fix: infinite recursion

specialArgs (even though from submodules) cannot be obtained from 
within the module system

src/mkFlake/default.nix

@@ -2,10 +2,12 @@
 
 { self, inputs, ... } @ args:
 let
+  # avoid infinite recursions w.r.t. using self or inputs in imports
+  injectedDeps' = injectedDeps // { inherit (args) self inputs; };
 
-  options' = import ./options.nix injectedDeps;
-  fupAdapter' = import ./fup-adapter.nix injectedDeps;
-  defaultOutputsBuilder' = import ./outputs-builder.nix injectedDeps;
+  options' = import ./options.nix injectedDeps';
+  fupAdapter' = import ./fup-adapter.nix injectedDeps';
+  defaultOutputsBuilder' = import ./outputs-builder.nix injectedDeps';
 
   evaled = lib.evalModules {
     modules = [

src/mkFlake/fup-adapter.nix

@@ -89,7 +89,8 @@ lib.systemFlake (lib.mergeAny
       # since we can't detect overlays owned by self
       # we have to filter out ones exported by the inputs
       # optimally we would want a solution for NixOS/nix#4740
-      inherit (config.self) pkgs inputs;
+      inherit (config.self) pkgs;
+      inherit (config) inputs;
     };
 
     outputsBuilder = channels:

src/mkFlake/options.nix

@@ -1,5 +1,5 @@
 # constructor dependencies
-{ lib, devshell, ... }:
+{ lib, devshell, self, inputs, ... }:
 
 with lib;
 
@@ -321,10 +321,7 @@ let
   };
 
   nixosType = with types; submoduleWith {
-    specialArgs = {
-      self = config.self;
-      inputs = config.inputs;
-    };
+    specialArgs = { inherit self inputs; };
     modules = [
       { options = (hostsOpt "nixos") // (hostDefaultsOpt "nixos") // importablesOpt; }
       legacyImportablesMod
@@ -332,10 +329,7 @@ let
   };
 
   homeType = with types; submoduleWith {
-    specialArgs = {
-      self = config.self;
-      inputs = config.inputs;
-    };
+    specialArgs = { inherit self inputs; };
     modules = [
       { options = externalModulesOpt // (exportedModulesOpt "home") // importablesOpt // usersOpt; }
       legacyImportablesMod
@@ -343,10 +337,7 @@ let
   };
 
   devshellType = with types; submoduleWith {
-    specialArgs = {
-      self = config.self;
-      inputs = config.inputs;
-    };
+    specialArgs = { inherit self inputs; };
     modules = [
       { options = externalModulesOpt // exportedDevshellModulesOpt; }
     ];

src/mkFlake/outputs-builder.nix

@@ -1,5 +1,5 @@
 # constructor dependencies
-{ lib, deploy, devshell, home-manager }:
+{ lib, deploy, devshell, home-manager, ... }:
 config: channels:
 let