diff --git a/.gitignore b/.gitignore
index 2249be9..8d948cf 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
-cpp/hello-world/.exercism/metadata.json
+*/*/.exercism/metadata.json
+
diff --git a/cpp/hello-world/.gitignore b/cpp/.gitignore
similarity index 100%
rename from cpp/hello-world/.gitignore
rename to cpp/.gitignore
diff --git a/yamlscript/.gitignore b/yamlscript/.gitignore
new file mode 100644
index 0000000..1f59062
--- /dev/null
+++ b/yamlscript/.gitignore
@@ -0,0 +1 @@
+/.local/
diff --git a/yamlscript/hello-world/.exercism/config.json b/yamlscript/hello-world/.exercism/config.json
new file mode 100644
index 0000000..84f96be
--- /dev/null
+++ b/yamlscript/hello-world/.exercism/config.json
@@ -0,0 +1,23 @@
+{
+  "authors": [
+    "ingydotnet"
+  ],
+  "contributors": [
+    "m-dango"
+  ],
+  "files": {
+    "solution": [
+      "hello-world.ys"
+    ],
+    "test": [
+      "hello-world-test.ys",
+      "Makefile"
+    ],
+    "example": [
+      ".meta/hello-world.ys"
+    ]
+  },
+  "blurb": "Exercism's classic introductory exercise. Just say \"Hello, World!\".",
+  "source": "This is an exercise to introduce users to using Exercism",
+  "source_url": "https://en.wikipedia.org/wiki/%22Hello,_world!%22_program"
+}
diff --git a/yamlscript/hello-world/.yamlscript/exercism-ys-installer b/yamlscript/hello-world/.yamlscript/exercism-ys-installer
new file mode 100644
index 0000000..ae3fa01
--- /dev/null
+++ b/yamlscript/hello-world/.yamlscript/exercism-ys-installer
@@ -0,0 +1,127 @@
+#!/env/bin/env bash
+
+set -euo pipefail
+
+intro-prompt() (
+  cat <<...
+--------------------------------------------------------------------------------
+
+This YAMLScript Exercism exercise requires the YAMLScript version $version
+interpreter command file to be installed here:
+
+  $prefix/bin/ys
+
+You can install it by pressing Enter now, or by running this command:
+
+  $make install-ys
+
+This should only take a few seconds and you only need to do this once.
+Other exercises will use the same file.
+
+See https://yamlscript.org/doc/install/ for more YAMLScript installation info.
+
+--------------------------------------------------------------------------------
+
+Would you like to install the 'ys' file now?
+
+...
+
+  printf "Press Enter to install. Ctl-C to Quit."; read -r
+)
+
+main() {
+  setup "$@"
+
+  install-from-local
+
+  $auto && intro-prompt
+
+  installed || install-from-release || true
+  installed || install-from-build || true
+  installed ||
+    die "Installing '$installed' failed. Giving up." \
+        "Consider filing an issue at: $gh_issue_url"
+
+  echo
+  echo 'Success!'
+  echo "$installed is now installed."
+  echo
+}
+
+installed() {
+  [[ -f $installed ]]
+}
+
+install-from-local() {
+  local path
+  path=$(command -v "$ysfq") || true
+  if [[ -f $path ]]; then
+    mkdir -p "$bin"
+    cp "$path" "$bin"/
+    ln -fs "$ysfq" "$bin/ys-0"
+    ln -fs "$ysfq" "$bin/ys"
+    (installed && $auto) && exit
+    true
+  fi
+}
+
+install-from-release() (
+  set -x
+  curl -s https://yamlscript.org/install |
+    BIN=1 VERSION="$version" PREFIX="$prefix" bash
+)
+
+install-from-build() (
+  cat <<...
+
+The binary release installation failed.
+We can attempt to build and install $ysfq now.
+This can take from 1 to 5 minutes to complete.
+
+...
+
+  printf "Press Enter to install. Ctl-C to Quit."; read -r
+
+  [[ -d /tmp && -w /tmp ]] ||
+    die "Can't write to /tmp" \
+        'Giving up.'
+
+  set -x
+
+  rm -fr "$yamlscript_clone"
+
+  git clone --branch="$version" "$yamlscript_repo" "$yamlscript_clone"
+
+  "$make" -C "$yamlscript_clone/ys" install PREFIX="$prefix"
+)
+
+setup() {
+  version=$1
+  prefix=$2
+  make=$3
+  auto=false
+  [[ ${4-} ]] && auto=true
+
+  [[ $version =~ ^0\.1\.[0-9]+$ ]] ||
+    die "Invalid YS_VERSION '$version'"
+
+  bin=$prefix/bin
+  ysfq=ys-$version
+  installed=$bin/$ysfq
+
+  if installed; then
+    echo "'$installed' is already installed."
+    exit
+  fi
+
+  yamlscript_repo=https://github.com/yaml/yamlscript
+  yamlscript_clone=/tmp/yamlscript-exercism
+  gh_issue_url=https://github.com/exercism/yamlscript/issues
+}
+
+die() {
+  printf '%s\n' "$@" >&2
+  exit 1
+}
+
+main "$@"
diff --git a/yamlscript/hello-world/GNUmakefile b/yamlscript/hello-world/GNUmakefile
new file mode 100644
index 0000000..5446a82
--- /dev/null
+++ b/yamlscript/hello-world/GNUmakefile
@@ -0,0 +1,49 @@
+SHELL := bash
+
+BASE := $(shell pwd)
+
+export YS_VERSION := 0.1.96
+
+YS_LOCAL_PREFIX := ../../../.local/v$(YS_VERSION)
+ifeq (,$(shell [[ -d "$(YS_LOCAL_PREFIX)" ]] && echo ok))
+YS_LOCAL_PREFIX := $(shell cd .. && pwd -P)/.local/v$(YS_VERSION)
+endif
+
+YS_LOCAL_BIN := $(YS_LOCAL_PREFIX)/bin
+YS_BIN := $(YS_LOCAL_BIN)/ys-$(YS_VERSION)
+
+YS_INSTALLER := .yamlscript/exercism-ys-installer
+YS_INSTALLER_CMD := \
+  bash $(YS_INSTALLER) $(YS_VERSION) $(YS_LOCAL_PREFIX) $(MAKE)
+
+TEST_FILE ?= $(wildcard *-test.ys)
+
+export PATH := $(YS_LOCAL_BIN):$(PATH)
+export YSPATH := $(BASE)
+
+
+#-------------------------------------------------------------------------------
+default:
+	@echo " No default make rule. Try 'make test'."
+
+test: $(YS_BIN)
+	prove -v $(TEST_FILE)
+
+install-ys:
+	@$(YS_INSTALLER_CMD)
+
+uninstall-ys:
+	rm -fr $(YS_LOCAL_PREFIX)
+
+
+#-------------------------------------------------------------------------------
+ifdef EXERCISM_YAMLSCRIPT_GHA
+$(YS_BIN):
+
+else ifeq (/mnt/,$(dir $(BASE)))
+$(YS_BIN):
+
+else
+$(YS_BIN):
+	@$(YS_INSTALLER_CMD) auto
+endif
diff --git a/yamlscript/hello-world/HELP.md b/yamlscript/hello-world/HELP.md
new file mode 100644
index 0000000..6712528
--- /dev/null
+++ b/yamlscript/hello-world/HELP.md
@@ -0,0 +1,87 @@
+# Help
+
+## Running the tests
+
+To test your solution simply run:
+
+```bash
+make test
+```
+
+This will run the test file `<exercise-name>-test.ys` which contains all of the
+tests that you will need to pass for your solution to be correct.
+You should study the test file to understand exactly what your solution needs
+to do.
+
+> Note: The first time you run `make test` it will also make sure that the
+> correct version of the `ys` YAMLScript interpreter is installed in the
+> correct place.
+
+If you run `make test` before changing any files, all the tests will fail.
+This is the proper and expected behavior.
+The normal exercise development process is to iteratively improve your
+solution, running `make test` after each change, until all the tests pass.
+
+If you want to only run a specific test (while concentrating on that part of the
+solution), you can add this key/value pair to that test:
+
+```yaml
+  ONLY: true
+```
+
+If you want to skip particular tests (while working on other parts of the
+solution), you can add this key/value pair to those tests:
+
+```yaml
+  SKIP: true
+```
+
+
+## Testing Prerequisites
+
+YAMLScript currently runs on MacOS and Linux.
+
+Your computer will need to have the following very common commands installed:
+
+* `bash` - You can run the tests under any shell, but `bash` must be available.
+* `make` - You must use GNU `make` to run the tests.
+  In some environments tt might have a different name than `make`.
+  Possibly `gmake`.
+* `prove` - This program is part of any normal Perl installation.
+* `curl` - Used to install ys if it is not already installed.
