diff --git a/animation.py b/animation.py
index 64f7fb0..28abb32 100644
--- a/animation.py
+++ b/animation.py
@@ -120,6 +120,7 @@ class TwoColor(Steady):
     def name(self):
         return str(self)
 
+
 class Caramelldansen(Steady):
     """
         by Max & Lightmoll (https://lght.ml)
@@ -233,9 +234,36 @@ class Chase(Steady):
         return "chase"
 
 
-class ChaseRandom(Animation):
+class Hackertours(Steady):
+    """
+    Base color yellow, with green wandering back and forth
+    """
+    def __init__(self, color, base=(255,255,0), looptime=2.0):
+        super(Hackertours, self).__init__(color)
+        self.looptime = looptime
+        self.base = base
+
+    def update(self, index, count):
+        # angle is the position of the highlight on a circle, range [0, 1]
+        angle = (time() / self.looptime + (index + 0.0) / count) % 1.0
+        # map 0->1, 0.5->0, 1->1 to convert from circle to cylon
+        angle = abs(angle * 2 - 1)
+        l = 1 - min(abs(angle - 1 / count) * .9, 1.0 / count) * count
+        return (
+            int(self.r * l + self.base[0] * (1-l)),
+            int(self.g * l + self.base[1] * (1-l)),
+            int(self.b * l + self.base[2] * (1-l)))
+
+    def __str__(self):
+        return f"{type(self).__name__}({self.r}, {self.g}, {self.b}, {self.looptime:.2f})"
+
+    def name(self):
+        return "hackertours"
+
+
+class ChaseRandom(Steady):
     def __init__(self, color, looptime=1.0):
-        super(Chase, self).__init__(color)
+        super(ChaseRandom, self).__init__(color)
         self.looptime = looptime
 
     def update(self, index, count):
diff --git a/dmx.py b/dmx.py
index cc954de..e1c0410 100644
--- a/dmx.py
+++ b/dmx.py
@@ -47,6 +47,15 @@ class StairvilleLedPar56(RGB):
         dmx.set(self.slot + 6, 255)
 
 
+class ZhennbyPar(RGB):
+    def __init__(self, dmx, slot=1):
+        super(ZhennbyPar, self).__init__(dmx, slot, 1)
+        dmx.set(self.slot + 0, 0)
+        dmx.set(self.slot + 4, 0)
+        dmx.set(self.slot + 5, 0)
+        dmx.set(self.slot + 6, 0)
+
+
 class DMX:
     def __init__(self, host, port=0x1936, universe=1, maxchan=512):
         self._host = host
diff --git a/foobaz.py b/foobaz.py
index 64f02d4..0db4db2 100644
--- a/foobaz.py
+++ b/foobaz.py
@@ -7,7 +7,7 @@ from typing import Tuple
 from bottle import post, request, route, run, static_file, view
 
 from animation import Off
-from dmx import DMX, Bar252, StairvilleLedPar56, REDSpot18RGB
+from dmx import DMX, Bar252, StairvilleLedPar56, REDSpot18RGB, ZhennbyPar
 
 room = ''
 
@@ -74,6 +74,13 @@ def main(args):
             Bar252(dmx, 51),
             Bar252(dmx, 62),
         ]
+    elif args.room == "hackertours":
+        dmx._rgbs = [
+            ZhennbyPar(dmx, 1),
+            ZhennbyPar(dmx, 8),
+            ZhennbyPar(dmx, 15),
+            ZhennbyPar(dmx, 22),
+        ]
     else:
         print(f"Unknown room {args.room}", file=sys.stderr)
         sys.exit(64)
diff --git a/poetry.lock b/poetry.lock
index 38d10b1..0fdf274 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1,18 +1,17 @@
+# This file is automatically @generated by Poetry 1.8.4 and should not be changed by hand.
+
 [[package]]
 name = "bottle"
-version = "0.12.21"
+version = "0.12.25"
 description = "Fast and simple WSGI-framework for small web-applications."
-category = "main"
 optional = false
 python-versions = "*"
+files = [
+    {file = "bottle-0.12.25-py3-none-any.whl", hash = "sha256:d6f15f9d422670b7c073d63bd8d287b135388da187a0f3e3c19293626ce034ea"},
+    {file = "bottle-0.12.25.tar.gz", hash = "sha256:e1a9c94970ae6d710b3fb4526294dfeb86f2cb4a81eff3a4b98dc40fb0e5e021"},
+]
 
 [metadata]
-lock-version = "1.1"
+lock-version = "2.0"
 python-versions = "^3.9"
 content-hash = "861e3ad9d0b00deb876d2ca7797a608f215c7b91ec9b38f367b24bd096a28478"
-
-[metadata.files]
-bottle = [
-    {file = "bottle-0.12.21-py3-none-any.whl", hash = "sha256:6e1c9817019dae3a8c20adacaf09035251798d2ae2fcc8ce43157ee72965f257"},
-    {file = "bottle-0.12.21.tar.gz", hash = "sha256:787c61b6cc02b9c229bf2663011fac53dd8fc197f7f8ad2eeede29d888d7887e"},
-]
diff --git a/pyproject.toml b/pyproject.toml
index 038b5da..f33df46 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -3,6 +3,7 @@ name = "foobazdmx"
 version = "0.1.0"
 description = ""
 authors = ["Stefan Bethke <stb@lassitu.de>"]
+package-mode = false
 
 [tool.poetry.dependencies]
 python = "^3.9"
diff --git a/views/index.tpl b/views/index.tpl
index 580768b..1953385 100644
--- a/views/index.tpl
+++ b/views/index.tpl
@@ -21,6 +21,10 @@
             <input type="radio" class="js_animation" name="state" id="animation_rainbow" value="rainbow"/>
             <label for="animation_rainbow">Rainbow</label>
         </div>
+        <div>
+            <input type="radio" class="js_animation" name="state" id="animation_hackertours" value="hackertours"/>
+            <label for="animation_hackertours">Hackertours</label>
+        </div>
     </fieldset>
     <fieldset class="colors">
         <legend>Color</legend>