diff --git a/.github/workflows/external_release.yml b/.github/workflows/external_release.yml
index a4c4dc76..e7094f63 100644
--- a/.github/workflows/external_release.yml
+++ b/.github/workflows/external_release.yml
@@ -1,4 +1,4 @@
-name: Release to CurseForge
+name: Release to external sites
 
 on:
   release:
@@ -8,30 +8,90 @@ jobs:
   curseforge_release:
     runs-on: ubuntu-latest
     steps:
-      - name: Checkout Code
-        uses: actions/checkout@v6
-        with:
-          fetch-depth: 0
+      - &parse-paper-versions
+        name: Parse Paper Versions
+        id: parse_versions
+        run: |
+          # Find line declaring Paper versions.
+          raw=$(grep "\\*\\*Paper:\\*\\*" <<< "${{ github.event.release.body }}")
+
+          # Enable extended glob pattern to match 0 or more whitespace characters.
+          shopt -s extglob
+          # Trim Paper versions identifier prefix.
+          raw=${raw/*([[:space:]])'**'Paper:'**'*([[:space:]])/}
+          # Replace commas and optional spaces with a newline.
+          raw=${raw//,*([[:space:]])/$'\n'}
+          # Turn extglob back off.
+          shopt -u extglob
+
+          echo "$raw"
+          printf "PAPER_VERSIONS<<EOF\n%s\nEOF\n" "$raw" >> "$GITHUB_OUTPUT"
 
-      - name: Fetch Github Release Asset
+      - &fetch-release-asset
+        name: Fetch Github Release Asset
         uses: dsaltares/fetch-gh-release-asset@1.1.2
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
           version: ${{ github.event.release.id }}
           file: OpenInv.jar
 
-      - name: Set CurseForge Variables
-        run: . scripts/set_curseforge_env.sh "${{ github.event.release.body }}"
-
       - name: Create CurseForge Release
-        uses: itsmeow/curseforge-upload@v3
+        uses: Kira-NT/mc-publish@v3.3
+        with:
+          curseforge-token: ${{ secrets.CURSEFORGE_TOKEN }}
+          curseforge-id: 31432
+          files: ./OpenInv.jar
+          game-versions: "${{ steps.parse_versions.outputs.PAPER_VERSIONS }}"
+          game-version-filter: releases
+
+  modrinth_release:
+    runs-on: ubuntu-latest
+    steps:
+      - *parse-paper-versions
+      - *fetch-release-asset
+
+      - name: Create Modrinth Release
+        uses: Kira-NT/mc-publish@v3.3
+        with:
+          modrinth-id: 1UlvXbzL
+          modrinth-featured: false
+          modrinth-token: ${{ secrets.MODRINTH_TOKEN }}
+          files: ./OpenInv.jar
+          game-versions: "${{ steps.parse_versions.outputs.PAPER_VERSIONS }}"
+          game-version-filter: releases
+
+  hangar_release:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Parse Hangar Paper Versions
+        id: parse_versions
+        run: |
+          # Find line declaring Paper versions.
+          raw=$(grep "\\*\\*Paper:\\*\\*" <<< "${{ github.event.release.body }}")
+          # Trim Paper versions identifier prefix.
+          raw=${raw/'**'Paper:'**'/}
+
+          # Generate JSON for Hangar. GitHub Actions provides jq 1.7 in the 24.04 image.
+          # Trim, then split on comma and optional spaces.
+          hangar_versions=$(jq -nc --arg versions "$raw" '{"PAPER": $versions | trim | split(", *";null)}')
+
+          echo "$hangar_versions"
+          echo "HANGAR_PAPER_VERSIONS=$hangar_versions" >> "$GITHUB_OUTPUT"
+
+      - *fetch-release-asset
+
+      - name: Create Hangar Release
+        uses: benwoo1110/hangar-upload-action@v1
         with:
-          token: "${{ secrets.CURSEFORGE_TOKEN }}"
-          project_id: 31432
-          game_endpoint: minecraft
-          file_path: ./OpenInv.jar
-          display_name: "${{ github.event.release.name }}"
-          game_versions: "${{ env.CURSEFORGE_MINECRAFT_VERSIONS }}"
-          release_type: release
-          changelog_type: markdown
-          changelog: "${{ github.event.release.body }}"
+          api_token: ${{ secrets.HANGAR_TOKEN }}
+          slug: 'OpenInv'
+          version: ${{ github.event.release.tag_name }}
+          channel: release
+          files: |-
+            [
+              {
+                "path": "./OpenInv.jar",
+                "platforms": ["PAPER"]
+              }
+            ]
+          platform_dependencies: "${{ steps.parse_versions.outputs.HANGAR_PAPER_VERSIONS }}"
diff --git a/scripts/set_curseforge_env.sh b/scripts/set_curseforge_env.sh
deleted file mode 100755
index c75d5202..00000000
--- a/scripts/set_curseforge_env.sh
+++ /dev/null
@@ -1,58 +0,0 @@
-#!/bin/bash
-#
-# Copyright (C) 2011-2021 lishid. All rights reserved.
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, version 3.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program. If not, see <http://www.gnu.org/licenses/>.
-#
-
-# Note that this script is designed for use in GitHub Actions, and is not
-# particularly robust nor configurable. Run from project parent directory.
-
-if [[ ! $1 ]]; then
-  echo "No changelog, no Minecraft versions."
-  exit 0
-fi
-
-# Find line declaring Paper versions.
-raw=$(grep "**Paper:**" <<< "$1")
-
-# Enable extended glob pattern to match 0 or more whitespace characters.
-shopt -s extglob
-# Trim Paper versions identifier prefix.
-raw=${raw##*([[:space:]])'**'Paper:'**'*([[:space:]])}
-# Replace commas and optional spaces with a newline.
-raw=${raw//,*([[:space:]])/$'\n'}
-# Turn extglob back off.
-shopt -u extglob
-
-# Split into an array on newlines.
-readarray -td $'\n' versions <<< "${raw}"
-
-for version in "${versions[@]}"; do
-  # Parse Minecraft minor version by dropping everything from the second period onward.
-  # CurseForge doesn't usually add patch versions for Bukkit, so we're more likely to
-  # hit a supported identifier this way.
-  version="${version%[.-]"${version#*.*[.-]}"}"
-
-  # Skip already listed versions
-  if [[ "$minecraft_versions" =~ "$version"($|,) ]]; then
-    continue
-  fi
-
-  # Append comma if variable is set, then append version.
-  # Note that Minecraft versions on CurseForge are declared "Minecraft x.y.z"
-  minecraft_versions="${minecraft_versions:+${minecraft_versions},}Minecraft ${version}"
-done
-
-printf "$minecraft_versions\n"
-#echo "CURSEFORGE_MINECRAFT_VERSIONS=$minecraft_versions" >> "$GITHUB_ENV"