diff --git a/.github/workflows/issues-bumper.js b/.github/workflows/issues-bumper.js
new file mode 100644
index 0000000..a29f7d3
--- /dev/null
+++ b/.github/workflows/issues-bumper.js
@@ -0,0 +1,144 @@
+async function getSearchIssuesResult(github, repo_name, titleSearchKeyword, page_number) {
+  // repo_name = "microcai/gentoo-zh";
+  searchQuery = `repo:${repo_name} is:issue label:nvchecker in:title ${titleSearchKeyword}`;
+  const searchIssues = await github.rest.search.issuesAndPullRequests({
+    q: searchQuery,
+    per_page: 100,
+    page: page_number,
+  });
+  return searchIssues.data.items;
+}
+
+function getGithubAccount(package) {
+  var toml = require("toml");
+  var fs = require("fs");
+  var tomlFileContent = fs.readFileSync(
+    ".github/workflows/overlay.toml",
+    "utf8"
+  );
+
+  github_account = toml.parse(tomlFileContent)[package]["github_account"];
+
+  return github_account;
+}
+
+module.exports = async ({ github, context, core }) => {
+  // hardcode gentoo-zh official repo name
+  var gig_official_repo_name = "Gig-OS/gig";
+  var repo_name = process.env.GITHUB_REPOSITORY;
+  var repo_is_gig_official = repo_name == gig_official_repo_name;
+
+  let pkgs = JSON.parse(process.env.pkgs);
+  for (let pkg of pkgs) {
+    // // limit "x11-misc/9menu" and "dev-libs/libthai"
+    // if (pkg.name != "x11-misc/9menu" && pkg.name != "dev-libs/libthai") {
+    //   continue;
+    // }
+
+    titlePrefix = "[nvchecker] " + pkg.name + " can be bump to ";
+    title = titlePrefix + pkg.newver;
+    var body = "";
+    if (pkg.oldver != null) {
+      body += "oldver: " + pkg.oldver;
+    }
+
+    // append @github_account to body
+    // only mention user on official gentoo-zh repo
+    github_accounts = getGithubAccount(pkg.name);
+    if (typeof github_accounts == "object") {
+      // multiple accounts example:
+      // github_account = ["st0nie", "peeweep"]
+      body += "\nCC:";
+      for (let github_account of github_accounts) {
+        body += repo_is_gig_official
+          ? " @" + github_account
+          : " " + github_account
+      }
+    } else if (typeof github_accounts == "string") {
+      // single account example:
+      // github_account = "peeweep"
+      body += repo_is_gig_official
+        ? "\nCC: @" + github_accounts
+        : "\nCC: " + github_accounts
+    }
+
+    // if body still empty, convert to null
+    // because github rest api response's issue body is null, they should be same
+    if (body == "") {
+      body = null;
+    }
+
+    // search issues by titlePrefix
+    let issuesData = [];
+    let page_number = 0;
+    while (true) {
+      page_number++;
+      try {
+        const response = await getSearchIssuesResult(
+          github,
+          repo_name,
+          titleSearchKeyword = titlePrefix,
+          page_number
+        );
+        issuesData = issuesData.concat(response);
+        if (response.length < 100) {
+          break;
+        }
+      } catch (error) {
+        core.warning(`Waring ${error}, action may still succeed though`);
+      }
+    }
+
+    (async function () {
+      // search existed in issues
+      for (let issueData of issuesData) {
+        // if titlePrefix matched
+        if (
+          issueData.title.length >= titlePrefix.length
+            ? issueData.title.substring(0, titlePrefix.length) == titlePrefix
+            : false
+        ) {
+          // titlePrefix matched;
+          if (issueData.body == body && issueData.title == title) {
+            // if body and title all matched, goto next loop
+            return;
+          } else {
+            // if body or title not matched
+            if (issueData.state == "open") {
+              // if state is open, edit it, then goto next loop
+              // if (!repo_is_gig_official) {
+              //   // only update on official gentoo-zh repo
+              //   return;
+              // }
+              const issueUpdate = await github.rest.issues.update({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                issue_number: issueData.number,
+                title: title,
+                body: body,
+              });
+              console.log("Edit issue on %s", issueUpdate.data.html_url);
+              return;
+            } else {
+              // if state is clsoe,create new
+              break;
+            }
+          }
+        }
+      }
+      try {
+        // create new issue
+        const issuesCreate = await github.rest.issues.create({
+          owner: context.repo.owner,
+          repo: context.repo.repo,
+          title: title,
+          body: body,
+          labels: ["nvchecker"],
