diff --git a/doc/languages-frameworks/vim.section.md b/doc/languages-frameworks/vim.section.md
index c79fd3a55df99..4bb2b6e4f2550 100644
--- a/doc/languages-frameworks/vim.section.md
+++ b/doc/languages-frameworks/vim.section.md
@@ -264,10 +264,15 @@ nix-shell -p vimPluginsUpdater --run 'vim-plugins-updater --github-token=mytoken
 Alternatively, set the number of processes to a lower count to avoid rate-limiting.
 
 ```sh
-
 nix-shell -p vimPluginsUpdater --run 'vim-plugins-updater --proc 1'
 ```
 
+If you want to update only certain plugins, you can specify them after the `update` command. Note that you must use the same plugin names as the `pkgs/applications/editors/vim/plugins/vim-plugin-names` file.
+
+```sh
+nix-shell -p vimPluginsUpdater --run 'vim-plugins-updater update "nvim-treesitter" "LazyVim"'
+```
+
 ## How to maintain an out-of-tree overlay of vim plugins ? {#vim-out-of-tree-overlays}
 
 You can use the updater script to generate basic packages out of a custom vim
diff --git a/maintainers/scripts/pluginupdate-py/pluginupdate.py b/maintainers/scripts/pluginupdate-py/pluginupdate.py
index e37e82fef3e7b..2f55c1359de72 100644
--- a/maintainers/scripts/pluginupdate-py/pluginupdate.py
+++ b/maintainers/scripts/pluginupdate-py/pluginupdate.py
@@ -32,7 +32,7 @@
 from multiprocessing.dummy import Pool
 from pathlib import Path
 from tempfile import NamedTemporaryFile
-from typing import Any, Callable, Dict, List, Optional, Tuple, Union
+from typing import Any, Callable
 from urllib.parse import urljoin, urlparse
 
 import git
@@ -94,7 +94,7 @@ def make_request(url: str, token=None) -> urllib.request.Request:
 
 
 # a dictionary of plugins and their new repositories
-Redirects = Dict["PluginDesc", "Repo"]
+Redirects = dict["PluginDesc", "Repo"]
 
 
 class Repo:
@@ -103,7 +103,7 @@ def __init__(self, uri: str, branch: str) -> None:
         """Url to the repo"""
         self._branch = branch
         # Redirect is the new Repo to use
-        self.redirect: Optional["Repo"] = None
+        self.redirect: "Repo | None" = None
         self.token = "dummy_token"
 
     @property
@@ -125,14 +125,14 @@ def has_submodules(self) -> bool:
         return True
 
     @retry(urllib.error.URLError, tries=4, delay=3, backoff=2)
-    def latest_commit(self) -> Tuple[str, datetime]:
+    def latest_commit(self) -> tuple[str, datetime]:
         log.debug("Latest commit")
         loaded = self._prefetch(None)
         updated = datetime.strptime(loaded["date"], "%Y-%m-%dT%H:%M:%S%z")
 
         return loaded["rev"], updated
 
-    def _prefetch(self, ref: Optional[str]):
+    def _prefetch(self, ref: str | None):
         cmd = ["nix-prefetch-git", "--quiet", "--fetch-submodules", self.uri]
         if ref is not None:
             cmd.append(ref)
@@ -141,7 +141,7 @@ def _prefetch(self, ref: Optional[str]):
         loaded = json.loads(data)
         return loaded
 
-    def prefetch(self, ref: Optional[str]) -> str:
+    def prefetch(self, ref: str | None) -> str:
         log.info("Prefetching %s", self.uri)
         loaded = self._prefetch(ref)
         return loaded["sha256"]
@@ -186,7 +186,7 @@ def has_submodules(self) -> bool:
         return True
 
     @retry(urllib.error.URLError, tries=4, delay=3, backoff=2)
-    def latest_commit(self) -> Tuple[str, datetime]:
+    def latest_commit(self) -> tuple[str, datetime]:
         commit_url = self.url(f"commits/{self.branch}.atom")
         log.debug("Sending request to %s", commit_url)
         commit_req = make_request(commit_url, self.token)
@@ -252,14 +252,14 @@ def as_nix(self, plugin: "Plugin") -> str:
 class PluginDesc:
     repo: Repo
     branch: str
-    alias: Optional[str]
+    alias: str | None
 
