feat: add 'proof of React' challenge (#1038)

* feat: add 'proof of React' challenge

Signed-off-by: Xe Iaso <me@xeiaso.net>

* fix(challenge/preact): use JSX fragments

Signed-off-by: Xe Iaso <me@xeiaso.net>

* fix(challenge/preact): ensure that the client waits as long as it needs to

Signed-off-by: Xe Iaso <me@xeiaso.net>

* docs: fix spelling

Signed-off-by: Xe Iaso <me@xeiaso.net>

* fix(challenges/xeact): add noscript warning

Signed-off-by: Xe Iaso <me@xeiaso.net>

* fix(challenges/xeact): add default loading message

Signed-off-by: Xe Iaso <me@xeiaso.net>

* fix(challenges/xeact): make a UI render without JS

Signed-off-by: Xe Iaso <me@xeiaso.net>

* fix(challenges/xeact): use %s here, not %w

Signed-off-by: Xe Iaso <me@xeiaso.net>

* fix(test/healthcheck): run asset build

Signed-off-by: Xe Iaso <me@xeiaso.net>

* fix(challenge/preact): fix build in ci

Signed-off-by: Xe Iaso <me@xeiaso.net>

---------

Signed-off-by: Xe Iaso <me@xeiaso.net>
Signed-off-by: Xe Iaso <xe.iaso@techaro.lol>

.github/actions/spelling/allow.txt

@@ -5,3 +5,4 @@ ubuntu
 workarounds
 rjack
 msgbox
+xeact

data/botPolicies.yaml

@@ -211,6 +211,21 @@ thresholds:
         - weight >= 10
         - weight < 20
     action: CHALLENGE
+    challenge:
+      # https://anubis.techaro.lol/docs/admin/configuration/challenges/preact
+      #
+      # This challenge proves the client can run a webapp written with Preact.
+      # The preact webapp simply loads, calculates the SHA-256 checksum of the
+      # challenge data, and forwards that to the client.
+      algorithm: preact
+      difficulty: 1
+      report_as: 1
+  - name: mild-proof-of-work
+    expression:
+      all:
+        - weight >= 20
+        - weight < 30
+    action: CHALLENGE
     challenge:
       # https://anubis.techaro.lol/docs/admin/configuration/challenges/proof-of-work
       algorithm: fast
@@ -218,7 +233,7 @@ thresholds:
       report_as: 2
   # For clients that are browser like and have gained many points from custom rules
   - name: extreme-suspicion
-    expression: weight >= 20
+    expression: weight >= 30
     action: CHALLENGE
     challenge:
       # https://anubis.techaro.lol/docs/admin/configuration/challenges/proof-of-work

docs/docs/CHANGELOG.md

@@ -13,6 +13,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 <!-- This changes the project to: -->
 
+- Add a "proof of React" challenge to prove that the client is able to run a simple JSX app.
 - Added possibility to disable HTTP keep-alive to support backends not properly
   handling it
 - Added a missing link to the Caddy installation environment in the installation documentation.

docs/docs/admin/configuration/challenges/preact.mdx

@@ -0,0 +1,19 @@
+# Preact
+
+The `preact` challenge sends the browser a simple challenge that makes it run very lightweight JavaScript that proves the client is able to execute client-side JavaScript. It uses [Preact](https://www.npmjs.com/package/preact) (a lightweight client side web framework in the vein of React) to do this.
+
+To use it in your Anubis configuration:
+
+```yaml
+# Generic catchall rule
+- name: generic-browser
+  user_agent_regex: >-
+    Mozilla|Opera
+  action: CHALLENGE
+  challenge:
+    difficulty: 1 # Number of seconds to wait before refreshing the page
+    report_as: 4 # Unused by this challenge method
+    algorithm: preact
+```
+
+This is the default challenge method for most clients.

