diff --git a/pkgs/by-name/op/openvaf/package.nix b/pkgs/by-name/op/openvaf/package.nix
new file mode 100644
index 000000000000..6f447112b706
--- /dev/null
+++ b/pkgs/by-name/op/openvaf/package.nix
@@ -0,0 +1,59 @@
+{
+  lib,
+  rustPlatform,
+  fetchFromGitHub,
+  nix-update-script,
+  llvmPackages,
+}:
+
+rustPlatform.buildRustPackage.override { inherit (llvmPackages) stdenv; } (finalAttrs: {
+  pname = "openvaf";
+  version = "24.0.1";
+  __structuredAttrs = true;
+  strictDeps = true;
+
+  src = fetchFromGitHub {
+    owner = "OpenVAF";
+    repo = "OpenVAF-Reloaded";
+    rev = "v${finalAttrs.version}mob";
+    hash = "sha256-wZMZpg4X7yRVssGv8U6dupawTtzs7CLbYhaMBlxxBKo=";
+  };
+
+  cargoHash = "sha256-+jvaiBCmjd3RrlES+Sc1SskEMOtO1ykOdInMTH/Gazo=";
+
+  nativeBuildInputs = [
+    llvmPackages.llvm
+  ];
+
+  buildFeatures = [
+    "llvm${lib.versions.major llvmPackages.llvm.version}"
+  ];
+
+  cargoBuildFlags = [
+    "--package"
+    "openvaf-driver"
+  ];
+
+  cargoTestFlags = [
+    "--package"
+    "openvaf-driver"
+  ];
+
+  # This is required or else nothing will build
+  hardeningDisable = [
+    "pic"
+    "zerocallusedregs"
+  ];
+
+  passthru.updateScript = nix-update-script { };
+
+  meta = {
+    description = "Verilog-A compiler";
+    homepage = "https://github.com/OpenVAF/OpenVAF-Reloaded";
+    changelog = "https://github.com/OpenVAF/OpenVAF-Reloaded/releases/tag/v${finalAttrs.version}mob";
+    mainProgram = "openvaf-r";
+    license = lib.licenses.gpl3Plus;
+    maintainers = with lib.maintainers; [ eljamm ];
+    teams = with lib.teams; [ ngi ];
+  };
+})
diff --git a/pkgs/by-name/va/vacask/package.nix b/pkgs/by-name/va/vacask/package.nix
new file mode 100644
index 000000000000..df72bc92f73c
--- /dev/null
+++ b/pkgs/by-name/va/vacask/package.nix
@@ -0,0 +1,108 @@
+{
+  lib,
+  stdenv,
+  fetchFromGitea,
+  nix-update-script,
+  runCommand,
+
+  # build-time
+  bison,
+  cmake,
+  flex,
+  openvaf,
+  python3,
+
+  # run-time
+  boost188,
+  suitesparse,
+  tomlplusplus,
+}:
+
+let
+  # VACASK includes SuiteSparse headers as <suitesparse/klu.h>, the layout used
+  # by SuiteSparse >= 6. However, our suitesparse is currently at 5.13.0 and
+  # installs headers flat into include/, so here we're fixing that.
+  # TODO: remove when suitesparse is updated
+  suitesparse-include = runCommand "suitesparse-include" { } ''
+    mkdir -p $out/include/suitesparse
+    ln -s ${suitesparse.dev}/include/*.h $out/include/suitesparse/
+  '';
+
+  pyEnv = python3.withPackages (
+    ps: with ps; [
+      numpy
+      scipy
+    ]
+  );
+in
+
+stdenv.mkDerivation (finalAttrs: {
+  pname = "vacask";
+  version = "0.3.3";
+  __structuredAttrs = true;
+  strictDeps = true;
+
+  src = fetchFromGitea {
+    domain = "codeberg.org";
+    owner = "arpadbuermen";
+    repo = "VACASK";
+    tag = "_${finalAttrs.version}";
+    hash = "sha256-eU3SuJPqxqc8QO5k4Jb/9zc8V2JQ1VP1bPEoJ6KCi/c=";
+  };
+
+  postPatch = ''
+    substituteInPlace CMakeLists.txt \
+      --replace-fail \
+        "Boost_USE_STATIC_LIBS ON" \
+        "Boost_USE_STATIC_LIBS OFF" \
+      --replace-fail \
+        'set(PROGRAM_VERSION "unknown")' \
+        'set(PROGRAM_VERSION "${finalAttrs.version}")'
+  '';
+
+  nativeBuildInputs = [
+    bison
+    boost188.dev
+    cmake
+    flex
+    openvaf
+    pyEnv
+  ];
+
+  buildInputs = [
+    boost188
+    suitesparse
+    tomlplusplus
+  ];
+
+  cmakeFlags = [
+    (lib.cmakeFeature "FLEX_INCLUDE_DIR" "${flex}/include")
+    (lib.cmakeFeature "SuiteSparse_DIR" "${suitesparse-include}")
+    (lib.cmakeFeature "TOMLPP_DIR" "${tomlplusplus}")
+  ];
+
+  doCheck = true;
+
+  nativeCheckInputs = [
+    openvaf
+    pyEnv
+  ];
+
+  passthru.updateScript = nix-update-script { };
+
+  meta = {
+    description = "Analog circuit simulator";
+    longDescription = ''
+      VACASK is a Verilog-A Circuit Analysis Kernel - an analog circuit
+      simulator with a device library built from Verilog-A modules.
+    '';
+    homepage = "https://codeberg.org/arpadbuermen/VACASK";
+    changelog = "https://codeberg.org/arpadbuermen/VACASK/releases/tag/${finalAttrs.src.tag}";
+    mainProgram = "vacask";
+    license = lib.licenses.agpl3Plus;
+    # TODO: add darwin support
+    platforms = lib.platforms.linux;
+    maintainers = with lib.maintainers; [ eljamm ];
+    teams = with lib.teams; [ ngi ];
+  };
+})