     @property
     def name(self):
         return self.alias or self.repo.name
 
     @staticmethod
-    def load_from_csv(config: FetchConfig, row: Dict[str, str]) -> "PluginDesc":
+    def load_from_csv(config: FetchConfig, row: dict[str, str]) -> "PluginDesc":
         log.debug("Loading row %s", row)
         branch = row["branch"]
         repo = make_repo(row["repo"], branch.strip())
@@ -292,7 +292,7 @@ class Plugin:
     commit: str
     has_submodules: bool
     sha256: str
-    date: Optional[datetime] = None
+    date: datetime | None = None
 
     @property
     def normalized_name(self) -> str:
@@ -303,7 +303,7 @@ def version(self) -> str:
         assert self.date is not None
         return self.date.strftime("%Y-%m-%d")
 
-    def as_json(self) -> Dict[str, str]:
+    def as_json(self) -> dict[str, str]:
         copy = self.__dict__.copy()
         del copy["date"]
         return copy
@@ -312,7 +312,7 @@ def as_json(self) -> Dict[str, str]:
 def load_plugins_from_csv(
     config: FetchConfig,
     input_file: Path,
-) -> List[PluginDesc]:
+) -> list[PluginDesc]:
     log.debug("Load plugins from csv %s", input_file)
     plugins = []
     with open(input_file, newline="") as csvfile:
@@ -359,10 +359,10 @@ def __init__(
         name: str,
         root: Path,
         get_plugins: str,
-        default_in: Optional[Path] = None,
-        default_out: Optional[Path] = None,
-        deprecated: Optional[Path] = None,
-        cache_file: Optional[str] = None,
+        default_in: Path | None = None,
+        default_out: Path | None = None,
+        deprecated: Path | None = None,
+        cache_file: str | None = None,
     ):
         log.debug("get_plugins:", get_plugins)
         self.name = name
@@ -388,6 +388,19 @@ def add(self, args):
                 fetch_config, args.input_file, editor.deprecated, append=append
             )
             plugin, _ = prefetch_plugin(pdesc)
+
+            if (  # lua updater doesn't support updating individual plugin
+                self.name != "lua"
+            ):
+                # update generated.nix
+                update = self.get_update(
+                    args.input_file,
+                    args.outfile,
+                    fetch_config,
+                    [plugin.normalized_name],
+                )
+                update()
+
             autocommit = not args.no_commit
             if autocommit:
                 commit(
@@ -404,16 +417,35 @@ def update(self, args):
         """CSV spec"""
         print("the update member function should be overridden in subclasses")
 
-    def get_current_plugins(self, nixpkgs: str) -> List[Plugin]:
+    def get_current_plugins(
+        self, config: FetchConfig, nixpkgs: str
+    ) -> list[tuple[PluginDesc, Plugin]]:
         """To fill the cache"""
         data = run_nix_expr(self.get_plugins, nixpkgs)
         plugins = []
         for name, attr in data.items():
-            p = Plugin(name, attr["rev"], attr["submodules"], attr["sha256"])
-            plugins.append(p)
+            checksum = attr["checksum"]
+
+            # https://github.com/NixOS/nixpkgs/blob/8a335419/pkgs/applications/editors/neovim/build-neovim-plugin.nix#L36
+            # https://github.com/NixOS/nixpkgs/pull/344478#discussion_r1786646055
+            version = re.search(r"\d\d\d\d-\d\d?-\d\d?", attr["version"])
+            if version is None:
+                raise ValueError(f"Cannot parse version: {attr['version']}")
+            date = datetime.strptime(version.group(), "%Y-%m-%d")
+
+            pdesc = PluginDesc.load_from_string(config, f'{attr["homePage"]} as {name}')
+            p = Plugin(
+                attr["pname"],
+                checksum["rev"],
+                checksum["submodules"],
+                checksum["sha256"],
+                date,
+            )
+
+            plugins.append((pdesc, p))
         return plugins
 
-    def load_plugin_spec(self, config: FetchConfig, plugin_file) -> List[PluginDesc]:
+    def load_plugin_spec(self, config: FetchConfig, plugin_file) -> list[PluginDesc]:
         """CSV spec"""
         return load_plugins_from_csv(config, plugin_file)
 
@@ -421,28 +453,115 @@ def generate_nix(self, _plugins, _outfile: str):
         """Returns nothing for now, writes directly to outfile"""
         raise NotImplementedError()
 