lib/anubis.go

@@ -36,6 +36,7 @@ import (
 
 	// challenge implementations
 	_ "github.com/TecharoHQ/anubis/lib/challenge/metarefresh"
+	_ "github.com/TecharoHQ/anubis/lib/challenge/preact"
 	_ "github.com/TecharoHQ/anubis/lib/challenge/proofofwork"
 )
 

lib/challenge/preact/build.sh

@@ -0,0 +1,49 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+cd "$(dirname "$0")"
+
+LICENSE='/*
+@licstart  The following is the entire license notice for the
+JavaScript code in this page.
+
+Copyright (c) 2025 Xe Iaso <xe.iaso@techaro.lol>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+
+Includes code from https://www.npmjs.com/package/preact which is used under
+the terms of the MIT license.
+
+Includes code from https://github.com/aws/aws-sdk-js-crypto-helpers which is
+used under the terms of the Apache 2 license.
+
+@licend  The above is the entire license notice
+for the JavaScript code in this page.
+*/'
+
+mkdir -p static/js
+
+for file in js/*.jsx; do
+  filename="${file##*/}"       # Extracts "app.jsx" from "./js/app.jsx"
+  output="${filename%.jsx}.js"  # Changes "app.jsx" to "app.js"
+  echo $output
+
+  esbuild "${file}" --minify --bundle --outfile=static/"${output}" --banner:js="${LICENSE}"
+done

lib/challenge/preact/js/app.jsx

@@ -0,0 +1,62 @@
+import { render, h, Fragment } from 'preact';
+import { useState, useEffect } from 'preact/hooks';
+import { g, j, u, x } from "./xeact.js";
+import { Sha256 } from '@aws-crypto/sha256-js';
+
+/** @jsx h */
+/** @jsxFrag Fragment */
+
+function toHexString(arr) {
+  return Array.from(arr)
+    .map((c) => c.toString(16).padStart(2, "0"))
+    .join("");
+}
+
+const App = () => {
+  const [state, setState] = useState(null);
+  const [imageURL, setImageURL] = useState(null);
+  const [passed, setPassed] = useState(false);
+  const [challenge, setChallenge] = useState(null);
+
+  useEffect(() => {
+    setState(j("preact_info"));
+  });
+
+  useEffect(() => {
+    setImageURL(state.pensive_url);
+    const hash = new Sha256('');
+    hash.update(state.challenge);
+    setChallenge(toHexString(hash.digestSync()));
+  }, [state]);
+
+  useEffect(() => {
+    const timer = setTimeout(() => {
+      setPassed(true);
+    }, state.difficulty * 100);
+
+    return () => clearTimeout(timer);
+  }, [challenge]);
+
+  useEffect(() => {
+    window.location.href = u(state.redir, {
+      result: challenge,
+    });
+  }, [passed]);
+
+  return (
+    <>
+      {imageURL !== null && (
+        <img src={imageURL} style="width:100%;max-width:256px;" />
+      )}
+      {state !== null && (
+        <>
+          <p id="status">{state.loading_message}</p>
+          <p>{state.connection_security_message}</p>
+        </>
+      )}
+    </>
+  );
+};
+
+x(g("app"));
+render(<App />, g("app"));