+
+It is extremely likely that you already have all of these programs installed.
+
+## Submitting your solution
+
+You can submit your solution using the `exercism submit hello-world.ys` command.
+This command will upload your solution to the Exercism website and print the solution page's URL.
+
+It's possible to submit an incomplete solution which allows you to:
+
+- See how others have completed the exercise
+- Request help from a mentor
+
+## Need to get help?
+
+If you'd like help solving the exercise, check the following pages:
+
+- The [YAMLScript track's documentation](https://exercism.org/docs/tracks/yamlscript)
+- The [YAMLScript track's programming category on the forum](https://forum.exercism.org/c/programming/yamlscript)
+- [Exercism's programming category on the forum](https://forum.exercism.org/c/programming/5)
+- The [Frequently Asked Questions](https://exercism.org/docs/using/faqs)
+
+Should those resources not suffice, you could submit your (incomplete) solution to request mentoring.
+
+If you need help with this YAMLScript exercise, try the following resources:
+
+* [YAMLScript Documentation](https://yamlscript.org/doc/)
+* [YAMLScript Examples - Rosetta Code](
+  https://rosettacode.org/wiki/Category:YAMLScript#mw-pages)
+* [YAMLScript Matrix Chat](https://matrix.to/#/#chat-yamlscript:yaml.io)
+* [YAMLScript Slack Chat](https://clojurians.slack.com/messages/C05HQFMTURF)
+* [YAMLScript IRC Chat](https://web.libera.chat/?channel=yamlscript)
+* [YAMLScript GitHub Discussions](
+  https://github.com/yaml/yamlscript/discussions)
+* [YAMLScript on Stack Overflow](
+  https://stackoverflow.com/questions/tagged/yamlscript)
\ No newline at end of file
diff --git a/yamlscript/hello-world/Makefile b/yamlscript/hello-world/Makefile
new file mode 100644
index 0000000..06b6f00
--- /dev/null
+++ b/yamlscript/hello-world/Makefile
@@ -0,0 +1,8 @@
+# This Makefile is a decoy to attempt to detect when a non-GNU make is being
+# used and alert the user.
+
+test:
+	@echo "You appear to be using a non-GNU version of the 'make' program."
+	@echo "The YAMLScript Exercism track requires you to use GNU make."
+	@echo "Please try 'make $@' again using GNU make."
+	@exit 1
diff --git a/yamlscript/hello-world/README.md b/yamlscript/hello-world/README.md
new file mode 100644
index 0000000..f669dc5
--- /dev/null
+++ b/yamlscript/hello-world/README.md
@@ -0,0 +1,35 @@
+# Hello World
+
+Welcome to Hello World on Exercism's YAMLScript Track.
+If you need help running the tests or submitting your code, check out `HELP.md`.
+
+## Instructions
+
+The classical introductory exercise.
+Just say "Hello, World!".
+
+["Hello, World!"][hello-world] is the traditional first program for beginning programming in a new language or environment.
+
+The objectives are simple:
+
+- Modify the provided code so that it produces the string "Hello, World!".
+- Run the test suite and make sure that it succeeds.
+- Submit your solution and check it at the website.
+
+If everything goes well, you will be ready to fetch your first real exercise.
+
+[hello-world]: https://en.wikipedia.org/wiki/%22Hello,_world!%22_program
+
+## Source
+
+### Created by
+
+- @ingydotnet
+
+### Contributed to by
+
+- @m-dango
+
+### Based on
+
+This is an exercise to introduce users to using Exercism - https://en.wikipedia.org/wiki/%22Hello,_world!%22_program
\ No newline at end of file
diff --git a/yamlscript/hello-world/hello-world-test.ys b/yamlscript/hello-world/hello-world-test.ys
new file mode 100644
index 0000000..9d1cc64
--- /dev/null
+++ b/yamlscript/hello-world/hello-world-test.ys
@@ -0,0 +1,11 @@
+#!/usr/bin/env ys-0
+
+use ys::taptest: :all
+load: 'hello-world.ys'
+
+test::
+- name: Say Hi!
+  code: hello()
+  want: Hello, World!
+
+done: 1
diff --git a/yamlscript/hello-world/hello-world.ys b/yamlscript/hello-world/hello-world.ys
new file mode 100644
index 0000000..5db53f7
--- /dev/null
+++ b/yamlscript/hello-world/hello-world.ys
@@ -0,0 +1,4 @@
+!YS-v0
+
+defn hello():
+  'Hello, World!'