-    def get_update(self, input_file: str, outfile: str, config: FetchConfig):
-        cache: Cache = Cache(self.get_current_plugins(self.nixpkgs), self.cache_file)
+    def filter_plugins_to_update(
+        self, plugin: PluginDesc, to_update: list[str]
+    ) -> bool:
+        """Function for filtering out plugins, that user doesn't want to update.
+
+        It is mainly used for updating only specific plugins, not all of them.
+        By default it filters out plugins not present in `to_update`,
+        assuming `to_update` is a list of plugin names (the same as in the
+        result expression).
+
+        This function is never called if `to_update` is empty.
+        Feel free to override this function in derived classes.
+
+        Note:
+            Known bug: you have to use a deprecated name, instead of new one.
+            This is because we resolve deprecations later and can't get new
+            plugin URL before we request info about it.
+
+            Although, we could parse deprecated.json, but it's a whole bunch
+            of spaghetti code, which I don't want to write.
+
+        Arguments:
+            plugin: Plugin on which you decide whether to ignore or not.
+            to_update:
+                List of strings passed to via the `--update` command line parameter.
+                By default, we assume it is a list of URIs identical to what
+                is in the input file.
+
+        Returns:
+            True if we should update plugin and False if not.
+        """
+        return plugin.name.replace(".", "-") in to_update
+
+    def get_update(
+        self,
+        input_file: str,
+        output_file: str,
+        config: FetchConfig,
+        to_update: list[str] | None,
+    ):
+        if to_update is None:
+            to_update = []
+
+        current_plugins = self.get_current_plugins(config, self.nixpkgs)
+        current_plugin_specs = self.load_plugin_spec(config, input_file)
+
+        cache: Cache = Cache(
+            [plugin for _description, plugin in current_plugins], self.cache_file
+        )
         _prefetch = functools.partial(prefetch, cache=cache)
 
-        def update() -> dict:
-            plugins = self.load_plugin_spec(config, input_file)
+        plugins_to_update = (
+            current_plugin_specs
+            if len(to_update) == 0
+            else [
+                description
+                for description in current_plugin_specs
+                if self.filter_plugins_to_update(description, to_update)
+            ]
+        )
+
+        def update() -> Redirects:
+            if len(plugins_to_update) == 0:
+                log.error(
+                    "\n\n\n\nIt seems like you provided some arguments to `--update`:\n"
+                    + ", ".join(to_update)
+                    + "\nBut after filtering, the result list of plugins is empty\n"
+                    "\n"
+                    "Are you sure you provided the same URIs as in your input file?\n"
+                    "(" + str(input_file) + ")\n\n"
+                )
+                return {}
 
             try:
                 pool = Pool(processes=config.proc)
-                results = pool.map(_prefetch, plugins)
+                results = pool.map(_prefetch, plugins_to_update)
             finally:
                 cache.store()
 
+            print(f"{len(results)} of {len(current_plugins)} were checked")
+            # Do only partial update of out file
+            if len(results) != len(current_plugins):
+                results = self.merge_results(current_plugins, results)
             plugins, redirects = check_results(results)
 
             plugins = sorted(plugins, key=lambda v: v[1].normalized_name)
-            self.generate_nix(plugins, outfile)
+            self.generate_nix(plugins, output_file)
 
             return redirects
 
         return update
 
+    def merge_results(
+        self,
+        current: list[tuple[PluginDesc, Plugin]],
+        fetched: list[tuple[PluginDesc, Exception | Plugin, Repo | None]],
+    ) -> list[tuple[PluginDesc, Exception | Plugin, Repo | None]]:
+        # transforming this to dict, so lookup is O(1) instead of O(n) (n is len(current))
+        result: dict[str, tuple[PluginDesc, Exception | Plugin, Repo | None]] = {
+            # also adding redirect (third item in the result tuple)
+            pl.normalized_name: (pdesc, pl, None)
+            for pdesc, pl in current
+        }
+
+        for plugin_desc, plugin, redirect in fetched:
+            result[plugin.normalized_name] = (plugin_desc, plugin, redirect)
+
+        return list(result.values())
+
     @property
     def attr_path(self):
         return self.name + "Plugins"
@@ -544,6 +663,12 @@ def create_parser(self):
             description="Update all or a subset of existing plugins",
             add_help=False,
         )
+        pupdate.add_argument(
+            "update_only",
+            default=None,
+            nargs="*",
+            help="Plugin URLs to update (must be the same as in the input file)",
+        )
         pupdate.set_defaults(func=self.update)
         return main
 