lib/challenge/preact/js/xeact.js

@@ -0,0 +1,129 @@
+/**
+ * Creates a DOM element, assigns the properties of `data` to it, and appends all `children`.
+ *
+ * @type{function(string|Function, Object=, Node|Array.<Node|string>=)}
+ */
+const h = (name, data = {}, children = []) => {
+  const result =
+    typeof name == "function" ? name(data) : Object.assign(document.createElement(name), data);
+  if (!Array.isArray(children)) {
+    children = [children];
+  }
+  result.append(...children);
+  return result;
+};
+
+/**
+ * Create a text node.
+ *
+ * Equivalent to `document.createTextNode(text)`
+ *
+ * @type{function(string): Text}
+ */
+const t = (text) => document.createTextNode(text);
+
+/**
+ * Remove all child nodes from a DOM element.
+ *
+ * @type{function(Node)}
+ */
+const x = (elem) => {
+  while (elem.lastChild) {
+    elem.removeChild(elem.lastChild);
+  }
+};
+
+/**
+ * Get all elements with the given ID.
+ *
+ * Equivalent to `document.getElementById(name)`
+ *
+ * @type{function(string): HTMLElement}
+ */
+const g = (name) => document.getElementById(name);
+
+/**
+ * Get all elements with the given class name.
+ *
+ * Equivalent to `document.getElementsByClassName(name)`
+ *
+ * @type{function(string): HTMLCollectionOf.<Element>}
+ */
+const c = (name) => document.getElementsByClassName(name);
+
+/** @type{function(string): HTMLCollectionOf.<Element>} */
+const n = (name) => document.getElementsByName(name);
+
+/**
+ * Get all elements matching the given HTML selector.
+ *
+ * Matches selectors with `document.querySelectorAll(selector)`
+ *
+ * @type{function(string): Array.<HTMLElement>}
+ */
+const s = (selector) => Array.from(document.querySelectorAll(selector));
+
+/**
+ * Generate a relative URL from `url`, appending all key-value pairs from `params` as URL-encoded parameters.
+ *
+ * @type{function(string=, Object=): string}
+ */
+const u = (url = "", params = {}) => {
+  let result = new URL(url, window.location.href);
+  Object.entries(params).forEach((kv) => {
+    let [k, v] = kv;
+    result.searchParams.set(k, v);
+  });
+  return result.toString();
+};
+
+/**
+ * Takes a callback to run when all DOM content is loaded.
+ *
+ * Equivalent to `window.addEventListener('DOMContentLoaded', callback)`
+ *
+ * @type{function(function())}
+ */
+const r = (callback) => window.addEventListener("DOMContentLoaded", callback);
+
+/**
+ * Allows a stateful value to be tracked by consumers.
+ *
+ * This is the Xeact version of the React useState hook.
+ *
+ * @type{function(any): [function(): any, function(any): void]}
+ */
+const useState = (value = undefined) => {
+  return [
+    () => value,
+    (x) => {
+      value = x;
+    },
+  ];
+};
+
+/**
+ * Debounce an action for up to ms milliseconds.
+ *
+ * @type{function(number): function(function(any): void)}
+ */
+const d = (ms) => {
+  let debounceTimer = null;
+  return (f) => {
+    clearTimeout(debounceTimer);
+    debounceTimer = setTimeout(f, ms);
+  };
+};
+
+/**
+ * Parse the contents of a given HTML page element as JSON and
+ * return the results.
+ * 
+ * This is useful when using templ to pass complicated data from
+ * the server to the client via HTML[1].
+ * 
+ * [1]: https://templ.guide/syntax-and-usage/script-templates/#pass-server-side-data-to-the-client-in-a-html-attribute
+ */
+const j = (id) => JSON.parse(g(id).textContent);
+
+export { h, t, x, g, j, c, n, u, s, r, useState, d };

lib/challenge/preact/preact.go

@@ -0,0 +1,74 @@
+package preact
+
+import (
+	"context"
+	"crypto/subtle"
+	_ "embed"
+	"fmt"
+	"io"
+	"log/slog"
+	"net/http"
+	"time"
+
+	"github.com/TecharoHQ/anubis"
+	"github.com/TecharoHQ/anubis/internal"
+	"github.com/TecharoHQ/anubis/lib/challenge"
+	"github.com/TecharoHQ/anubis/lib/localization"
+	"github.com/a-h/templ"
+)
+
+//go:generate ./build.sh
+//go:generate go tool github.com/a-h/templ/cmd/templ generate
+
+//go:embed static/app.js
+var appJS []byte
+
+func renderAppJS(ctx context.Context, out io.Writer) error {
+	fmt.Fprint(out, `<script type="module">`)
+	out.Write(appJS)
+	fmt.Fprint(out, "</script>")
+	return nil
+}
+
+func init() {
+	challenge.Register("preact", &impl{})
+}
+
+type impl struct{}
+
+func (i *impl) Setup(mux *http.ServeMux) {}
+
+func (i *impl) Issue(r *http.Request, lg *slog.Logger, in *challenge.IssueInput) (templ.Component, error) {
+	u, err := r.URL.Parse(anubis.BasePrefix + "/.within.website/x/cmd/anubis/api/pass-challenge")
+	if err != nil {
+		return nil, fmt.Errorf("can't render page: %w", err)
+	}
+
+	q := u.Query()
+	q.Set("redir", r.URL.String())
+	q.Set("id", in.Challenge.ID)
+	u.RawQuery = q.Encode()
+
+	loc := localization.GetLocalizer(r)
+
+	result := page(u.String(), in.Challenge.RandomData, in.Rule.Challenge.Difficulty, loc)
+
+	return result, nil
+}
+
+func (i *impl) Validate(r *http.Request, lg *slog.Logger, in *challenge.ValidateInput) error {
+	wantTime := in.Challenge.IssuedAt.Add(time.Duration(in.Rule.Challenge.Difficulty) * 95 * time.Millisecond)
+
+	if time.Now().Before(wantTime) {
+		return challenge.NewError("validate", "insufficent time", fmt.Errorf("%w: wanted user to wait until at least %s", challenge.ErrFailed, wantTime.Format(time.RFC3339)))
+	}
+
+	got := r.FormValue("result")
+	want := internal.SHA256sum(in.Challenge.RandomData)
+
+	if subtle.ConstantTimeCompare([]byte(want), []byte(got)) != 1 {
+		return challenge.NewError("validate", "invalid response", fmt.Errorf("%w: wanted response %s but got %s", challenge.ErrFailed, want, got))
+	}
+
+	return nil
+}

