diff --git a/Cargo.lock b/Cargo.lock
index 4e2e12f24..4a57f1dfc 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1546,10 +1546,6 @@ dependencies = [
  "thiserror",
 ]
 
-[[package]]
-name = "fastn-jdebug"
-version = "0.1.0"
-
 [[package]]
 name = "fastn-js"
 version = "0.1.0"
diff --git a/Cargo.toml b/Cargo.toml
index d9714808f..b340ddf2a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -6,7 +6,6 @@ members = [
     "fastn-ds",
     "fastn-expr",
     "fastn-issues",
-    "fastn-jdebug",
     "fastn-js",
     "fastn-lang",
     "fastn-package",
diff --git a/fastn-jdebug/src/lib.rs b/fastn-jdebug/src/lib.rs
deleted file mode 100644
index 73f78314b..000000000
--- a/fastn-jdebug/src/lib.rs
+++ /dev/null
@@ -1,3 +0,0 @@
-pub trait JDebug {
-    fn debug(&self, source: &str) -> serde_json::Value;
-}
diff --git a/v0.5/Cargo.lock b/v0.5/Cargo.lock
index 14a815bce..a1b01354a 100644
--- a/v0.5/Cargo.lock
+++ b/v0.5/Cargo.lock
@@ -88,6 +88,13 @@ dependencies = [
  "serde_json",
 ]
 
+[[package]]
+name = "fastn-jdebug"
+version = "0.1.1"
+dependencies = [
+ "serde_json",
+]
+
 [[package]]
 name = "fastn-lang"
 version = "0.1.0"
@@ -102,6 +109,7 @@ dependencies = [
 name = "fastn-section"
 version = "0.1.0"
 dependencies = [
+ "fastn-jdebug",
  "serde",
  "serde_json",
 ]
@@ -123,6 +131,7 @@ dependencies = [
 name = "fastn-unresolved"
 version = "0.1.0"
 dependencies = [
+ "fastn-jdebug",
  "fastn-section",
  "fastn-type",
  "serde",
diff --git a/v0.5/Cargo.toml b/v0.5/Cargo.toml
index 77f7edc6c..0d8cc30f4 100644
--- a/v0.5/Cargo.toml
+++ b/v0.5/Cargo.toml
@@ -7,6 +7,7 @@ members = [
     "fastn-static",
     "fastn-unresolved",
     "fastn-update",
+    "fastn-jdebug",
 ]
 exclude = []
 resolver = "2"
@@ -39,6 +40,7 @@ homepage = "https://fastn.com"
 
 fastn-lang = { path = "fastn-lang" }
 fastn-type = "0.1.1"
+fastn-jdebug = { version = "0.1.0", path = "fastn-jdebug" }
 fastn-section = { path = "fastn-section" }
 fastn-static = { path = "fastn-static" }
 fastn-core = { path = "fastn-core" }
diff --git a/fastn-jdebug/Cargo.toml b/v0.5/fastn-jdebug/Cargo.toml
similarity index 92%
rename from fastn-jdebug/Cargo.toml
rename to v0.5/fastn-jdebug/Cargo.toml
index 6741d789f..cc5e92e6a 100644
--- a/fastn-jdebug/Cargo.toml
+++ b/v0.5/fastn-jdebug/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "fastn-jdebug"
-version = "0.1.0"
+version = "0.1.1"
 authors.workspace = true
 edition.workspace = true
 description.workspace = true
diff --git a/v0.5/fastn-jdebug/src/lib.rs b/v0.5/fastn-jdebug/src/lib.rs
new file mode 100644
index 000000000..5d742694b
--- /dev/null
+++ b/v0.5/fastn-jdebug/src/lib.rs
@@ -0,0 +1,36 @@
+#![allow(clippy::derive_partial_eq_without_eq, clippy::get_first)]
+#![deny(unused_crate_dependencies)]
+#![warn(clippy::used_underscore_binding)]
+
+extern crate self as fastn_jdebug;
+
+pub trait JDebug {
+    fn debug(&self, source: &str) -> serde_json::Value;
+}
+
+impl<T: fastn_jdebug::JDebug> fastn_jdebug::JDebug for Vec<T> {
+    fn debug(&self, source: &str) -> serde_json::Value {
+        serde_json::Value::Array(self.iter().map(|v| v.debug(source)).collect())
+    }
+}
+
+impl<T: fastn_jdebug::JDebug> fastn_jdebug::JDebug for Option<T> {
+    fn debug(&self, source: &str) -> serde_json::Value {
+        self.as_ref()
+            .map(|v| v.debug(source))
+            .unwrap_or(serde_json::Value::Null)
+    }
+}
+
+impl<K: AsRef<std::ops::Range<usize>>, V: fastn_jdebug::JDebug> fastn_jdebug::JDebug
+    for std::collections::HashMap<K, V>
+{
+    fn debug(&self, source: &str) -> serde_json::Value {
+        let mut o = serde_json::Map::new();
+        for (k, v) in self {
+            let r = k.as_ref();
+            o.insert(source[r.start..r.end].to_string(), v.debug(source));
+        }
+        serde_json::Value::Object(o)
+    }
+}
diff --git a/v0.5/fastn-section/Cargo.toml b/v0.5/fastn-section/Cargo.toml
index 4eff273dd..a369ec24e 100644
--- a/v0.5/fastn-section/Cargo.toml
+++ b/v0.5/fastn-section/Cargo.toml
@@ -10,6 +10,9 @@ homepage.workspace = true
 
