diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index f508d98..c12b85a 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -8,8 +8,6 @@ on:
 jobs:
   release:
     runs-on: ${{ matrix.job.os }}
-    outputs:
-      PROJECT_VERSION: ${{ env.PROJECT_VERSION }}
     env:
       PROJECT_NAME: "omekasy"
     strategy:
@@ -34,21 +32,22 @@ jobs:
 
       - name: Get the release version from the tag
         shell: bash
+        id: project_version
         run: |
-          echo "PROJECT_VERSION=${GITHUB_REF#refs/tags/v}" >> "$GITHUB_ENV"
-          echo "Version: ${{ env.PROJECT_VERSION }}"
+          echo "PROJECT_VERSION=${GITHUB_REF#refs/tags/v}" >> "$GITHUB_OUTPUT"
 
       - name: Build release
         run: cargo build --locked --verbose --release --target=${{ matrix.job.target }}
 
       - name: Set up path
         shell: bash
+        id: set_bin_path
         run: |
           EXE_SUFFIX=""
           [ "${{ matrix.job.target }}" = "x86_64-pc-windows-msvc" ] && EXE_SUFFIX=".exe"
 
           BIN_PATH="target/${{ matrix.job.target }}/release/omekasy${EXE_SUFFIX}"
-          echo "BIN_PATH=${BIN_PATH}" >> "${GITHUB_ENV}"
+          echo "BIN_PATH=${BIN_PATH}" >> "$GITHUB_OUTPUT"
 
       - name: Strip binary
         shell: bash
@@ -57,21 +56,22 @@ jobs:
           [ "${{ matrix.job.target }}" = "x86_64-pc-windows-msvc" ] && STRIP=""
 
           if [ -n "${STRIP}" ]; then
-            "${STRIP}" "${{ env.BIN_PATH }}"
+            "${STRIP}" "${{ steps.set_bin_path.outputs.BIN_PATH }}"
           fi
 
       - name: Create tarball
         shell: bash
+        id: create_tarball
         run: |
           PKG_SUFFIX=".tar.gz" ; case "${{ matrix.job.target }}" in *-pc-windows-*) PKG_SUFFIX=".zip" ;; esac;
-          PKG_BASENAME="${PROJECT_NAME}-v${{ env.PROJECT_VERSION }}-${{ matrix.job.target }}"
+          PKG_BASENAME="${PROJECT_NAME}-v${{ steps.project_version.outputs.PROJECT_VERSION }}-${{ matrix.job.target }}"
           PKG_PATH="${PKG_BASENAME}${PKG_SUFFIX}"
           echo "PKG_PATH=${PKG_PATH}" >> "${GITHUB_ENV}"
 
           PKG_DIR="archive"
           mkdir -p "${PKG_DIR}"
           cp {README.md,LICENSE} "$PKG_DIR"
-          cp "${{ env.BIN_PATH }}" "${PKG_DIR}"
+          cp "${{ steps.set_bin_path.outputs.BIN_PATH }}" "${PKG_DIR}"
 
           if [ "${{ matrix.job.os }}" = "windows-2019" ]; then
             7z a "${PKG_PATH}" "${PKG_DIR}"
@@ -87,7 +87,7 @@ jobs:
         if: ${{ contains(github.ref, '/tags/') }}
         uses: softprops/action-gh-release@v1
         with:
-          files: ${{ env.PKG_PATH }}
+          files: ${{ steps.create_tarball.outputs.PKG_PATH }}
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
diff --git a/README.md b/README.md
index 485fc5f..c42d830 100644
--- a/README.md
+++ b/README.md
@@ -51,11 +51,12 @@ Available font for now:
 - bold-fraktur
 - monospace
 - blackboard
+- emoji
 
 Key bindings in interactive mode:
-| Key | Action |
-|---|---|
-|Ctrl-K|Move cursor up|
-|Ctrl-J|Move cursor down|
-|Enter|Select|
-|Ctrl-C, Esc|Quit|
+| Key         | Action           |
+| ----------- | ---------------- |
+| Ctrl-K      | Move cursor up   |
+| Ctrl-J      | Move cursor down |
+| Enter       | Select           |
+| Ctrl-C, Esc | Quit             |
diff --git a/src/convert.rs b/src/convert.rs
index f465a40..a0b4aef 100644
--- a/src/convert.rs
+++ b/src/convert.rs
@@ -24,16 +24,25 @@ impl Converter {
             .font_mappings
             .get(&font)
             .expect("Unexpected font specified");
-        source
-            .iter()
-            .map(|original| {
-                if let Some(converted) = mapping.get(original) {
-                    converted
-                } else {
-                    original
-                }
-            })
-            .collect()
+        let converted = source.iter().map(|original| {
+            if let Some(converted) = mapping.get(original) {
+                converted
+            } else {
+                original
+            }
+        });
+
+        if font == Font::Emoji {
+            // In this application, we want reginal indicator symbols to be rendered as emoji.
+            // To prevent them from being rendered as flags, we insert zero-width joiner(U+200C) between each character.
+            // For a simple implementation, we U+200C between all characters.
+            converted
+                .map(|c| c.to_string())
+                .collect::<Vec<_>>()
+                .join('\u{200C}'.to_string().as_str())
+        } else {
+            converted.collect()
+        }
     }
 }
 
