diff --git a/src/fetchers/combined-fetcher.nix b/src/fetchers/combined-fetcher.nix
index 410b322e00..ef8e0f30f9 100644
--- a/src/fetchers/combined-fetcher.nix
+++ b/src/fetchers/combined-fetcher.nix
@@ -53,7 +53,7 @@
                 // {
                   isOriginal = false;
                   outPath = let
-                    sanitizedName = utils.sanitizeDerivationName name;
+                    sanitizedName = l.strings.sanitizeDerivationName name;
                   in "${sanitizedName}/${version}/${fetched.name}";
                 }
               # handle already extracted sources
@@ -63,7 +63,7 @@
                 // {
                   isOriginal = true;
                   outPath = let
-                    sanitizedName = utils.sanitizeDerivationName name;
+                    sanitizedName = l.strings.sanitizeDerivationName name;
                   in "${sanitizedName}/${version}/${fetched.original.name}";
                 }
               # handle path sources
@@ -219,7 +219,7 @@ in {
           then
             utils.extractSource {
               source = "${FODAllSources}/${FODArgsAll."${name}"."${version}".outPath}";
-              name = dlib.sanitizeDerivationName name;
+              name = l.strings.sanitizeDerivationName name;
             }
           else "${FODAllSources}/${FODArgsAll."${name}"."${version}".outPath}"
         else defaultFetched."${name}"."${version}")
diff --git a/src/lib/default.nix b/src/lib/default.nix
index 16fb7b3437..de5fb9b67b 100644
--- a/src/lib/default.nix
+++ b/src/lib/default.nix
@@ -26,7 +26,6 @@
       recursiveUpdateUntilDepth
       simpleTranslate2
       translators
-      sanitizeDerivationName
       sanitizePath
       sanitizeRelativePath
       subsystems
@@ -280,9 +279,6 @@
   recursiveUpdateUntilDepth = depth: lhs: rhs:
     lib.recursiveUpdateUntil (path: _: _: (l.length path) > depth) lhs rhs;
 
-  sanitizeDerivationName = name:
-    lib.replaceStrings ["@" "/"] ["__at__" "__slash__"] name;
-
   sanitizeRelativePath = path:
     l.removePrefix "/" (l.toString (l.toPath "/${path}"));
 
diff --git a/src/subsystems/debian/translators/debian-binary/default.nix b/src/subsystems/debian/translators/debian-binary/default.nix
index 44dc6b56f7..4000219940 100644
--- a/src/subsystems/debian/translators/debian-binary/default.nix
+++ b/src/subsystems/debian/translators/debian-binary/default.nix
@@ -21,7 +21,7 @@ in {
   translateBin = {
     # dream2nix utils
     utils,
-    # nixpkgs dependenies
+    # nixpkgs dependencies
     bash,
     coreutils,
     jq,
diff --git a/src/subsystems/haskell/builders/simple-haskell/default.nix b/src/subsystems/haskell/builders/simple-haskell/default.nix
index 2f8a4c84f3..bb6a8fbf17 100644
--- a/src/subsystems/haskell/builders/simple-haskell/default.nix
+++ b/src/subsystems/haskell/builders/simple-haskell/default.nix
@@ -64,16 +64,14 @@ in {
         })
       subsystemAttrs.cabalHashes or {};
 
-    # the main package
-    defaultPackage = allPackages."${defaultPackageName}"."${defaultPackageVersion}";
-
     # packages to export
     packages =
-      lib.mapAttrs
-      (name: version: {
-        "${version}" = allPackages.${name}.${version};
-      })
-      args.packages;
+      {default = packages.${defaultPackageName};}
+      // (
+        lib.mapAttrs
+        (name: version: {"${version}" = allPackages.${name}.${version};})
+        args.packages
+      );
 
     # manage packages in attrset to prevent duplicated evaluation
     allPackages =
@@ -119,7 +117,7 @@ in {
     # Generates a derivation for a specific package name + version
     makeOnePackage = name: version: let
       pkg = compiler.mkDerivation (rec {
-          pname = utils.sanitizeDerivationName name;
+          pname = l.strings.sanitizeDerivationName name;
           inherit version;
           license = null;
 