 [dependencies]
 serde.workspace = true
+
+[dev-dependencies]
 serde_json.workspace = true
+fastn-jdebug.workspace = true
 
 
diff --git a/v0.5/fastn-section/src/debug.rs b/v0.5/fastn-section/src/debug.rs
index b6b052fa6..be4664bf2 100644
--- a/v0.5/fastn-section/src/debug.rs
+++ b/v0.5/fastn-section/src/debug.rs
@@ -1,62 +1,33 @@
-fn span(s: &fastn_section::Span, key: &str, source: &str) -> serde_json::Value {
-    serde_json::json!({ key: (source[s.start..s.end]).to_string()})
-}
+// fn span(s: &fastn_section::Span, key: &str, source: &str) -> serde_json::Value {
+//     serde_json::json!({ key: (source[s.start..s.end]).to_string()})
+// }
 
-impl fastn_section::JDebug for fastn_section::Span {
+impl fastn_jdebug::JDebug for fastn_section::Span {
     fn debug(&self, source: &str) -> serde_json::Value {
         let t = &source[self.start..self.end];
         if t.is_empty() { "<empty>" } else { t }.into()
     }
 }
 
-impl<T: fastn_section::JDebug> fastn_section::JDebug for fastn_section::Spanned<T> {
+impl<T: fastn_jdebug::JDebug> fastn_jdebug::JDebug for fastn_section::Spanned<T> {
     fn debug(&self, source: &str) -> serde_json::Value {
         self.value.debug(source)
     }
 }
 
-impl fastn_section::JDebug for fastn_section::Spanned<()> {
-    fn debug(&self, source: &str) -> serde_json::Value {
-        span(&self.span, "spanned", source)
-    }
-}
-
-impl<T: fastn_section::JDebug> fastn_section::JDebug for Vec<T> {
-    fn debug(&self, source: &str) -> serde_json::Value {
-        serde_json::Value::Array(self.iter().map(|v| v.debug(source)).collect())
-    }
-}
-
-impl<T: fastn_section::JDebug> fastn_section::JDebug
-    for std::collections::HashMap<fastn_section::Identifier, T>
-{
-    fn debug(&self, source: &str) -> serde_json::Value {
-        let mut o = serde_json::Map::new();
-        for (k, v) in self {
-            o.insert(
-                source[k.name.start..k.name.end].to_string(),
-                v.debug(source),
-            );
-        }
-        serde_json::Value::Object(o)
-    }
-}
-
-impl<T: fastn_section::JDebug> fastn_section::JDebug for Option<T> {
-    fn debug(&self, source: &str) -> serde_json::Value {
-        self.as_ref()
-            .map(|v| v.debug(source))
-            .unwrap_or(serde_json::Value::Null)
-    }
-}
+// impl fastn_jdebug::JDebug for fastn_section::Spanned<()> {
+//     fn debug(&self, source: &str) -> serde_json::Value {
+//         span(&self.span, "spanned", source)
+//     }
+// }
 
-impl fastn_section::JDebug for fastn_section::Visibility {
+impl fastn_jdebug::JDebug for fastn_section::Visibility {
     fn debug(&self, _source: &str) -> serde_json::Value {
         format!("{self:?}").into()
     }
 }
 
-impl fastn_section::JDebug for fastn_section::Document {
+impl fastn_jdebug::JDebug for fastn_section::Document {
     fn debug(&self, source: &str) -> serde_json::Value {
         let mut o = serde_json::Map::new();
         if self.module_doc.is_some() {
@@ -80,7 +51,7 @@ impl fastn_section::JDebug for fastn_section::Document {
     }
 }
 
