diff --git a/hxlm-js/bootstrapper/lisp/datatype.mjs b/hxlm-js/bootstrapper/lisp/datatype.mjs
index b1b1858..3e0902f 100644
--- a/hxlm-js/bootstrapper/lisp/datatype.mjs
+++ b/hxlm-js/bootstrapper/lisp/datatype.mjs
@@ -1,2 +1,7 @@
 // TODO: this is an draft
-// https://en.wiktionary.org/wiki/dictionarium#Latin
\ No newline at end of file
+// https://en.wiktionary.org/wiki/dictionarium#Latin
+// https://clojure.org/reference/data_structures
+// https://docs.racket-lang.org/guide/datatypes.html
+// Ada:
+//   Strong data type
+//    - https://learn.adacore.com/courses/intro-to-ada/chapters/strongly_typed_language.html
\ No newline at end of file
diff --git a/tests/hdplisp/other-inspirations/ada-extra.adb b/tests/hdplisp/other-inspirations/ada-extra.adb
new file mode 100644
index 0000000..75c6204
--- /dev/null
+++ b/tests/hdplisp/other-inspirations/ada-extra.adb
@@ -0,0 +1,2 @@
+-- TODO: maybe add examples of Ada with contracts
+--       @see https://learn.adacore.com/
\ No newline at end of file
diff --git a/tests/hdplisp/other-inspirations/haskell-math.hs b/tests/hdplisp/other-inspirations/haskell-math.hs
new file mode 100644
index 0000000..b0ec3cb
--- /dev/null
+++ b/tests/hdplisp/other-inspirations/haskell-math.hs
@@ -0,0 +1,11 @@
+{-
+    https://tryhaskell.org/
+
+    Command line interpreter: ghci
+        ghci tests/hdplisp/other-inspirations/haskell-math.hs
+        runhaskell tests/hdplisp/other-inspirations/haskell-math.hs
+-}
+
+main = putStrLn "Hello world!"
+
+values = [1..10]
\ No newline at end of file
diff --git a/tests/hdplisp/other-lisps/clojure-extra.clj b/tests/hdplisp/other-lisps/clojure-extra.clj
new file mode 100644
index 0000000..990c41e
--- /dev/null
+++ b/tests/hdplisp/other-lisps/clojure-extra.clj
@@ -0,0 +1,69 @@
+;; https://en.wikipedia.org/wiki/Clojure
+;; Interpreter:
+;;     clojure
+
+
+(println "Hello world!")
+
+;; define a var
+(def a 42)
+;; => #'user/a
+
+;; call a function named `+`
+(+ a 8)
+;; => 50
+
+;; call a function named `even?`
+(even? a)
+;; => true
+
+;; define a function that returns the remainder of `n` when divided by 10
+(defn foo [n] (rem n 10))
+;; => #'user/foo
+
+;; call the function
+(foo a)
+;; => 2
+
+;; print the docstring of `rem`
+(doc rem)
+;; =>
+;;    -------------------------
+;;    clojure.core/rem
+;;    ([num div])
+;;     remainder of dividing numerator by denominator.
+;;
+
+;; print the source of `rem`
+(source rem)
+;; =>
+;;    (defn rem
+;;      "remainder of dividing numerator by denominator."
+;;      {:added "1.0"
+;;       :static true
+;;       :inline (fn [x y] `(. clojure.lang.Numbers (remainder ~x ~y)))}
+;;      [num div]
+;;        (. clojure.lang.Numbers (remainder num div)))
+
+
+;; define a function (with a docstring) that
+;; returns the remainder of `n` when divided by 10
+(defn foo2 "returns `(rem n 10)`" [n] (rem n 10))
+;; #'user/foo2
+
+(doc foo2)
+;; -------------------------
+;; user/foo2
+;; ([n])
+;;   returns `(rem n 10)`
+;; nil
+
+
+
+;; More structured hello world
+
+;; A typical entry point of a Clojure program:
+;;   `-main` function
+(defn -main ; name
+    [& args] ; (variable) parameters
+    (println "Hello, World!")) ; body
\ No newline at end of file
diff --git a/tests/hdplisp/other-lisps/clojure-math.clj b/tests/hdplisp/other-lisps/clojure-math.clj
new file mode 100644
index 0000000..ad52497
--- /dev/null
+++ b/tests/hdplisp/other-lisps/clojure-math.clj
@@ -0,0 +1,11 @@
+;; https://en.wikipedia.org/wiki/Clojure
+
+
+(+ 1 2 3 4 5 6 7 8 9)
+;; 45
+
+(- 1 2 3 4 5 6 7 8 9)
+;; -43
+
+(quote (+ 1 1))
+;; (+ 1 1)
\ No newline at end of file
diff --git a/tests/hdplisp/other-lisps/common-lisp-extra.cl b/tests/hdplisp/other-lisps/common-lisp-extra.cl
new file mode 100644
index 0000000..7c8953b
--- /dev/null
+++ b/tests/hdplisp/other-lisps/common-lisp-extra.cl
@@ -0,0 +1,6 @@
+;; https://rosettacode.org/wiki/Hello_world/Text#Common_Lisp
+
+
+;; (format t "Hello world!~%")
+
+(print "Hello world!")
diff --git a/tests/hdplisp/other-lisps/racket-extra.rkt b/tests/hdplisp/other-lisps/racket-extra.rkt
new file mode 100644
index 0000000..ed67c62
--- /dev/null
+++ b/tests/hdplisp/other-lisps/racket-extra.rkt
@@ -0,0 +1,3 @@
+#lang racket
+
+(printf "Hello world!\n")
diff --git a/tests/hdplisp/other-lisps/racket-math.rkt b/tests/hdplisp/other-lisps/racket-math.rkt
new file mode 100644
index 0000000..3f86093
--- /dev/null
+++ b/tests/hdplisp/other-lisps/racket-math.rkt
@@ -0,0 +1,11 @@
+#lang racket
+
+
+(+ 1 2 3 4 5 6 7 8 9)
+;; 45
+
+(- 1 2 3 4 5 6 7 8 9)
+;; -43
+
+(quote (+ 1 1))
+;; '(+ 1 1)
\ No newline at end of file
diff --git a/tests/hdplisp/other-lisps/scheme-extra.scm b/tests/hdplisp/other-lisps/scheme-extra.scm
new file mode 100644
index 0000000..a791e66
--- /dev/null
+++ b/tests/hdplisp/other-lisps/scheme-extra.scm
@@ -0,0 +1,10 @@
+;; https://rosettacode.org/wiki/Hello_world/Text#Scheme
+;; https://en.wikipedia.org/wiki/Scheme_(programming_language)
+
+;; R5RS
+(display "Hello world!")
+
+;; R7RS
+(import (scheme base)
+        (scheme write))
+(display "Hello world!")
\ No newline at end of file