@@ -587,8 +712,8 @@ def __exit__(self, exc_type: Any, exc_value: Any, traceback: Any) -> None:
 
 def prefetch_plugin(
     p: PluginDesc,
-    cache: "Optional[Cache]" = None,
-) -> Tuple[Plugin, Optional[Repo]]:
+    cache: "Cache | None" = None,
+) -> tuple[Plugin, Repo | None]:
     commit = None
     log.info(f"Fetching last commit for plugin {p.name} from {p.repo.uri}@{p.branch}")
     commit, date = p.repo.latest_commit()
@@ -621,10 +746,10 @@ def print_download_error(plugin: PluginDesc, ex: Exception):
 
 
 def check_results(
-    results: List[Tuple[PluginDesc, Union[Exception, Plugin], Optional[Repo]]],
-) -> Tuple[List[Tuple[PluginDesc, Plugin]], Redirects]:
+    results: list[tuple[PluginDesc, Exception | Plugin, Repo | None]],
+) -> tuple[list[tuple[PluginDesc, Plugin]], Redirects]:
     """ """
-    failures: List[Tuple[PluginDesc, Exception]] = []
+    failures: list[tuple[PluginDesc, Exception]] = []
     plugins = []
     redirects: Redirects = {}
     for pdesc, result, redirect in results:
@@ -637,11 +762,10 @@ def check_results(
                 new_pdesc = PluginDesc(redirect, pdesc.branch, pdesc.alias)
             plugins.append((new_pdesc, result))
 
-    print(f"{len(results) - len(failures)} plugins were checked", end="")
     if len(failures) == 0:
         return plugins, redirects
     else:
-        log.error(f", {len(failures)} plugin(s) could not be downloaded:\n")
+        log.error(f"{len(failures)} plugin(s) could not be downloaded:\n")
 
         for plugin, exception in failures:
             print_download_error(plugin, exception)
@@ -661,7 +785,7 @@ def make_repo(uri: str, branch) -> Repo:
     return repo
 
 
-def get_cache_path(cache_file_name: str) -> Optional[Path]:
+def get_cache_path(cache_file_name: str) -> Path | None:
     xdg_cache = os.environ.get("XDG_CACHE_HOME", None)
     if xdg_cache is None:
         home = os.environ.get("HOME", None)
@@ -673,7 +797,7 @@ def get_cache_path(cache_file_name: str) -> Optional[Path]:
 
 
 class Cache:
-    def __init__(self, initial_plugins: List[Plugin], cache_file_name: str) -> None:
+    def __init__(self, initial_plugins: list[Plugin], cache_file_name: str) -> None:
         self.cache_file = get_cache_path(cache_file_name)
 
         downloads = {}
@@ -682,11 +806,11 @@ def __init__(self, initial_plugins: List[Plugin], cache_file_name: str) -> None:
         downloads.update(self.load())
         self.downloads = downloads
 
-    def load(self) -> Dict[str, Plugin]:
+    def load(self) -> dict[str, Plugin]:
         if self.cache_file is None or not self.cache_file.exists():
             return {}
 
-        downloads: Dict[str, Plugin] = {}
+        downloads: dict[str, Plugin] = {}
         with open(self.cache_file) as f:
             data = json.load(f)
             for attr in data.values():
@@ -707,7 +831,7 @@ def store(self) -> None:
                 data[name] = attr.as_json()
             json.dump(data, f, indent=4, sort_keys=True)
 
-    def __getitem__(self, key: str) -> Optional[Plugin]:
+    def __getitem__(self, key: str) -> Plugin | None:
         return self.downloads.get(key, None)
 
     def __setitem__(self, key: str, value: Plugin) -> None:
@@ -716,7 +840,7 @@ def __setitem__(self, key: str, value: Plugin) -> None:
 
 def prefetch(
     pluginDesc: PluginDesc, cache: Cache
-) -> Tuple[PluginDesc, Union[Exception, Plugin], Optional[Repo]]:
+) -> tuple[PluginDesc, Exception | Plugin, Repo | None]:
     try:
         plugin, redirect = prefetch_plugin(pluginDesc, cache)
         cache[plugin.commit] = plugin
@@ -731,7 +855,7 @@ def rewrite_input(
     deprecated: Path,
     # old pluginDesc and the new
     redirects: Redirects = {},
-    append: List[PluginDesc] = [],
+    append: list[PluginDesc] = [],
 ):
     log.info("Rewriting input file %s", input_file)
     plugins = load_plugins_from_csv(config, input_file)
@@ -779,7 +903,7 @@ def rewrite_input(
             writer.writerow(asdict(plugin))
 