-impl fastn_section::JDebug for fastn_section::Section {
+impl fastn_jdebug::JDebug for fastn_section::Section {
     fn debug(&self, source: &str) -> serde_json::Value {
         // todo: add headers etc (only if they are not null)
         let mut o = serde_json::Map::new();
@@ -94,13 +65,13 @@ impl fastn_section::JDebug for fastn_section::Section {
     }
 }
 
-impl fastn_section::JDebug for fastn_section::SectionInit {
+impl fastn_jdebug::JDebug for fastn_section::SectionInit {
     fn debug(&self, source: &str) -> serde_json::Value {
         self.name.debug(source)
     }
 }
 
-impl fastn_section::JDebug for fastn_section::KindedName {
+impl fastn_jdebug::JDebug for fastn_section::KindedName {
     fn debug(&self, source: &str) -> serde_json::Value {
         let mut o = serde_json::Map::new();
         if let Some(kind) = &self.kind {
@@ -111,7 +82,7 @@ impl fastn_section::JDebug for fastn_section::KindedName {
     }
 }
 
-impl fastn_section::JDebug for fastn_section::Kind {
+impl fastn_jdebug::JDebug for fastn_section::Kind {
     fn debug(&self, source: &str) -> serde_json::Value {
         if let Some(v) = self.to_identifier() {
             return v.debug(source);
@@ -132,7 +103,7 @@ impl fastn_section::JDebug for fastn_section::Kind {
     }
 }
 
-impl fastn_section::JDebug for fastn_section::QualifiedIdentifier {
+impl fastn_jdebug::JDebug for fastn_section::QualifiedIdentifier {
     fn debug(&self, source: &str) -> serde_json::Value {
         if self.terms.is_empty() {
             return self.module.debug(source);
@@ -145,13 +116,13 @@ impl fastn_section::JDebug for fastn_section::QualifiedIdentifier {
     }
 }
 
-impl fastn_section::JDebug for fastn_section::HeaderValue {
+impl fastn_jdebug::JDebug for fastn_section::HeaderValue {
     fn debug(&self, source: &str) -> serde_json::Value {
         self.0.debug(source)
     }
 }
 
-impl fastn_section::JDebug for fastn_section::Tes {
+impl fastn_jdebug::JDebug for fastn_section::Tes {
     fn debug(&self, source: &str) -> serde_json::Value {
         match self {
             fastn_section::Tes::Text(e) => e.debug(source),
@@ -161,13 +132,13 @@ impl fastn_section::JDebug for fastn_section::Tes {
     }
 }
 
-impl fastn_section::JDebug for fastn_section::Identifier {
+impl fastn_jdebug::JDebug for fastn_section::Identifier {
     fn debug(&self, source: &str) -> serde_json::Value {
         self.name.debug(source)
     }
 }
 
-impl fastn_section::JDebug for fastn_section::PackageName {
+impl fastn_jdebug::JDebug for fastn_section::PackageName {
     fn debug(&self, source: &str) -> serde_json::Value {
         format!(
             "{} as {}",
@@ -178,7 +149,7 @@ impl fastn_section::JDebug for fastn_section::PackageName {
     }
 }
 
-impl fastn_section::JDebug for fastn_section::AliasableIdentifier {
+impl fastn_jdebug::JDebug for fastn_section::AliasableIdentifier {
     fn debug(&self, source: &str) -> serde_json::Value {
         if self.alias.is_none() {
             return self.name.debug(source);
@@ -191,7 +162,7 @@ impl fastn_section::JDebug for fastn_section::AliasableIdentifier {
     }
 }
 
-impl fastn_section::JDebug for fastn_section::ModuleName {
+impl fastn_jdebug::JDebug for fastn_section::ModuleName {
     fn debug(&self, source: &str) -> serde_json::Value {
         if self.path.is_empty()
             && self.name.alias.is_none()
@@ -220,7 +191,7 @@ impl fastn_section::JDebug for fastn_section::ModuleName {
     }
 }
 
