diff --git a/content/gemeinschaft/offene-gemeinschaft/campdays/index.md b/content/gemeinschaft/offene-gemeinschaft/campdays/index.md
index 020e5f5ae05a288628e83109915c920821c44d8a..9c578a4e819e8997cc0fe607e818058c83cb378d 100644
--- a/content/gemeinschaft/offene-gemeinschaft/campdays/index.md
+++ b/content/gemeinschaft/offene-gemeinschaft/campdays/index.md
@@ -4,7 +4,7 @@ title = "Campdays"
 aliases = ["gemeinschaft/campdays"]
 
 [extra.platforms]
-chat = "#teckids/meßdorfer-feld:matrix.teckids.org"
+chat = "meßdorfer-feld:matrix.teckids.org"
 wiki = "de/Gemeinschaft/Austausch/Campdays"
 forum = "teckids/mitgestaltung-und-vereinsleben/25"
 +++
diff --git a/content/gemeinschaft/offene-gemeinschaft/mitmachen/index.md b/content/gemeinschaft/offene-gemeinschaft/mitmachen/index.md
index 5252237837d3a719755da82ae8992cbb5d4f971f..227544cf59d5146f469d00e59ddea4b2950e31fe 100644
--- a/content/gemeinschaft/offene-gemeinschaft/mitmachen/index.md
+++ b/content/gemeinschaft/offene-gemeinschaft/mitmachen/index.md
@@ -4,7 +4,7 @@ title = "Mitmachen"
 aliases = ["gemeinschaft/offene-gemeinschaft"]
 
 [extra.platforms]
-chat = "#teckids/meßdorfer-feld:matrix.teckids.org"
+chat = "meßdorfer-feld:matrix.teckids.org"
 wiki = "de/Gemeinschaft"
 forum = "teckids/mitgestaltung-und-vereinsleben/25"
 
diff --git a/content/gemeinschaft/offene-gemeinschaft/wer.md b/content/gemeinschaft/offene-gemeinschaft/wer.md
index 75d59c31039c2397875268f5a0e40b015b17b1b6..d61af6681e6cee1dacd042c56c9ee65c2661e81c 100644
--- a/content/gemeinschaft/offene-gemeinschaft/wer.md
+++ b/content/gemeinschaft/offene-gemeinschaft/wer.md
@@ -6,7 +6,7 @@ aliases = ["gemeinschaft/wer"]
 [extra.platforms]
 wiki = "de/Gemeinschaft"
 forum = "teckids/mitgestaltung-und-vereinsleben/25"
-chat = "#teckids/meßdorfer-feld:matrix.teckids.org"
+chat = "meßdorfer-feld:matrix.teckids.org"
 +++
 
 {% message(title="Diese Seite ist noch unvollständig") %}
diff --git a/content/projekte/hack-n-fun/tinkering/index.en.md b/content/projekte/hack-n-fun/tinkering/index.en.md
index e7e40c307aa2dd12369e71bef721d63645de83af..317b90090137219390387e8a16e6fce87159fb25 100644
--- a/content/projekte/hack-n-fun/tinkering/index.en.md
+++ b/content/projekte/hack-n-fun/tinkering/index.en.md
@@ -4,7 +4,7 @@ title = "Tinkering"
 [extra.platforms]
 wiki = "de/Projekte/Hack'n'Fun/Tinkering"
 forum = "hacknfun/tinkering/9"
-chat = "#teckids/meßdorfer-feld:matrix.teckids.org"
+chat = "meßdorfer-feld:matrix.teckids.org"
 
 [taxonomies]
 projekt = ["Hack'n'Fun"]
diff --git a/content/projekte/hack-n-fun/tinkering/index.md b/content/projekte/hack-n-fun/tinkering/index.md
index e7e40c307aa2dd12369e71bef721d63645de83af..317b90090137219390387e8a16e6fce87159fb25 100644
--- a/content/projekte/hack-n-fun/tinkering/index.md
+++ b/content/projekte/hack-n-fun/tinkering/index.md
@@ -4,7 +4,7 @@ title = "Tinkering"
 [extra.platforms]
 wiki = "de/Projekte/Hack'n'Fun/Tinkering"
 forum = "hacknfun/tinkering/9"
-chat = "#teckids/meßdorfer-feld:matrix.teckids.org"
+chat = "meßdorfer-feld:matrix.teckids.org"
 