@@ -173,6 +171,6 @@ in {
       # apply packageOverrides to current derivation
       produceDerivation name pkg;
   in {
-    inherit defaultPackage packages;
+    inherit packages;
   };
 }
diff --git a/src/subsystems/nodejs/builders/granular-nodejs/default.nix b/src/subsystems/nodejs/builders/granular-nodejs/default.nix
index 7dd4ca7d6a..c9a8f4a535 100644
--- a/src/subsystems/nodejs/builders/granular-nodejs/default.nix
+++ b/src/subsystems/nodejs/builders/granular-nodejs/default.nix
@@ -75,8 +75,6 @@
           })
           args.packages);
 
-      devShell = devShells.default;
-
       devShells =
         {default = devShells.${defaultPackageName};}
         // (
diff --git a/src/subsystems/nodejs/discoverers/default/default.nix b/src/subsystems/nodejs/discoverers/default/default.nix
index a2fe5bc90b..805f3d7a05 100644
--- a/src/subsystems/nodejs/discoverers/default/default.nix
+++ b/src/subsystems/nodejs/discoverers/default/default.nix
@@ -35,9 +35,8 @@
   in
     childrenRemoved;
 
-  getTranslatorNames = path: let
-    nodes = l.readDir path;
-    packageJson = l.fromJSON (l.readFile "${path}/package.json");
+  getTranslatorNames = tree: let
+    packageJson = tree.files."package.json".jsonContent;
     translators =
       # if the package has no dependencies we use the
       # package-lock translator with `packageLock = null`
@@ -47,8 +46,8 @@
         && (packageJson.workspaces or [] == [])
       then ["package-lock"]
       else
-        l.optionals (nodes ? "package-lock.json") ["package-lock"]
-        ++ l.optionals (nodes ? "yarn.lock") ["yarn-lock"]
+        l.optionals (tree.files ? "package-lock.json") ["package-lock"]
+        ++ l.optionals (tree.files ? "yarn.lock") ["yarn-lock"]
         ++ ["package-json"];
   in
     translators;
@@ -166,7 +165,7 @@
         inherit subsystem;
         inherit (tree) relPath;
         name = tree.files."package.json".jsonContent.name or tree.relPath;
-        translators = getTranslatorNames tree.fullPath;
+        translators = getTranslatorNames tree;
         subsystemInfo = l.optionalAttrs (workspaces != []) {
           workspaces =
             l.map
diff --git a/src/subsystems/nodejs/translators/npm/default.nix b/src/subsystems/nodejs/translators/npm/default.nix
index 5cc1af2181..157648c9e6 100644
--- a/src/subsystems/nodejs/translators/npm/default.nix
+++ b/src/subsystems/nodejs/translators/npm/default.nix
@@ -12,7 +12,7 @@
     apps,
     subsystems,
     utils,
-    # nixpkgs dependenies
+    # nixpkgs dependencies
     bash,
     coreutils,
     git,
diff --git a/src/subsystems/nodejs/translators/package-json/default.nix b/src/subsystems/nodejs/translators/package-json/default.nix
index 8c971823c0..ec8cfc3e2a 100644
--- a/src/subsystems/nodejs/translators/package-json/default.nix
+++ b/src/subsystems/nodejs/translators/package-json/default.nix
@@ -11,7 +11,7 @@
     # dream2nix utils
     subsystems,
     utils,
-    # nixpkgs dependenies
+    # nixpkgs dependencies
     bash,
     coreutils,
     git,
diff --git a/src/subsystems/php/translators/composer-json/default.nix b/src/subsystems/php/translators/composer-json/default.nix
index 1bda4dcd38..27fd4b3ff0 100644
--- a/src/subsystems/php/translators/composer-json/default.nix
+++ b/src/subsystems/php/translators/composer-json/default.nix
@@ -20,7 +20,7 @@
     # dream2nix utils
     subsystems,
     utils,
-    # nixpkgs dependenies
+    # nixpkgs dependencies
     bash,
     coreutils,
     moreutils,
diff --git a/src/subsystems/php/translators/packagist/default.nix b/src/subsystems/php/translators/packagist/default.nix
index 64df2e224c..1eabcf318f 100644
--- a/src/subsystems/php/translators/packagist/default.nix
