-is-1.6.18"
+      sources."unpipe-1.0.0"
+      sources."util-deprecate-1.0.2"
+      sources."utils-merge-1.0.1"
+      sources."vary-1.1.2"
+      sources."wrappy-1.0.2"
+      sources."yallist-4.0.0"
+      sources."yaml-2.4.1"
+    ];
+    buildInputs = globalBuildInputs;
+    meta = {
+      description = "Our backend";
+      license = "ISC";
+    };
+    production = true;
+    bypassCache = true;
+    reconstructLock = true;
+  };
+in
+{
+  args = args;
+  sources = sources;
+  tarball = nodeEnv.buildNodeSourceDist args;
+  package = nodeEnv.buildNodePackage args;
+  shell = nodeEnv.buildNodeShell args;
+  nodeDependencies = nodeEnv.buildNodeDependencies (lib.overrideExisting args {
+    src = stdenv.mkDerivation {
+      name = args.name + "-package-json";
+      src = nix-gitignore.gitignoreSourcePure [
+        "*"
+        "!package.json"
+        "!package-lock.json"
+      ] args.src;
+      dontBuild = true;
+      installPhase = "mkdir -p $out; cp -r ./* $out;";
+    };
+  });
+}
diff --git a/package-lock.json b/package-lock.json
index 48aa056..74aca8f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -12,10 +12,126 @@
         "better-sqlite3": "^9.5.0",
         "cors": "^2.8.5",
         "express": "^4.19.2",
+        "express-openapi-validator": "^5.1.6",
         "swagger-ui-express": "^5.0.0",
         "yaml": "^2.4.1"
       }
     },
+    "node_modules/@apidevtools/json-schema-ref-parser": {
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+      "resolved": "https://registry.npmjs.org/@apidevtools/json-schema-ref-parser/-/json-schema-ref-parser-9.1.2.tgz",
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+      "dependencies": {
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+        "@types/json-schema": "^7.0.6",
+        "call-me-maybe": "^1.0.1",
+        "js-yaml": "^4.1.0"
+      }
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+    },
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+      "resolved": "https://registry.npmjs.org/@types/body-parser/-/body-parser-1.19.5.tgz",
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+      "dependencies": {
+        "@types/connect": "*",
+        "@types/node": "*"
+      }
+    },
+    "node_modules/@types/connect": {
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+      "resolved": "https://registry.npmjs.org/@types/connect/-/connect-3.4.38.tgz",
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+      "dependencies": {
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+      }
+    },
+    "node_modules/@types/express": {
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+      "resolved": "https://registry.npmjs.org/@types/express/-/express-4.17.21.tgz",
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+      "dependencies": {
+        "@types/body-parser": "*",
+        "@types/express-serve-static-core": "^4.17.33",
+        "@types/qs": "*",
+        "@types/serve-static": "*"
+      }
+    },
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+      "resolved": "https://registry.npmjs.org/@types/express-serve-static-core/-/express-serve-static-core-4.19.0.tgz",
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+      "dependencies": {
+        "@types/node": "*",
+        "@types/qs": "*",
+        "@types/range-parser": "*",
+        "@types/send": "*"
+      }
+    },
+    "node_modules/@types/http-errors": {
+      "version": "2.0.4",
+      "resolved": "https://registry.npmjs.org/@types/http-errors/-/http-errors-2.0.4.tgz",
+      "integrity": "sha512-D0CFMMtydbJAegzOyHjtiKPLlvnm3iTZyZRSZoLq2mRhDdmLfIWOCYPfQJ4cu2erKghU++QvjcUjp/5h7hESpA=="
+    },
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+    },
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+    },
+    "node_modules/@types/multer": {
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+      "resolved": "https://registry.npmjs.org/@types/multer/-/multer-1.4.11.tgz",
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+      "dependencies": {
+        "@types/express": "*"
+      }
+    },
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+      "dependencies": {
+        "punycode": "^2.1.0"
+      }
+    },
     "node_modules/util-deprecate": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
@@ -1133,6 +1522,14 @@
       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
       "integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ=="
     },
+    "node_modules/xtend": {
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
+      "integrity": "sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ==",
+      "engines": {
+        "node": ">=0.4"
+      }
+    },
     "node_modules/yallist": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/yallist/-/yallist-4.0.0.tgz",
diff --git a/package.json b/package.json
index 133e65b..8d46ace 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,8 @@
   "description": "Our backend",
   "main": "index.js",
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "test": "echo \"Error: no test specified\" && exit 1",
+    "run": "node index.js"
   },
   "author": "",
   "license": "ISC",
@@ -12,6 +13,7 @@
     "better-sqlite3": "^9.5.0",
     "cors": "^2.8.5",
     "express": "^4.19.2",
+    "express-openapi-validator": "^5.1.6",
     "swagger-ui-express": "^5.0.0",
     "yaml": "^2.4.1"
   }
diff --git a/routes/accounts.js b/routes/accounts.js
index 6ca1cb2..3fef5b5 100644
--- a/routes/accounts.js
+++ b/routes/accounts.js
@@ -1,25 +1,47 @@
-const express = require('express');
+const express = require("express");
 const router = express.Router();
 