 [taxonomies]
 projekt = ["Hack'n'Fun"]
diff --git a/content/projekte/indiedact/digitale-muendigkeit/index.en.md b/content/projekte/indiedact/digitale-muendigkeit/index.en.md
index 040d6a3e62009549c6f98d4073be6baf73cebe85..2057dcbcad1ad0fcde68eb353f9d5b3951de07cb 100644
--- a/content/projekte/indiedact/digitale-muendigkeit/index.en.md
+++ b/content/projekte/indiedact/digitale-muendigkeit/index.en.md
@@ -8,7 +8,7 @@ zielgruppe = ["Eltern", "Lehrkräfte und Schulen"]
 [extra.platforms]
 #wiki = ""
 #forum = ""
-chat = "#teckids/meßdorfer-feld:matrix.teckids.org"
+chat = "meßdorfer-feld:matrix.teckids.org"
 
 [[extra.further.muendigkeit]]
 image = "muendigkeit_dc.jpg"
diff --git a/content/projekte/indiedact/digitale-muendigkeit/index.md b/content/projekte/indiedact/digitale-muendigkeit/index.md
index 3f314190cf87843eeb5fb05ea4afcc066b9804cb..557f1ee96333ed5635a6e1d40de892c6a4b13c20 100644
--- a/content/projekte/indiedact/digitale-muendigkeit/index.md
+++ b/content/projekte/indiedact/digitale-muendigkeit/index.md
@@ -10,7 +10,7 @@ zielgruppe = ["Eltern", "Lehrkräfte und Schulen"]
 [extra.platforms]
 #wiki = ""
 #forum = ""
-chat = "#teckids/meßdorfer-feld:matrix.teckids.org"
+chat = "meßdorfer-feld:matrix.teckids.org"
 
 [[extra.further.muendigkeit]]
 image = "muendigkeit_dc.jpg"
diff --git a/content/projekte/indiedact/kinder-digitales/index.md b/content/projekte/indiedact/kinder-digitales/index.md
index acd608c1068a24f375ab6e6b53eb63d2e15ecc52..52169bf0f99df1c267195a1139d9b67f56c4a0a2 100644
--- a/content/projekte/indiedact/kinder-digitales/index.md
+++ b/content/projekte/indiedact/kinder-digitales/index.md
@@ -10,7 +10,7 @@ zielgruppe = ["Eltern"]
 [extra.platforms]
 #wiki = ""
 #forum = ""
-chat = "#teckids/meßdorfer-feld:matrix.teckids.org"
+chat = "meßdorfer-feld:matrix.teckids.org"
 
 [[extra.further.literatur]]
 image = "screen-teens.jpg"
diff --git a/content/projekte/indiedact/verstehbarkeit/index.en.md b/content/projekte/indiedact/verstehbarkeit/index.en.md
index 33174ae0ac9c229c195b05e2fc7586fcced2dec4..ef7e4774997648186a8e728993cfc683223296ab 100644
--- a/content/projekte/indiedact/verstehbarkeit/index.en.md
+++ b/content/projekte/indiedact/verstehbarkeit/index.en.md
@@ -14,7 +14,7 @@ zielgruppe = ["Eltern"]
 [extra.platforms]
 wiki = ""
 forum = "hacknfun/tinkering/9"
-chat = "#teckids/meßdorfer-feld:matrix.teckids.org"
+chat = "meßdorfer-feld:matrix.teckids.org"
 +++
 
 Einfach mal schnell ein Computerspiel spielen? Das war bis in die
diff --git a/content/projekte/indiedact/verstehbarkeit/index.md b/content/projekte/indiedact/verstehbarkeit/index.md
index 6569e0eb34111a9e1d8f038cc34de9b7de3c39aa..06ef6035ebe02848f2029be9f94db5c6961a34e8 100644
--- a/content/projekte/indiedact/verstehbarkeit/index.md
+++ b/content/projekte/indiedact/verstehbarkeit/index.md
@@ -16,7 +16,7 @@ zielgruppe = ["Eltern"]
 [extra.platforms]
 wiki = ""
 forum = "hacknfun/tinkering/9"
-chat = "#teckids/meßdorfer-feld:matrix.teckids.org"
+chat = "meßdorfer-feld:matrix.teckids.org"
 +++
 
 Einfach mal schnell ein Computerspiel spielen? Das war bis in die