Attempt to fix bad file descriptor.

users/kczulko/hls-tactics-plugin.nix

@@ -0,0 +1,30 @@
+{ mkDerivation, aeson, base, containers, deepseq, directory, extra
+     , filepath, fingertree, generic-lens, ghc, ghc-boot-th
+     , ghc-exactprint, ghc-source-gen, ghcide, hls-graph, hls-plugin-api
+     , hls-test-utils, hspec, hspec-discover, hspec-expectations
+     , hyphenation, lens, lsp, lsp-types, megaparsec, mtl
+     , parser-combinators, prettyprinter, QuickCheck, refinery, retrie
+     , syb, tasty-hspec, tasty-hunit, text, transformers, unagi-chan
+     , unordered-containers
+     }:
+     mkDerivation {
+       pname = "hls-tactics-plugin";
+       version = "1.5.0.0";
+       sha256 = "0bwjkj9canxr2njjica9nbl0lmlyqvyj6ybrx2xdk533rajxbnpf";
+       libraryHaskellDepends = [
+         aeson base containers deepseq directory extra filepath fingertree
+         generic-lens ghc ghc-boot-th ghc-exactprint ghc-source-gen ghcide
+         hls-graph hls-plugin-api hyphenation lens lsp megaparsec mtl
+         parser-combinators prettyprinter refinery retrie syb text
+         transformers unagi-chan unordered-containers
+       ];
+       testHaskellDepends = [
+         aeson base containers deepseq directory filepath ghc ghcide
+         hls-plugin-api hls-test-utils hspec hspec-expectations lens
+         lsp-types mtl QuickCheck tasty-hspec tasty-hunit text
+       ];
+       testToolDepends = [ hspec-discover ];
+       description = "Wingman plugin for Haskell Language Server";
+       doCheck = false;
+       license = "fdsadf";
+     }

users/kczulko/implicit-hie-cradle.nix

@@ -0,0 +1,18 @@
+{ mkDerivation, base, base16-bytestring, bytestring, containers
+, directory, extra, filepath, hie-bios, hslogger, implicit-hie
+, process, temporary, text, time, transformers, unix-compat
+, unordered-containers, vector, yaml
+}:
+mkDerivation {
+  pname = "implicit-hie-cradle";
+  version = "0.4.0.2";
+  sha256 = "0mll3bp2z2nz7d1816nzq9i4hnpkcd9rq2zd4gnils79y8lnwap4";
+  libraryHaskellDepends = [
+    base base16-bytestring bytestring containers directory extra
+    filepath hie-bios hslogger implicit-hie process temporary text time
+    transformers unix-compat unordered-containers vector yaml
+  ];
+  testHaskellDepends = [ base ];
+  description = "Auto generate hie-bios cradles";
+  license = "blablabla";
+}

users/kczulko/user-profile.nix

@@ -1,9 +1,23 @@
 {pkgs,home-manager,...}:
 let
 
+  hpOverlay = self: super: {
+    haskellPackages = super.haskellPackages.override {
+      overrides = haskellSelf: haskellSuper: {
+
+        hls-tactics-plugin = haskellSuper.callPackage ./hls-tactics-plugin.nix {};
+
+        implicit-hie-cradle = haskellSuper.callPackage ./implicit-hie-cradle.nix {};
+      };
+    };
+  };
+
   unstable = import (
     fetchTarball https://github.com/NixOS/nixpkgs/archive/nixos-unstable.tar.gz
-    ){ config = { allowUnfree = true; }; };
+  ){
+    config = { allowUnfree = true; };
+    overlays = [ hpOverlay ];
+  };
 
   secrets        = import ../../secrets.nix;
   customizations = import ./customizations/all.nix { inherit pkgs; };