diff --git a/lib/main.typ b/lib/main.typ
index 7103a86..4de8d6e 100644
--- a/lib/main.typ
+++ b/lib/main.typ
@@ -2,7 +2,7 @@
 #import "./html_body.typ": html-body
 #import "./html_utils.typ": html-show
 #import "./summary.typ": summary, card-list
-#import "./pyscript.typ": state-use-pyscript, state-pyscript-headers, state-pyscript-version, pyscript-show
+#import "./pyscript.typ": state-use-pyscript, state-pyscript-headers, state-pyscript-version, state-pyscript-interpreters, state-pyscript-default-interpreter, pyscript-show
 #import "./rss.typ": rss
 #import "./icons.typ"
 
@@ -34,8 +34,12 @@
   me-links: (),
   /// Dictionnary of available tags to add in header for each versions of pyscript
   pyscript-headers: (:),
+  /// Dictionnary of available python version to add in header for each pyscript interpreter
+  pyscript-interpreters: (:),
   /// Pyscript version to use
   pyscript-version: none,
+  /// Default python version to use for selecting the pyscript interpreter
+  pyscript-default-interpreter: none,
   //-- Body --
   /// Array of element to add on the top left of the page
   nav-elements: none,
@@ -54,7 +58,9 @@
   assert(type(url) == str, message: "A page must have an url")
   context {
     state-pyscript-headers.update(x => pyscript-headers)
+    state-pyscript-interpreters.update(x => pyscript-interpreters)
     state-pyscript-version.update(x => pyscript-version)
+    state-pyscript-default-interpreter.update(x => pyscript-default-interpreter)
   }
   show: html-show
   show raw.where(block: true, lang: "python"): pyscript-show
diff --git a/lib/pyscript.typ b/lib/pyscript.typ
index 1a72c12..909c235 100644
--- a/lib/pyscript.typ
+++ b/lib/pyscript.typ
@@ -1,6 +1,8 @@
 #let state-use-pyscript = state("state-use-pyscript", false)
 #let state-pyscript-version = state("state-pyscript-version", none)
 #let state-pyscript-headers = state("state-pyscript-headers", (:))
+#let state-pyscript-interpreters = state("state-pyscript-interpreters", (:))
+#let state-pyscript-default-interpreter = state("state-pyscript-default-interpreter", none)
 
 #let get-pep723(script) = {
   script.find(regex(
@@ -39,6 +41,7 @@
     "run", default: true
   ) {
     state-use-pyscript.update(x => true)
+    context {
     let config = metadata.at("tool", default: (:)).at("pyscript", default: (:))
 
     let pyscript-config = (:)
@@ -52,14 +55,24 @@
     let attrs = (
       type: "py"
     )
-    if pyscript-config != (:) {
-      attrs.insert("config", json.encode(pyscript-config))
-    }
-    if true {
+    if true { // TODO: pygame ?
       attrs.insert("terminal", "")
       attrs.insert("worker", "")
     }
 
+    if "interpreter" in config {
+      pyscript-config.insert("interpreter", config.at("interpreter")
+    } else if state-pyscript-default-interpreter.final() != none {
+      assert(
+        state-pyscript-default-interpreter.final() in state-pyscript-interpreters.final(),
+        message: state-pyscript-default-interpreter.final() + " is not in pyscript-interpreters",
+      )
+      pyscript-config.insert("interpreter", state-pyscript-interpreters.final().at(state-pyscript-default-interpreter.final())
+    }
+    if pyscript-config != (:) {
+      attrs.insert("config", json.encode(pyscript-config))
+    }
+
     let script = it.text;
     if config.at("repl", default: false) {
       script = "import code\n" + script + "\ncode.interact(banner='', local=globals())"
@@ -107,4 +120,4 @@
     it
   }
   //raw(block: true, lang: "json", json.encode(metadata))
-}
+}}