Actually add home manager config

home/modules/applications/emacs/default.nix

@@ -0,0 +1,69 @@
+{ config, lib, pkgs, ... }:
+
+let
+  emacs = pkgs.emacs29;
+  doomSync = (let
+    git = pkgs.git;
+  in ''
+    export PATH=${emacs}/bin:${git}/bin:$PATH
+    ${config.xdg.configHome}/emacs/bin/doom sync -u -j $((`nproc`/4*3))
+  '');
+in {
+  home.packages = [
+    pkgs.emacs-all-the-icons-fonts
+    pkgs.fontconfig
+    pkgs.graphviz
+    pkgs.isort
+    pkgs.nerdfonts
+    pkgs.nil # nix lsp language server
+    pkgs.nixfmt-rfc-style
+    (pkgs.ripgrep.override {withPCRE2 = true;})
+    pkgs.pipenv
+    pkgs.poetry
+    pkgs.python3
+  ];
+
+  fonts.fontconfig.enable = true;
+
+  home.file = {
+    ".config/emacs" = {
+      source = fetchGit {
+        url = "https://github.com/doomemacs/doomemacs.git";
+        # When updating me, remember to run `doom sync`
+        rev = "36e7aaa619342eff61b1daf3ac664f94d5272db7";
+      };
+      # We need to use recursive mode here or else doom fails to sync for
+      # some reason related to the permissions on the synced path. I'm not
+      # quite sure of everything that's going on here.
+      recursive = true;
+
+      # Because `recursive = true` will cause this to sync every single
+      # activation, we turn this off here.
+      #
+      # There's probably a way we could do better detection of this within
+      # our onChange shell?
+      #
+      # onChange = doomSync;
+    };
+  };
+
+  home.sessionVariables = {
+    DOOMLOCALDIR = "${config.xdg.dataHome}/doom";
+    EDITOR = "emacs -nw";
+  };
+
+  home.sessionPath = [
+    "${config.xdg.configHome}/emacs/bin"
+  ];
+
+  programs.emacs = {
+    enable = true;
+    package = emacs;
+  };
+
+  xdg.configFile."doom" = {
+    source = ./doom;
+    # Sync doom if we updated the config
+    onChange = doomSync;
+  };
+}

home/modules/applications/nextcloud-talk-desktop/package.nix

@@ -0,0 +1,79 @@
+{ lib
+, stdenv
+, fetchzip
+, autoPatchelfHook
+
+, nss
+, cairo
+, xorg
+, libxkbcommon
+, alsa-lib
+, at-spi2-core
+, mesa
+, pango
+, libdrm
+, vivaldi-ffmpeg-codecs
+, gtk3
+, libGL
+, libglvnd
+, systemd
+}:
+
+stdenv.mkDerivation (finalAttrs: {
+  pname = "nextcloud-talk-desktop";
+  version = "0.29.0";
+
+  # Building from source would require building also building Server and Talk components
+  # See https://github.com/nextcloud/talk-desktop?tab=readme-ov-file#%EF%B8%8F-prerequisites
+  src = fetchzip {
+    url = "https://github.com/nextcloud-releases/talk-desktop/releases/download/v${finalAttrs.version}/Nextcloud.Talk-linux-x64-${finalAttrs.version}.zip";
+    hash = "sha256-fBIeNv8tfrVTFExLQDBPhIazvbsJ7a76+W9G0cuQDlw=";
+    stripRoot = false;
+  };
+
+  nativeBuildInputs = [ autoPatchelfHook ];
+
+  buildInputs = [
+    nss
+    cairo
+    alsa-lib
+    at-spi2-core
+    pango
+    libdrm
+    libxkbcommon
+    gtk3
+    vivaldi-ffmpeg-codecs
+    mesa
+    libGL
+    libglvnd
+  ] ++ (with xorg; [libX11 libXcomposite libXdamage libXrandr libXfixes libXcursor]);
+
+  # Required to launch the application and proceed past the zygote_linux fork() process
+  # Fixes `Zygote could not fork`
+  runtimeDependencies = [ systemd ];
+
+  preInstall = ''
+    mkdir -p $out/bin
+    mkdir -p $out/opt
+
+    cp -r $src/* $out/opt/
+  '';
+
+  installPhase = ''
+    runHook preInstall
+
+    # Link the application in $out/bin away from contents of `preInstall`
+    ln -s "$out/opt/Nextcloud Talk-linux-x64/Nextcloud Talk" $out/bin/${finalAttrs.pname}
+
+    runHook postInstall
+  '';
+
+  meta = with lib; {
+    description = "Nextcloud Talk Desktop Client Preview";
+    homepage = "https://github.com/nextcloud/talk-desktop";
+    changelog = "https://github.com/nextcloud/talk-desktop/blob/${finalAttrs.version}/CHANGELOG.md";
+    license = licenses.agpl3Only;
+    maintainers = with maintainers; [ kashw2 ];
+    mainProgram = finalAttrs.pname;
+  };
+})