-impl fastn_section::JDebug for fastn_section::Error {
+impl fastn_jdebug::JDebug for fastn_section::Error {
     fn debug(&self, source: &str) -> serde_json::Value {
         error(self, &Default::default(), source)
     }
diff --git a/v0.5/fastn-section/src/parser/mod.rs b/v0.5/fastn-section/src/parser/mod.rs
index 1a28d3322..ce98c4b6b 100644
--- a/v0.5/fastn-section/src/parser/mod.rs
+++ b/v0.5/fastn-section/src/parser/mod.rs
@@ -49,7 +49,7 @@ pub fn document(scanner: &mut fastn_section::Scanner<fastn_section::Document>) {
 #[cfg(test)]
 #[track_caller]
 fn p<
-    T: fastn_section::JDebug,
+    T: fastn_jdebug::JDebug,
     F: FnOnce(&mut fastn_section::Scanner<fastn_section::Document>) -> T,
 >(
     source: &str,
diff --git a/v0.5/fastn-unresolved/Cargo.toml b/v0.5/fastn-unresolved/Cargo.toml
index 56a442633..36c2eb07e 100644
--- a/v0.5/fastn-unresolved/Cargo.toml
+++ b/v0.5/fastn-unresolved/Cargo.toml
@@ -14,4 +14,5 @@ serde.workspace = true
 fastn-type.workspace = true
 
 [dev-dependencies]
-serde_json.workspace = true
\ No newline at end of file
+fastn-jdebug.workspace = true
+serde_json.workspace = true
diff --git a/v0.5/fastn-unresolved/src/debug.rs b/v0.5/fastn-unresolved/src/debug.rs
index 0204a01dd..1a50d0426 100644
--- a/v0.5/fastn-unresolved/src/debug.rs
+++ b/v0.5/fastn-unresolved/src/debug.rs
@@ -1,6 +1,6 @@
 use serde_json::Value;
 
-impl fastn_section::JDebug for fastn_unresolved::Import {
+impl fastn_jdebug::JDebug for fastn_unresolved::Import {
     fn debug(&self, source: &str) -> serde_json::Value {
         let mut o = serde_json::Map::new();
 
@@ -33,7 +33,7 @@ impl fastn_section::JDebug for fastn_unresolved::Import {
     }
 }
 
-impl fastn_section::JDebug for fastn_unresolved::Export {
+impl fastn_jdebug::JDebug for fastn_unresolved::Export {
     fn debug(&self, source: &str) -> serde_json::Value {
         match self {
             fastn_unresolved::Export::All => "all".into(),
@@ -44,7 +44,7 @@ impl fastn_section::JDebug for fastn_unresolved::Export {
     }
 }
 
-impl fastn_section::JDebug for fastn_unresolved::AliasableIdentifier {
+impl fastn_jdebug::JDebug for fastn_unresolved::AliasableIdentifier {
     fn debug(&self, _source: &str) -> serde_json::Value {
         match self.alias {
             Some(ref v) => format!("{}=>{}", self.name.0, v.0),
@@ -54,13 +54,13 @@ impl fastn_section::JDebug for fastn_unresolved::AliasableIdentifier {
     }
 }
 
-impl fastn_section::JDebug for fastn_unresolved::ComponentInvocation {
+impl fastn_jdebug::JDebug for fastn_unresolved::ComponentInvocation {
     fn debug(&self, _source: &str) -> Value {
         todo!()
     }
 }
 
-impl<U: fastn_section::JDebug, R: fastn_section::JDebug> fastn_section::JDebug
+impl<U: fastn_jdebug::JDebug, R: fastn_jdebug::JDebug> fastn_jdebug::JDebug
     for fastn_unresolved::UR<U, R>
 {
     fn debug(&self, _source: &str) -> Value {
diff --git a/v0.5/fastn-unresolved/src/parser/component_invocation.rs b/v0.5/fastn-unresolved/src/parser/component_invocation.rs
index 153aea265..c26acfaac 100644
--- a/v0.5/fastn-unresolved/src/parser/component_invocation.rs
+++ b/v0.5/fastn-unresolved/src/parser/component_invocation.rs
@@ -30,7 +30,7 @@ mod tests {
         assert_eq!(d.content.len(), 1);
 
         assert_eq!(
-            fastn_section::JDebug::debug(&d.content.pop().unwrap(), source),
+            fastn_jdebug::JDebug::debug(&d.content.pop().unwrap(), source),
             expected
         )
     }
diff --git a/v0.5/fastn-unresolved/src/parser/import.rs b/v0.5/fastn-unresolved/src/parser/import.rs
index a5353afa0..da478d11e 100644
--- a/v0.5/fastn-unresolved/src/parser/import.rs
+++ b/v0.5/fastn-unresolved/src/parser/import.rs
@@ -115,7 +115,7 @@ mod tests {
         assert_eq!(d.imports.len(), 1);
 
         assert_eq!(
-            fastn_section::JDebug::debug(&d.imports.pop().unwrap(), source),
+            fastn_jdebug::JDebug::debug(&d.imports.pop().unwrap(), source),
             expected
         )
     }