{
  emacs,
  eself,
  esuper,
  git,
  makeWrapper,
}:
{
  # Doom uses using emacs-straight/auctex, which still contains parts of
  # upstream's build system but does not contain all .in files, resulting
  # in a failed build if we attempt to use upstream's configure..
  auctex = esuper.trivialBuild {
    pname = "auctex";
    version = "1";
    meta = {
      description = "build auctex from emacs-straight for Doom";
    };
    # TODO: figure out why this is necessary (there may be a better
    # solution).
    preBuild = ''
      export HOME=$(mktemp -d)
    '';
  };
  # Doom lets Straight provide org-autoloads.el as an alternative for
  # org-loaddefs.el, and manually generates org-version.el.
  # I currently run Org's build system.
  # TODO: pass in ORGVERSION / GITVERSION (or provide a .git dir).
  org = esuper.trivialBuild {
    pname = "org";
    version = "1";
    meta = {
      description = "build org-mode from emacs-straight repo for Doom";
    };
    buildInputs = [ ];
    nativeBuildInputs = [ emacs makeWrapper ];
    # XXX this sticks stuff in $out/emacs/etc/org (datadir in default.mk)
    # that probably needs to go somewhere else.
    # Possibly same for $out/share/info/.
    configurePhase = ''
      echo "prefix = $out" > local.mk
      echo "lispdir = $out/share/emacs/site-lisp/org" >> local.mk
      make config
    '';
    buildPhase = ''
      runHook preBuild
      make
      runHook postBuild
    '';
    installPhase = ''
      runHook preInstall
      make install
      runHook postInstall
    '';
  };
  org-contrib = esuper.trivialBuild {
    pname = "org-contrib";
    version = "1";
    meta = {
      description = "build org-contrib from emacsmirror for Doom";
    };
    # Apply upstream fix for hard dependency on ess-custom.
    # Straight just seems to ignore the byte-compilation failure(?).
    patches = [ ./org-contrib-ob-stata-ess-optional.patch ];
    # HACK around sources being in lisp/, which trivialBuild does not
    # handle. Setting sourceDir would probably be more sane, but we
    # need the original one for a patch to apply.
    postPatch = ''
      cd lisp
    '';
  };
  sln-mode = esuper.trivialBuild {
    pname = "sln-mode";
    version = "1";
    meta = {
      description = "build sln-mode for doom with manual dependencies";
    };
    # Straight uses a recipe from el-get that specifiecs the font-lock-ext
    # dependency.
    buildInputs = [ eself.font-lock-ext ];
  };
  # Straight checks for git's presence at import time.
  # We could probably get by with feeding it /bin/true or similar,
  # but it seems not worth the risk.
  straight = esuper.trivialBuild {
    pname = "straight";
    version = "1";
    meta = {
      description = "build straight with Git dependency added for Doom";
    };
    nativeBuildInputs = [ git ];
  };
  # Nix uses a Melpa recipe that assumes the upstream CMake repo layout.
  # Doom uses emacsmirror and sets :files (:defaults "*").
  cmake-mode = esuper.trivialBuild {
    pname = "cmake-mode";
    version = "1";
    meta = {
      description = "build cmake-mode from emacsmirror for Doom";
    };
  };
}