+++ b/src/subsystems/php/translators/packagist/default.nix
@@ -12,7 +12,7 @@
     apps,
     subsystems,
     utils,
-    # nixpkgs dependenies
+    # nixpkgs dependencies
     coreutils,
     curl,
     jq,
diff --git a/src/subsystems/python/builders/simple-python/default.nix b/src/subsystems/python/builders/simple-python/default.nix
index 056b5d1af4..fd76c6b328 100644
--- a/src/subsystems/python/builders/simple-python/default.nix
+++ b/src/subsystems/python/builders/simple-python/default.nix
@@ -80,6 +80,5 @@
   in {
     packages.${defaultPackageName}.${defaultPackageVersion} = package;
     devShells.${defaultPackageName} = devShell;
-    inherit devShell;
   };
 }
diff --git a/src/subsystems/rust/translators/cargo-toml/default.nix b/src/subsystems/rust/translators/cargo-toml/default.nix
index 1b08cbee18..ea358f1343 100644
--- a/src/subsystems/rust/translators/cargo-toml/default.nix
+++ b/src/subsystems/rust/translators/cargo-toml/default.nix
@@ -11,7 +11,7 @@
     # dream2nix utils
     subsystems,
     utils,
-    # nixpkgs dependenies
+    # nixpkgs dependencies
     coreutils,
     jq,
     rustPlatform,
diff --git a/src/subsystems/rust/translators/crates-io/default.nix b/src/subsystems/rust/translators/crates-io/default.nix
index a8ea9f9fc2..c2a0c10377 100644
--- a/src/subsystems/rust/translators/crates-io/default.nix
+++ b/src/subsystems/rust/translators/crates-io/default.nix
@@ -12,7 +12,7 @@
     apps,
     subsystems,
     utils,
-    # nixpkgs dependenies
+    # nixpkgs dependencies
     coreutils,
     curl,
     gnutar,
diff --git a/src/templates/translators/impure.nix b/src/templates/translators/impure.nix
index 74edcae73e..6be0e464dd 100644
--- a/src/templates/translators/impure.nix
+++ b/src/templates/translators/impure.nix
@@ -43,7 +43,7 @@ in {
   translateBin = {
     # dream2nix utils
     utils,
-    # nixpkgs dependenies
+    # nixpkgs dependencies
     bash,
     coreutils,
     jq,
diff --git a/src/templates/translators/pure.nix b/src/templates/translators/pure.nix
index 63197fb2f5..0af133a76d 100644
--- a/src/templates/translators/pure.nix
+++ b/src/templates/translators/pure.nix
@@ -56,26 +56,24 @@ in
       /*
         A list of projects returned by `discoverProjects`
         Example:
-          [
-            {
-              "dreamLockPath": "packages/optimism/dream-lock.json",
-              "name": "optimism",
-              "relPath": "",
-              "subsystem": "nodejs",
-              "subsystemInfo": {
-                "workspaces": [
-                  "packages/common-ts",
-                  "packages/contracts",
-                  "packages/core-utils",
-                ]
-              },
-              "translator": "yarn-lock",
-              "translators": [
-                "yarn-lock",
-                "package-json"
+          {
+            "dreamLockPath": "packages/optimism/dream-lock.json",
+            "name": "optimism",
+            "relPath": "",
+            "subsystem": "nodejs",
+            "subsystemInfo": {
+              "workspaces": [
+                "packages/common-ts",
+                "packages/contracts",
+                "packages/core-utils",
               ]
-            }
-          ]
+            },
+            "translator": "yarn-lock",
+            "translators": [
+              "yarn-lock",
+              "package-json"
+            ]
+          }
       */
       project,
 
diff --git a/src/utils/default.nix b/src/utils/default.nix
index f06ecd026e..05a0d4be94 100644
--- a/src/utils/default.nix
+++ b/src/utils/default.nix
@@ -65,7 +65,6 @@ in
       parseGitUrl
       readTextFile
       recursiveUpdateUntilDepth
-      sanitizeDerivationName
       traceJ
       ;