 
-def commit(repo: git.Repo, message: str, files: List[Path]) -> None:
+def commit(repo: git.Repo, message: str, files: list[Path]) -> None:
     repo.index.add([str(f.resolve()) for f in files])
 
     if repo.index.diff("HEAD"):
@@ -802,7 +926,14 @@ def update_plugins(editor: Editor, args):
         )
 
     fetch_config = FetchConfig(args.proc, args.github_token)
-    update = editor.get_update(args.input_file, args.outfile, fetch_config)
+    update = editor.get_update(
+        input_file=args.input_file,
+        output_file=args.outfile,
+        config=fetch_config,
+        to_update=getattr(  # if script was called without arguments
+            args, "update_only", None
+        ),
+    )
 
     start_time = time.time()
     redirects = update()
diff --git a/pkgs/applications/editors/kakoune/plugins/update.py b/pkgs/applications/editors/kakoune/plugins/update.py
index 333c96807dd4c..9b06d0c06e9c8 100755
--- a/pkgs/applications/editors/kakoune/plugins/update.py
+++ b/pkgs/applications/editors/kakoune/plugins/update.py
@@ -12,7 +12,6 @@
 import os
 import sys
 from pathlib import Path
-from typing import List, Tuple
 
 # Import plugin update library from maintainers/scripts/pluginupdate.py
 ROOT = Path(os.path.dirname(os.path.abspath(inspect.getfile(inspect.currentframe()))))  # type: ignore
@@ -21,13 +20,11 @@
 )
 import pluginupdate
 
-GET_PLUGINS = f"""(
-with import <localpkgs> {{ }};
+GET_PLUGINS = f"""with import <localpkgs> {{ }};
 let
   inherit (kakouneUtils.override {{ }}) buildKakounePluginFrom2Nix;
-  generated = callPackage {ROOT}/generated.nix {{
-    inherit buildKakounePluginFrom2Nix;
-  }};
+  generated = callPackage {ROOT}/generated.nix {{ inherit buildKakounePluginFrom2Nix; }};
+
   hasChecksum =
     value:
     lib.isAttrs value
@@ -35,20 +32,23 @@
       "src"
       "outputHash"
     ] value;
-  getChecksum =
-    name: value:
-    if hasChecksum value then
-      {{
-        submodules = value.src.fetchSubmodules or false;
-        sha256 = value.src.outputHash;
-        rev = value.src.rev;
-      }}
-    else
-      null;
-  checksums = lib.mapAttrs getChecksum generated;
+
+  parse = name: value: {{
+    pname = value.pname;
+    version = value.version;
+    homePage = value.meta.homepage;
+    checksum =
+      if hasChecksum value then
+        {{
+          submodules = value.src.fetchSubmodules or false;
+          sha256 = value.src.outputHash;
+          rev = value.src.rev;
+        }}
+      else
+        null;
+  }};
 in
-lib.filterAttrs (n: v: v != null) checksums
-)"""
+lib.mapAttrs parse generated"""
 
 HEADER = "# This file has been @generated by ./pkgs/applications/editors/kakoune/plugins/update.py. Do not edit!"
 