lib/challenge/preact/preact.templ

@@ -0,0 +1,28 @@
+package preact
+
+import (
+	"github.com/TecharoHQ/anubis"
+	"github.com/TecharoHQ/anubis/lib/localization"
+)
+
+templ page(redir, challenge string, difficulty int, loc *localization.SimpleLocalizer) {
+	<div class="centered-div">
+		<div id="app">
+			<img id="image" style="width:100%;max-width:256px;" src={ anubis.BasePrefix + "/.within.website/x/cmd/anubis/static/img/pensive.webp?cacheBuster=" + anubis.Version }/>
+			<p id="status">{ loc.T("loading") }</p>
+			<p>{ loc.T("connection_security") }</p>
+		</div>
+		@templ.JSONScript("preact_info", map[string]any{
+			"redir":                       redir,
+			"challenge":                   challenge,
+			"difficulty":                  difficulty,
+			"connection_security_message": loc.T("connection_security"),
+			"loading_message":             loc.T("loading"),
+			"pensive_url":                 anubis.BasePrefix + "/.within.website/x/cmd/anubis/static/img/pensive.webp?cacheBuster=" + anubis.Version,
+		})
+		@templ.ComponentFunc(renderAppJS)
+		<noscript>
+			{ loc.T("javascript_required") }
+		</noscript>
+	</div>
+}

lib/challenge/preact/preact_templ.go

@@ -0,0 +1,116 @@
+// Code generated by templ - DO NOT EDIT.
+
+// templ: version: v0.3.924
+package preact
+
+//lint:file-ignore SA4006 This context is only used if a nested component is present.
+
+import "github.com/a-h/templ"
+import templruntime "github.com/a-h/templ/runtime"
+
+import (
+	"github.com/TecharoHQ/anubis"
+	"github.com/TecharoHQ/anubis/lib/localization"
+)
+
+func page(redir, challenge string, difficulty int, loc *localization.SimpleLocalizer) templ.Component {
+	return templruntime.GeneratedTemplate(func(templ_7745c5c3_Input templruntime.GeneratedComponentInput) (templ_7745c5c3_Err error) {
+		templ_7745c5c3_W, ctx := templ_7745c5c3_Input.Writer, templ_7745c5c3_Input.Context
+		if templ_7745c5c3_CtxErr := ctx.Err(); templ_7745c5c3_CtxErr != nil {
+			return templ_7745c5c3_CtxErr
+		}
+		templ_7745c5c3_Buffer, templ_7745c5c3_IsBuffer := templruntime.GetBuffer(templ_7745c5c3_W)
+		if !templ_7745c5c3_IsBuffer {
+			defer func() {
+				templ_7745c5c3_BufErr := templruntime.ReleaseBuffer(templ_7745c5c3_Buffer)
+				if templ_7745c5c3_Err == nil {
+					templ_7745c5c3_Err = templ_7745c5c3_BufErr
+				}
+			}()
+		}
+		ctx = templ.InitializeContext(ctx)
+		templ_7745c5c3_Var1 := templ.GetChildren(ctx)
+		if templ_7745c5c3_Var1 == nil {
+			templ_7745c5c3_Var1 = templ.NopComponent
+		}
+		ctx = templ.ClearChildren(ctx)
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 1, "<div class=\"centered-div\"><div id=\"app\"><img id=\"image\" style=\"width:100%;max-width:256px;\" src=\"")
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		var templ_7745c5c3_Var2 string
+		templ_7745c5c3_Var2, templ_7745c5c3_Err = templ.JoinStringErrs(anubis.BasePrefix + "/.within.website/x/cmd/anubis/static/img/pensive.webp?cacheBuster=" + anubis.Version)
+		if templ_7745c5c3_Err != nil {
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `preact.templ`, Line: 11, Col: 166}
+		}
+		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var2))
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 2, "\"><p id=\"status\">")
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		var templ_7745c5c3_Var3 string
+		templ_7745c5c3_Var3, templ_7745c5c3_Err = templ.JoinStringErrs(loc.T("loading"))
+		if templ_7745c5c3_Err != nil {
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `preact.templ`, Line: 12, Col: 36}
+		}
+		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var3))
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 3, "</p><p>")
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		var templ_7745c5c3_Var4 string
+		templ_7745c5c3_Var4, templ_7745c5c3_Err = templ.JoinStringErrs(loc.T("connection_security"))
+		if templ_7745c5c3_Err != nil {
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `preact.templ`, Line: 13, Col: 36}
+		}
+		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var4))
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 4, "</p></div>")
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		templ_7745c5c3_Err = templ.JSONScript("preact_info", map[string]any{
+			"redir":                       redir,
+			"challenge":                   challenge,
+			"difficulty":                  difficulty,
+			"connection_security_message": loc.T("connection_security"),
+			"loading_message":             loc.T("loading"),
+			"pensive_url":                 anubis.BasePrefix + "/.within.website/x/cmd/anubis/static/img/pensive.webp?cacheBuster=" + anubis.Version,
+		}).Render(ctx, templ_7745c5c3_Buffer)
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		templ_7745c5c3_Err = templ.ComponentFunc(renderAppJS).Render(ctx, templ_7745c5c3_Buffer)
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 5, "<noscript>")
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		var templ_7745c5c3_Var5 string
+		templ_7745c5c3_Var5, templ_7745c5c3_Err = templ.JoinStringErrs(loc.T("javascript_required"))
+		if templ_7745c5c3_Err != nil {
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `preact.templ`, Line: 25, Col: 33}
+		}
+		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var5))
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 6, "</noscript></div>")
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		return nil
+	})
+}
+
+var _ = templruntime.GeneratedTemplate