+const db = require("../dependencies");
+
 router.get("/", (req, res) => {
-    
-})
+    const accs = db.prepare("SELECT * FROM accounts").all();
+    res.send(accs);
+});
 
-
-router.post("/", (req, res) => {
-    res.send(req.params);
-})
+router.post("/", (req, res, next) => {
+    const name = req.body.name;
+    const des = req.body.description;
+    const type = req.body.type;
+    // res.json(req.body.name);
+    res.send({
+        'name': name,
+        'description': des,
+        'type': type
+    })
+    const new_acc = db.prepare(`INSERT INTO accounts (name, qualifiedName, description, type, balance, localBalance) VALUES ('${name}', 'test','${des}', '${type}', 0, 0)`).run()
+    console.log(new_acc);
+});
 
 router.get("/:account", (req, res) => {
-    res.send(req.params);    
-})
+    const acc = db
+          .prepare("SELECT * FROM accounts WHERE account_id = ?")
+          .get(req.params.account);
 
-router.put("/:account", (req, res) => {
-    
-})
+    if (acc == undefined) {
+        res.status(404).send({
+            code: 404,
+            message: "Account not Found",
+            additionalPropl: {}
+        });
+    } else {
+        res.send(acc);
+    }
+});
 
-router.delete("/:account", (req, res) => {
-    
-})
+
+
+router.put("/:account", (req, res) => {});
+
+router.delete("/:account", (req, res) => {});
 
 module.exports = router;
diff --git a/sql/create_account.sql b/sql/create_account.sql
index 3f384e7..476ca46 100644
--- a/sql/create_account.sql
+++ b/sql/create_account.sql
@@ -1,11 +1,2 @@
-INSERT INTO accounts( 
-       name,
-       qualifiedName,
-       description,
-       type,
-       balance,
-       localBalance,
-)
-VALUES (
-       'meins', 'Aktiva:meins', 'Mein Geld lol', 'normal', 0.0, 0.0       
-)
+INSERT INTO accounts (name, qualifiedName, description, type, balance, localBalance,)
+    VALUES ('meins', 'Aktiva:meins', 'Mein Geld lol', 'normal', 0.0, 0.0)
diff --git a/sql/create_db.sql b/sql/create_db.sql
index da6135d..3301c44 100644
--- a/sql/create_db.sql
+++ b/sql/create_db.sql
@@ -1,26 +1,25 @@
 CREATE TABLE accounts (
-       account_id INTEGER PRIMARY KEY,
-       name TEXT NOT NULL,
-       qualifiedName TEXT NOT NULL,
-       description TEXT NOT NULL,
-       type TEXT NOT NULL,
-       balance FLOAT NOT NULL,
-       localBalance FLOAT NOT NULL
+    account_id integer PRIMARY KEY,
+    name text NOT NULL,
+    qualifiedName text NOT NULL,
+    description text NOT NULL,
+    type TEXT NOT NULL,
+    balance float NOT NULL,
+    localBalance float NOT NULL
 );
 
 CREATE TABLE transactions (
-       transaction_id INTEGER PRIMARY KEY,
-       postingDate TEXT NOT NULL,
-       valueDate TEXT,
-       title TEXT NOT NULL
+    transaction_id integer PRIMARY KEY,
+    postingDate text NOT NULL,
+    valueDate text,
+    title text NOT NULL
 );
 
 CREATE TABLE transaction_entries (
-       transaction_id INT,
-       account_id INT,
-       amount FLOAT,
-       label TEXT,
-       FOREIGN KEY (transaction_id) REFERENCES transactions(transaction_id)
-       FOREIGN KEY (account_id) REFERENCES account(account_id)
-       PRIMARY KEY (transaction_id, account_id)
+    transaction_id int,
+    account_id int,
+    amount float,
+    label text,
+    FOREIGN KEY (transaction_id) REFERENCES transactions (transaction_id) FOREIGN KEY (account_id) REFERENCES account (account_id) PRIMARY KEY (transaction_id, account_id)
 );
+
diff --git a/test/create_account.hurl b/test/create_account.hurl
new file mode 100644
index 0000000..9257995
--- /dev/null
+++ b/test/create_account.hurl
@@ -0,0 +1,6 @@
+POST http://localhost:3000/api/v1/accounts/
+{
+  "name": "Aktiva",
+  "description": "Girokonto bei der Musterbank eG",
+  "type": "default"
+}