@@ -56,7 +56,7 @@
 class KakouneEditor(pluginupdate.Editor):
     def generate_nix(
         self,
-        plugins: List[Tuple[pluginupdate.PluginDesc, pluginupdate.Plugin]],
+        plugins: list[tuple[pluginupdate.PluginDesc, pluginupdate.Plugin]],
         outfile: str,
     ):
         with open(outfile, "w+") as f:
diff --git a/pkgs/applications/editors/vim/plugins/get-plugins.nix b/pkgs/applications/editors/vim/plugins/get-plugins.nix
index 6c587a94821f4..c32f3880d6f2e 100644
--- a/pkgs/applications/editors/vim/plugins/get-plugins.nix
+++ b/pkgs/applications/editors/vim/plugins/get-plugins.nix
@@ -6,6 +6,7 @@ let
   generated = callPackage <localpkgs/pkgs/applications/editors/vim/plugins/generated.nix> {
     inherit buildNeovimPlugin buildVimPlugin;
   } { } { };
+
   hasChecksum =
     value:
     lib.isAttrs value
@@ -13,16 +14,20 @@ let
       "src"
       "outputHash"
     ] value;
-  getChecksum =
-    name: value:
-    if hasChecksum value then
-      {
-        submodules = value.src.fetchSubmodules or false;
-        sha256 = value.src.outputHash;
-        rev = value.src.rev;
-      }
-    else
-      null;
-  checksums = lib.mapAttrs getChecksum generated;
+
+  parse = name: value: {
+    pname = value.pname;
+    version = value.version;
+    homePage = value.meta.homepage;
+    checksum =
+      if hasChecksum value then
+        {
+          submodules = value.src.fetchSubmodules or false;
+          sha256 = value.src.outputHash;
+          rev = value.src.rev;
+        }
+      else
+        null;
+  };
 in
-lib.filterAttrs (n: v: v != null) checksums
+lib.mapAttrs parse generated
diff --git a/pkgs/by-name/lu/luarocks-packages-updater/updater.py b/pkgs/by-name/lu/luarocks-packages-updater/updater.py
index 2471e46f5f427..49ac8f8379df6 100755
--- a/pkgs/by-name/lu/luarocks-packages-updater/updater.py
+++ b/pkgs/by-name/lu/luarocks-packages-updater/updater.py
@@ -17,7 +17,6 @@
 from dataclasses import dataclass
 from multiprocessing.dummy import Pool
 from pathlib import Path
-from typing import List, Optional, Tuple
 
 import pluginupdate
 from pluginupdate import FetchConfig, update_plugins
@@ -49,18 +48,18 @@ class LuaPlugin:
     """Name of the plugin, as seen on luarocks.org"""
     rockspec: str
     """Full URI towards the rockspec"""
-    ref: Optional[str]
+    ref: str | None
     """git reference (branch name/tag)"""
-    version: Optional[str]
+    version: str | None
     """Set it to pin a package """
-    server: Optional[str]
+    server: str | None
     """luarocks.org registers packages under different manifests.
     Its value can be 'http://luarocks.org/dev'
     """
-    luaversion: Optional[str]
+    luaversion: str | None
     """lua version if a package is available only for a specific lua version"""
-    maintainers: Optional[str]
-    """ Optional string listing maintainers separated by spaces"""
+    maintainers: str | None
+    """Optional string listing maintainers separated by spaces"""
 
     @property
     def normalized_name(self) -> str:
@@ -77,7 +76,7 @@ def create_parser(self):
     def get_current_plugins(self):
         return []
 
-    def load_plugin_spec(self, input_file) -> List[LuaPlugin]:
+    def load_plugin_spec(self, input_file) -> list[LuaPlugin]:
         luaPackages = []
         csvfilename = input_file
         log.info("Loading package descriptions from %s", csvfilename)
@@ -95,7 +94,7 @@ def load_plugin_spec(self, input_file) -> List[LuaPlugin]:
     def update(self, args):
         update_plugins(self, args)
 
-    def generate_nix(self, results: List[Tuple[LuaPlugin, str]], outfilename: str):
+    def generate_nix(self, results: list[tuple[LuaPlugin, str]], outfilename: str):
         with tempfile.NamedTemporaryFile("w+") as f:
             f.write(HEADER)
             header2 = textwrap.dedent(
@@ -121,7 +120,16 @@ def generate_nix(self, results: List[Tuple[LuaPlugin, str]], outfilename: str):
     def attr_path(self):
         return "luaPackages"
 
-    def get_update(self, input_file: str, outfile: str, config: FetchConfig):
+    def get_update(
+        self,
+        input_file: str,
+        outfile: str,
+        config: FetchConfig,
+        # TODO: implement support for adding/updating individual plugins
+        to_update: list[str] | None,
+    ):
+        if to_update is not None:
+            raise NotImplementedError("For now, lua updater doesn't support updating individual packages.")
         _prefetch = generate_pkg_nix
 
         def update() -> dict: