diff --git a/.gitmodules b/.gitmodules
index 9a210e2..6eb6666 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,6 @@
 [submodule "themes/vncnt-hugo"]
 	path = themes/vncnt-hugo
 	url = https://github.com/fncnt/vncnt-hugo
+[submodule "themes/gruvhugo"]
+	path = themes/gruvhugo
+	url = https://gitlab.com/avron/gruvhugo.git
diff --git a/config.toml b/config.toml
index 53752c7..7f144d8 100644
--- a/config.toml
+++ b/config.toml
@@ -8,31 +8,103 @@ enableRobotsTXT = true
 editor = "vi"
 languageCode = "en"
 language = "us"
-theme = "vncnt-hugo"
+theme = "gruvhugo"
 title = "Rico Ullmann · Landing Page"
 
-[blackfriday]
-  extensions = ["hardLineBreak"]
+defaultExtension= "html"
+metaDataFormat= "yaml"
 
-[permalinks]
-  fixed = ":title/"
-  posts = "posts/:slug/"
+[params.main]
+  enabled = true
+  enableKatex = true
+  metaKeywords = "rico, ullmann, wiesbaden"
+  headerTitle = "Rico Ullmann"
+  name = "Rico Ullmann"
+  img = "img/rullmann.jpg"
+  icon = "img/man.png"
+  description= "Fedora fanboy with his thinkpad. Organising projects as a hobby (and for a living). Topics of interest in random order: environmentalism, open source community, queer activism, monitoring/observability, IT security, agile-whatever."
+  licenseUrl = ""
 
-[params]
-  author = "Rico Ullmann"
-  email = "rico@ullmann.space"
-  description = "Landing Page"
-  bio = "Friendly nerd with his Thinkpad. Fedora and monitoring fanboy. For a living? IT Consultant/Project Manager."
-  avatar = "img/rullmann.jpg"
-  favicon = "img/favicon.ico"
-  error404 = "There is no such page."
+ # Social icons
+  [[params.social]]
+    name = "dev"
+    url  = "https://git.ullmann.space"
 
-  [params.contact]
-    fedora = "https://copr.fedorainfracloud.org/coprs/rullmann/"
-    git = "https://git.ullmann.space"
-    github = "https://github.com/rullmann"
-    mastodon = "https://chaos.social/@stillbeben"
-    twitter = "https://twitter.com/stillbeben"
-    xing = "https://www.xing.com/profile/Rico_Ullmann4"
-    linkedin = "https://www.linkedin.com/in/rico-ullmann-1712067b/"
+  [[params.social]]
+    name = "github"
+    url  = "https://github.com/rullmann"
 
+  [[params.social]]
+    name = "xing"
+    url  = "https://www.xing.com/profile/Rico_Ullmann4"
+
+  [[params.social]]
+    name = "linkedin"
+    url  = "https://www.linkedin.com/in/rico-ullmann-1712067b/"
+
+[menu]
+  [[menu.main]]
+    identifier = "impress"
+    name       = "impress"
+    url        = "impress"
+
+[markup]
+  defaultMarkdownHandler = "goldmark"
+  [markup.asciidocExt]
+    backend = "html5"
+    docType = "article"
+    extensions = []
+    failureLevel = "fatal"
+    noHeaderOrFooter = true
+    safeMode = "unsafe"
+    sectionNumbers = false
+    trace = false
+    verbose = true
+    workingFolderCurrent = false
+    [markup.asciidocExt.attributes]
+  [markup.blackFriday]
+    angledQuotes = false
+    footnoteAnchorPrefix = ""
+    footnoteReturnLinkContents = ""
+    fractions = true
+    hrefTargetBlank = false
+    latexDashes = true
+    nofollowLinks = false
+    noreferrerLinks = false
+    plainIDAnchors = true
+    skipHTML = false
+    smartDashes = true
+    smartypants = true
+    smartypantsQuotesNBSP = false
+    taskLists = true
+  [markup.goldmark]
+    [markup.goldmark.extensions]
+      definitionList = true
+      footnote = true
+      linkify = true
+      strikethrough = true
+      table = true
+      taskList = true
+      typographer = true
+    [markup.goldmark.parser]
+      attribute = true
+      autoHeadingID = true
+      autoHeadingIDType = "github"
+    [markup.goldmark.renderer]
+      hardWraps = false
+      unsafe = true
+      xhtml = false
+  [markup.highlight]
+    codeFences = true
+    guessSyntax = false
+    hl_Lines = ""
+    lineNoStart = 1
+    lineNos = false
+    lineNumbersInTable = true
+    noClasses = true
+    style = "monokai"
+    tabWidth = 4
+  [markup.tableOfContents]
+    endLevel = 3
+    ordered = false
+    startLevel = 2
diff --git a/content/impress.md b/content/impress.md
new file mode 100644
index 0000000..8545bea
--- /dev/null
+++ b/content/impress.md
@@ -0,0 +1,21 @@
++++
+title = "impress"
+description = "impress for ullmann.space"
+date = "2021-06-18"
+author = "Rico Ullmann"
++++
+
+# impress / contact information
+
+ullmann.space is my personal page. It does not expose a blog or other editorial content.<br>
+mail.ullmann.space is my personal mail server. It does not provide mail or other services to paying individuals/organisations. It may be used as a mail server for friends.
+
+Deutsche Telekom requires ["a website providing full contact details"](https://postmaster.t-online.de/index.en.html#t4.1) to accept emails from mail.ullmann.space. So here we go:
+
+Rico Ullmann<br>
+Hasengartenstraße 9A<br>
+65189 Wiesbaden<br>
+Germany
+
+Abuse address: abuse@ullmann.space<br>
+Phone: +49 611 98859495
diff --git a/themes/gruvhugo b/themes/gruvhugo
new file mode 160000
index 0000000..7a5d810
--- /dev/null
+++ b/themes/gruvhugo
@@ -0,0 +1 @@
+Subproject commit 7a5d8108f8e3bc7e509ac0a8895f109912093967