From 894d0a42de27b724111b4c664b2671be9ddd2eaa Mon Sep 17 00:00:00 2001
From: munechika-koyo <munechika.koyo@gmail.com>
Date: Wed, 3 Jun 2026 16:25:30 +0200
Subject: [PATCH 1/4] =?UTF-8?q?=F0=9F=94=A7=20Add=20environment=20configur?=
 =?UTF-8?q?ation=20for=20binder?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .binder/environment.yml | 6 ++++++
 1 file changed, 6 insertions(+)
 create mode 100644 .binder/environment.yml

diff --git a/.binder/environment.yml b/.binder/environment.yml
new file mode 100644
index 0000000..34b11e8
--- /dev/null
+++ b/.binder/environment.yml
@@ -0,0 +1,6 @@
+name: cherab-imas-nblink-environment
+channels:
+  - conda-forge
+dependencies:
+  - cherab-imas
+  - ultraplot

From 07804bddf8e0255abc6adabff6bbe4fdcbcb5482 Mon Sep 17 00:00:00 2001
From: munechika-koyo <munechika.koyo@gmail.com>
Date: Wed, 3 Jun 2026 16:56:47 +0200
Subject: [PATCH 2/4] =?UTF-8?q?=F0=9F=94=A7=20Refactor=20repository=20URL?=
 =?UTF-8?q?=20handling=20in=20conf.py=20for=20improved=20clarity?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 docs/source/conf.py | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/docs/source/conf.py b/docs/source/conf.py
index a85684f..5710976 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -12,8 +12,9 @@
 copyright = f"2023-{date.today().year}, {author}"
 version_obj = parse(__version__)
 release = version_obj.public
-repository_url = "https://github.com/cherab/imas"
+gh_user_repo = "cherab/imas"
 repository_main_branch = "master"
+repository_url = f"https://github.com/{gh_user_repo}"
 
 # -- General configuration ---------------------------------------------------
 extensions = [
@@ -197,7 +198,9 @@
     <div class="admonition note">
       This page was generated from
       <a class="reference external" href="__REPOSITORY_URL__/blob/{{ env.config.linkcode_blob|e }}/{{ docname|e }}">{{ docname|e }}</a>.
-      <br />
+      <br>
+      Interactive online version:
+      <span style="white-space: nowrap;"><a href="https://mybinder.org/v2/gh/__GH_USER_REPO__/{{ env.config.release|e }}?filepath={{ docname|e }}"><img alt="Binder badge" src="https://mybinder.org/badge_logo.svg" style="vertical-align:text-bottom"></a>.</span>
       <a href="{{ env.docname.split('/')|last|e + '.ipynb' }}" class="reference download internal" download>Download notebook</a>.
       <script>
         if (document.location.host) {
@@ -223,3 +226,4 @@
     \sphinxcode{\sphinxupquote{\strut {{ docname | escape_latex }}}} \dotfill}}
 """
 nbsphinx_prolog = _nbsphinx_prolog_template.replace("__REPOSITORY_URL__", repository_url)
+nbsphinx_prolog = nbsphinx_prolog.replace("__GH_USER_REPO__", gh_user_repo)

From f60e17becaace5998364afcd93f245cf4cc43cf4 Mon Sep 17 00:00:00 2001
From: munechika-koyo <munechika.koyo@gmail.com>
Date: Wed, 3 Jun 2026 16:56:55 +0200
Subject: [PATCH 3/4] =?UTF-8?q?=F0=9F=94=A7=20Update=20emscripten-forge=20?=
 =?UTF-8?q?channel=20URL=20in=20environment.yml=20for=20accuracy?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .nblink/environment.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.nblink/environment.yml b/.nblink/environment.yml
index bdc61d6..91594b1 100644
--- a/.nblink/environment.yml
+++ b/.nblink/environment.yml
@@ -1,6 +1,6 @@
 name: cherab-imas-nblink-environment
 channels:
-  - emscripten-forge
+  - https://prefix.dev/emscripten-forge-4x
   - conda-forge
 dependencies:
   - xeus-python

From 22dc7b285ddb1b151d7d75014d388ef997828008 Mon Sep 17 00:00:00 2001
From: munechika-koyo <munechika.koyo@gmail.com>
Date: Wed, 3 Jun 2026 17:02:41 +0200
Subject: [PATCH 4/4] =?UTF-8?q?=F0=9F=93=9D=20Update=20CHANGELOG=20for=20v?=
 =?UTF-8?q?ersion=200.5.0:=20Add=20binder=20badge=20and=20notebook.link=20?=
 =?UTF-8?q?configuration=20for=20interactive=20demos?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 CHANGELOG.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7aa1b44..91f9b44 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Add `UnstructGrid3D` class and integrate it into the mesh loading workflow
 - Add line-of-sight (LOS) handling utilities and related test scripts
+- Add [binder](https://mybinder.org/) badge and configuration for interactive notebook demos
+- Add notebook.link environment configuration for interactive notebook demos for future use in documentation.
 
 ### Changed