diff --git a/pkg/cat/cater.go b/pkg/cat/cater.go
index 08f9ece..3659039 100644
--- a/pkg/cat/cater.go
+++ b/pkg/cat/cater.go
@@ -67,75 +67,6 @@ func (c Cater) ToString(delemiter string) string {
 	return sb.String()
 }
 
-func (c Cater) ToMarkdown() string {
-	var sb strings.Builder
-
-	write := func(e entry, lvl int) {
-		for range lvl {
-			sb.WriteString("#")
-		}
-		sb.WriteString(fmt.Sprintf(" %s (`%s`)\n", e.name, e.fqname))
-
-		if len(e.content) > 0 {
-			prts := strings.Split(e.name, ".")
-			sb.WriteString(
-				fmt.Sprintf(
-					"```%s\n%s\n```\n\n",
-
-					prts[len(prts)-1],
-					strings.ReplaceAll(
-						e.content,
-						"```",
-						"\\`\\`\\`",
-					),
-				),
-			)
-		}
-	}
-
-	for _, e := range c {
-		e.traverse(1, write)
-	}
-
-	return sb.String()
-}
-
-func (c Cater) ToTypst() string {
-	var sb strings.Builder
-
-	write := func(e entry, lvl int) {
-		for range lvl {
-			sb.WriteString("=")
-		}
-		sb.WriteString(fmt.Sprintf(" %s (`%s`)\n", e.name, e.fqname))
-
-		if len(e.content) > 0 {
-			prts := strings.Split(e.name, ".")
-			sb.WriteString(
-				fmt.Sprintf(
-					"```%s\n%s\n```\n\n",
-
-					prts[len(prts)-1],
-					strings.ReplaceAll(
-						e.content,
-						"```",
-						"\\`\\`\\`",
-					),
-				),
-			)
-		}
-	}
-
-	for _, e := range c {
-
-		sb.WriteString("= Export\n")
-		sb.WriteString("#outline()\n")
-		e.traverse(1, write)
-	}
-
-	return sb.String()
-}
-
 type ignorer interface {
 	// Ignore() returns true when the given path shall be Ignored.
 	Ignore(path string) bool
diff --git a/pkg/cat/markdown.go b/pkg/cat/markdown.go
new file mode 100644
index 0000000..276f53b
--- /dev/null
+++ b/pkg/cat/markdown.go
@@ -0,0 +1,39 @@
+package cat
+
+import (
+	"fmt"
+	"strings"
+)
+
+func (c Cater) ToMarkdown() string {
+	var sb strings.Builder
+
+	write := func(e entry, lvl int) {
+		for range lvl {
+			sb.WriteString("#")
+		}
+		sb.WriteString(fmt.Sprintf(" %s (`%s`)\n", e.name, e.fqname))
+
+		if len(e.content) > 0 {
+			prts := strings.Split(e.name, ".")
+			sb.WriteString(
+				fmt.Sprintf(
+					"```%s\n%s\n```\n\n",
+
+					prts[len(prts)-1],
+					strings.ReplaceAll(
+						e.content,
+						"```",
+						"\\`\\`\\`",
+					),
+				),
+			)
+		}
+	}
+
+	for _, e := range c {
+		e.traverse(1, write)
+	}
+
+	return sb.String()
+}
diff --git a/pkg/cat/internal.go b/pkg/cat/read.go
similarity index 81%
rename from pkg/cat/internal.go
rename to pkg/cat/read.go
index f68cff8..d7cc735 100644
--- a/pkg/cat/internal.go
+++ b/pkg/cat/read.go
@@ -8,6 +8,15 @@ import (
 	"strings"
 )
 
+var INVALID_SUFFIXES = []string{
+	"png",
+	"jpg",
+	"jpeg",
+	"webp",
+	"ico",
+	"ttf",
+}
+
 func (c Cater) dir(dir string) (e entry, err error) {
 	files, err := os.ReadDir(dir)
 	if err != nil {
@@ -27,12 +36,7 @@ func (c Cater) dir(dir string) (e entry, err error) {
 
 		var ent entry
 		if !file.IsDir() {
-			if strings.HasSuffix(path, "png") || // ignore images but hacky :)
-				strings.HasSuffix(path, "jpg") ||
-				strings.HasSuffix(path, "jpeg") ||
-				strings.HasSuffix(path, "ico") ||
-				strings.HasSuffix(path, "ttf") ||
-				strings.HasSuffix(path, "webp") {
+			if !validSuffix(file.Name()) {
 				continue
 			}
 
@@ -82,3 +86,12 @@ func name(name string) string {
 	ps := strings.Split(name, "/")
 	return ps[len(ps)-1]
 }
+
+func validSuffix(name string) bool {
+	for _, s := range INVALID_SUFFIXES {
+		if strings.HasSuffix(name, s) {
+			return false
+		}
+	}
+	return true
+}
diff --git a/pkg/cat/typst.go b/pkg/cat/typst.go
new file mode 100644
index 0000000..f11460f
--- /dev/null
+++ b/pkg/cat/typst.go
@@ -0,0 +1,42 @@
+package cat
+
+import (
+	"fmt"
+	"strings"
+)
+
+func (c Cater) ToTypst() string {
+	var sb strings.Builder
+
+	write := func(e entry, lvl int) {
+		for range lvl {
+			sb.WriteString("=")
+		}
+		sb.WriteString(fmt.Sprintf(" %s (`%s`)\n", e.name, e.fqname))
+
+		if len(e.content) > 0 {
+			prts := strings.Split(e.name, ".")
+			sb.WriteString(
+				fmt.Sprintf(
+					"```%s\n%s\n```\n\n",
+
+					prts[len(prts)-1],
+					strings.ReplaceAll(
+						e.content,
+						"```",
+						"\\`\\`\\`",
+					),
+				),
+			)
+		}
+	}
+
+	for _, e := range c {
+
+		sb.WriteString("= Export\n")
+		sb.WriteString("#outline()\n")
+		e.traverse(1, write)
+	}
+
+	return sb.String()
+}