Trying to fix mosh

base.nix

@@ -16,6 +16,7 @@
     #boot.kernelPackages = pkgs.linuxPackages_latest;
 
     services.openssh.enable = true;
+    programs.mosh.enable = true;
 
 
 }

flake.nix

@@ -19,6 +19,7 @@
   outputs = { self, home-manager, nixpkgs, neovim-nightly-overlay, nur, ... }@inputs:
     let
       utils = import ./utils.nix { inherit nixpkgs home-manager inputs; };
+      pkgs = import nixpkgs {};
     in
     with utils;
     {
@@ -30,6 +31,8 @@
         (builtins.attrNames (builtins.readDir ./modules)));
 
       nixosConfigurations = builtins.mapAttrs (name: value: (mkMachine name value self.nixosModules)) (importConfig ./machines);
+      
+      #legacyPackages."x86_64-linux"."mosh" = import ./packages/mosh/default.nix;
 
 
     };

machines/newton.nix

@@ -65,7 +65,6 @@ in
 
 
 
-  programs.mosh.enable = true;
 
   programs.fish.enable = true;
   users.defaultUserShell = pkgs.fish;

packages/mosh/default.nix

@@ -0,0 +1,76 @@
+#{ lib, stdenv, fetchFromGithub, fetchpatch, zlib, protobuf, ncurses, pkg-config
+#, makeWrapper, perlPackages, openssl, autoreconfHook, openssh, bash-completion
+#, withUtempter ? stdenv.isLinux, libutempter }:
+
+stdenv.mkDerivation rec {
+  pname = "mosh";
+  version = "1.3.2";
+
+  src = fetchFromGitHub {
+    owner = "mobile-shell";
+    repo = pname;
+    rev = "378dfa6aa5778cf168646ada7f52b6f4a8ec8e41"; 
+    sha256 = "05hjhlp6lk8yjcy59zywpf0r6s0h0b9zxq0lw66dh9x8vxrhaq6s";
+  };
+
+  nativeBuildInputs = [ autoreconfHook pkg-config makeWrapper ];
+  buildInputs = [ protobuf ncurses zlib openssl bash-completion ]
+    ++ (with perlPackages; [ perl IOTty ])
+    ++ lib.optional withUtempter libutempter;
+
+  enableParallelBuilding = true;
+
+  patches = [
+    ./ssh_path.patch
+    ./mosh-client_path.patch
+    ./utempter_path.patch
+    # Fix w/c++17, ::bind vs std::bind
+    (fetchpatch {
+      url = "https://github.com/mobile-shell/mosh/commit/e5f8a826ef9ff5da4cfce3bb8151f9526ec19db0.patch";
+      sha256 = "15518rb0r5w1zn4s6981bf1sz6ins6gpn2saizfzhmr13hw4gmhm";
+    })
+    # Fix build with bash-completion 2.10
+    ./bash_completion_datadir.patch
+  ];
+
+  postPatch = ''
+    # Fix build with Xcode 12.5 toolchain/case-insensitive filesystems
+    # Backport of https://github.com/mobile-shell/mosh/commit/12199114fe4234f791ef4c306163901643b40538;
+    # remove on next upstream release.
+    patch -p0 < ${fetchpatch {
+      url = "https://raw.githubusercontent.com/macports/macports-ports/70ca3f65e622c17582fd938602d800157ed951c3/net/mosh/files/patch-version-subdir.diff";
+      sha256 = "1yyh6d07y9zbdx4fb0r56zkq9nd9knwzj22v4dfi55k4k42qxapd";
+    }}
+
+    substituteInPlace scripts/mosh.pl \
+      --subst-var-by ssh "${openssh}/bin/ssh" \
+      --subst-var-by mosh-client "$out/bin/mosh-client"
+  '';
+
+  configureFlags = [ "--enable-completion" ]
+    ++ lib.optional withUtempter "--with-utempter";
+
+  postInstall = ''
+      wrapProgram $out/bin/mosh --prefix PERL5LIB : $PERL5LIB
+  '';
+
+  CXXFLAGS = lib.optionalString stdenv.cc.isClang "-std=c++11";
+
+  meta = with lib; {
+    homepage = "https://mosh.org/";
+    description = "Mobile shell (ssh replacement)";
+    longDescription = ''
+      Remote terminal application that allows roaming, supports intermittent
+      connectivity, and provides intelligent local echo and line editing of
+      user keystrokes.
+
+      Mosh is a replacement for SSH. It's more robust and responsive,
+      especially over Wi-Fi, cellular, and long-distance links.
+    '';
+    license = licenses.gpl3Plus;
+    maintainers = with maintainers; [ viric SuperSandro2000 ];
+    platforms = platforms.unix;
+  };
+}
+
+

utils.nix

@@ -19,6 +19,22 @@ in
         home-manager.useUserPackages = true;
         nixpkgs.overlays = [
           inputs.neovim-nightly-overlay.overlay
+          (final: prev:
+            {
+              mosh = prev.mosh.overrideAttrs (old: {
+                patches = [];
+                postPatch = '''';
+                buildInputs = with prev; [ protobuf ncurses zlib openssl ]
+                  ++ (with perlPackages; [ perl IOTty ])
+                  ++ lib.optional true libutempter;
+                src = prev.fetchFromGitHub {
+                  owner = "mobile-shell";
+                  repo = "mosh";
+                  rev = "378dfa6aa5778cf168646ada7f52b6f4a8ec8e41";
+                  sha256 = "LJssBMrICVgaZtTvZTO6bYMFO4fQ330lIUkWzDSyf7o=";
+                };
+              });
+            })
         ];
       }
     ];