@@ -213,4 +222,16 @@ mod tests {
             converter.convert(&source, Font::Blackboard)
         );
     }
+
+    #[test]
+    fn emoji() {
+        let converter = setup_converter();
+        let source = "8WymXbLV3nINUhOoQkKGfuY9HsZSC675jzBEtATDFMRgPpeaxiJcr0q4l1w2dv"
+            .chars()
+            .collect::<Vec<_>>();
+        assert_eq!(
+            "8‌🇽‌🇾‌🇲‌🇾‌🇧‌🇲‌🇼‌3‌🇳‌🇯‌🇴‌🇻‌🇭‌🇵‌🇴‌🇷‌🇰‌🇱‌🇭‌🇫‌🇺‌🇿‌9‌🇮‌🇸‌🇿‌🇹‌🇩‌6‌7‌5‌🇯‌🇦‌🇨‌🇫‌🇹‌🇧‌🇺‌🇪‌🇬‌🇳‌🇸‌🇬‌🇶‌🇵‌🇪‌🇦‌🇽‌🇮‌🇰‌🇨‌🇷‌0‌🇶‌4‌🇱‌1‌🇼‌2‌🇩‌🇻",
+            converter.convert(&source, Font::Emoji)
+        );
+    }
 }
diff --git a/src/font.rs b/src/font.rs
index 4dcca8f..dcb63c8 100644
--- a/src/font.rs
+++ b/src/font.rs
@@ -18,6 +18,7 @@ pub enum Font {
     BoldFraktur,
     Monospace,
     Blackboard,
+    Emoji,
 }
 
 impl Font {
@@ -39,6 +40,9 @@ impl Font {
             Font::BoldFraktur => "𝖆𝖇𝖈𝖉𝖊𝖋𝖌𝖍𝖎𝖏𝖐𝖑𝖒𝖓𝖔𝖕𝖖𝖗𝖘𝖙𝖚𝖛𝖜𝖝𝖞𝖟𝕬𝕭𝕮𝕯𝕰𝕱𝕲𝕳𝕴𝕵𝕶𝕷𝕸𝕹𝕺𝕻𝕼𝕽𝕾𝕿𝖀𝖁𝖂𝖃𝖄𝖅0123456789",
             Font::Monospace => "𝚊𝚋𝚌𝚍𝚎𝚏𝚐𝚑𝚒𝚓𝚔𝚕𝚖𝚗𝚘𝚙𝚚𝚛𝚜𝚝𝚞𝚟𝚠𝚡𝚢𝚣𝙰𝙱𝙲𝙳𝙴𝙵𝙶𝙷𝙸𝙹𝙺𝙻𝙼𝙽𝙾𝙿𝚀𝚁𝚂𝚃𝚄𝚅𝚆𝚇𝚈𝚉𝟶𝟷𝟸𝟹𝟺𝟻𝟼𝟽𝟾𝟿",
             Font::Blackboard => "𝕒𝕓𝕔𝕕𝕖𝕗𝕘𝕙𝕚𝕛𝕜𝕝𝕞𝕟𝕠𝕡𝕢𝕣𝕤𝕥𝕦𝕧𝕨𝕩𝕪𝕫𝔸𝔹ℂ𝔻𝔼𝔽𝔾ℍ𝕀𝕁𝕂𝕃𝕄ℕ𝕆ℙℚℝ𝕊𝕋𝕌𝕍𝕎𝕏𝕐ℤ𝟘𝟙𝟚𝟛𝟜𝟝𝟞𝟟𝟠𝟡",
+            // Following characters are regional indicator symbols, which is rendered as roman characters surrounded by square in some Websites.
+            // In some editor such as VSCode, A pair 'Z' and 'A' is rendered as South Africa flag.
+            Font::Emoji => "🇦🇧🇨🇩🇪🇫🇬🇭🇮🇯🇰🇱🇲🇳🇴🇵🇶🇷🇸🇹🇺🇻🇼🇽🇾🇦🇧🇨🇩🇪🇫🇬🇭🇮🇯🇰🇱🇲🇳🇴🇵🇶🇷🇸🇹🇺🇻🇼🇽🇾🇿🇿0123456789",
         };
 
         source.chars().zip(target.chars()).collect()