lib/challenge/preact/static/.gitignore

@@ -0,0 +1 @@
+app.js

package-lock.json

@@ -9,7 +9,8 @@
       "version": "1.22.0-pre1",
       "license": "ISC",
       "dependencies": {
-        "@aws-crypto/sha256-js": "^5.2.0"
+        "@aws-crypto/sha256-js": "^5.2.0",
+        "preact": "^10.27.1"
       },
       "devDependencies": {
         "cssnano": "^7.1.1",
@@ -2326,6 +2327,16 @@
         "postcss": "^8.4.32"
       }
     },
+    "node_modules/preact": {
+      "version": "10.27.1",
+      "resolved": "https://registry.npmjs.org/preact/-/preact-10.27.1.tgz",
+      "integrity": "sha512-V79raXEWch/rbqoNc7nT9E4ep7lu+mI3+sBmfRD4i1M73R3WLYcCtdI0ibxGVf4eQL8ZIz2nFacqEC+rmnOORQ==",
+      "license": "MIT",
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/preact"
+      }
+    },
     "node_modules/pretty-hrtime": {
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/pretty-hrtime/-/pretty-hrtime-1.0.3.tgz",

package.json

@@ -28,6 +28,7 @@
     "postcss-url": "^10.1.3"
   },
   "dependencies": {
-    "@aws-crypto/sha256-js": "^5.2.0"
+    "@aws-crypto/sha256-js": "^5.2.0",
+    "preact": "^10.27.1"
   }
 }

test/git-clone/test.sh

@@ -9,6 +9,8 @@ set -u
 
 (
   cd ../.. && \
+  npm ci && \
+  npm run assets \
   ko build --platform=all --base-import-paths --tags="latest" --image-user=1000 --image-annotation="" --image-label="" ./cmd/anubis -L
 )
 

test/git-push/test.sh

@@ -9,6 +9,8 @@ set -u
 
 (
   cd ../.. && \
+  npm ci && \
+  npm run assets \
   ko build --platform=all --base-import-paths --tags="latest" --image-user=1000 --image-annotation="" --image-label="" ./cmd/anubis -L
 )
 

test/healthcheck/test.sh

@@ -9,6 +9,8 @@ set -u
 
 (
   cd ../.. && \
+  npm ci && \
+  npm run assets \
   ko build --platform=all --base-import-paths --tags="latest" --image-user=1000 --image-annotation="" --image-label="" ./cmd/anubis -L
 )