+        });
+        console.log("Created issue on %s", issuesCreate.data.html_url);
+      } catch (error) {
+        core.warning(`Waring ${error}, action may still succeed though`);
+      }
+    })();
+  }
+};
diff --git a/.github/workflows/nvchecker.yml b/.github/workflows/nvchecker.yml
new file mode 100644
index 0000000..a87bad9
--- /dev/null
+++ b/.github/workflows/nvchecker.yml
@@ -0,0 +1,84 @@
+name: nvchecker
+
+on:
+  push:
+  workflow_dispatch:
+  schedule:
+    # * is a special character in YAML so you have to quote this string
+    # UTC 09:00 -> CST (China) 17:00, see https://datetime360.com/cn/utc-cst-china-time/
+    - cron: '0 09 * * *'
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  nvchecker:
+    runs-on: ubuntu-latest
+    container:
+      image: ghcr.io/gig-os/gentoo-testing:master
+
+    steps:
+    - name: checkout
+      uses: actions/checkout@v2
+
+    - name: gentoo
+      run: |
+        # eselect
+        echo "::group::eselect repository add and sync"
+        repo_name=$(cat profiles/repo_name)
+        eselect repository add "$repo_name" git "file://${PWD}"
+        emerge --sync "$repo_name"
+        egencache --jobs=$(nproc) --update --repo "$repo_name" &> /dev/null
+        eix-update
+        echo "::endgroup::"
+        # eix
+        echo "::group::eix search packages"
+        pkgs=$(ACCEPT_LICENSE="*" ACCEPT_KEYWORDS="~amd64" EIX_LIMIT=0 NAMEVERSION="<category>/<name>-<version>\n" eix --pure-packages --in-overlay "$repo_name" --format '<bestversion:NAMEVERSION>')
+        pkgs=$(qatom -F "\"%{CATEGORY}/%{PN}\": \"%{PV}\"," $pkgs) # remove revision
+        echo "$pkgs"
+        pkgs="{ ${pkgs::-1} }"
+        echo "$pkgs" > .github/workflows/old_ver.json
+        cat .github/workflows/old_ver.json
+        echo "::endgroup::"
+
+    - name: nvchecker
+      id: nvchecker
+      run: |
+        echo "::group::nvchecker and nvcmp"
+        cd .github/workflows/
+        echo -e "[keys]\ngithub = \"${{ secrets.GITHUB_TOKEN }}\"" > keyfile.toml
+        nvchecker --file overlay.toml --keyfile keyfile.toml
+
+        sed -r -i \
+          -e 's#(\.|-|_)?a([[:digit:]]+)(",?)$#_alpah\2\3#' \
+          -e 's#(\.|-|_)?p([[:digit:]]+)(",?)$#_p\2\3#' \
+          -e 's#(\.|-|_)?rc([[:digit:]]+)(",?)$#_rc\2\3#' \
+          new_ver.json
+
+        cat new_ver.json
+        echo "nvcmp=$(nvcmp --file overlay.toml --json --newer)" >> $GITHUB_OUTPUT
+
+        echo "::endgroup::"
+
+    - name: setup node
+      uses: actions/setup-node@v2
+      with:
+        node-version: 16
+
+    - name: install github-script depends
+      run: |
+        npm install toml
+
+    - name: update issues
+      uses: actions/github-script@v6
+      timeout-minutes: 1
+      env:
+        pkgs: ${{steps.nvchecker.outputs.nvcmp}}
+      with:
+        github-token: ${{ secrets.NVCHECKER_PAT }} # https://github.com/microcai/gentoo-zh/pull/3130
+        script: |
+          const script = require('./.github/workflows/issues-bumper.js');
+          (async function () {
+            await script({github, context, core});
+          })();
diff --git a/.github/workflows/overlay.toml b/.github/workflows/overlay.toml
new file mode 100644
index 0000000..993f7e3
--- /dev/null
+++ b/.github/workflows/overlay.toml
@@ -0,0 +1,84 @@
+[__config__]
+oldver = "old_ver.json"
+newver = "new_ver.json"
+
+["app-admin/cockpit-benchmark"]
+source = "github"
+github = "45Drives/cockpit-benchmark"
+use_latest_tag = true
+prefix = "v"
+
+["app-admin/cockpit-file-sharing"]
+source = "github"
+github = "45Drives/cockpit-file-sharing"
+use_latest_tag = true
+prefix = "v"
+
+["app-admin/cockpit-machines"]
+source = "github"
+github = "cockpit-project/cockpit-machines"
+use_latest_tag = true
+prefix = "v"
+
+["app-admin/cockpit-navigator"]
+source = "github"
+github = "45Drives/cockpit-navigator"
+use_latest_tag = true
+prefix = "v"
+
+["app-admin/cockpit-zfs-manager"]
+source = "github"
+github = "optimans/cockpit-zfs-manager"
+use_latest_tag = true
+prefix = "v"
+
+["app-admin/cockpit"]
+source = "github"
+github = "cockpit-project/cockpit"
+use_latest_tag = true
+prefix = "v"
+
+["app-emulation/libvirt-dbus"]
+source = "github"
+github = "libvirt/libvirt-dbus"
+use_latest_tag = true
+prefix = "v"
+
+["app-metrics/pcp"]
+source = "github"
+github = "performancecopilot/pcp"
+use_latest_tag = true
+prefix = "v"
+
+["app-misc/tusk"]
+source = "github"
+github = "klauscfhq/tusk"
+use_latest_tag = true
+prefix = "v"
+
+["app-shells/shell-gpt"]
+source = "github"
+github = "TheR1D/shell_gpt"
+use_latest_tag = true
+prefix = "v"
+
+["dev-python/typer"]
+source = "github"
+github = "tiangolo/typer"
+use_latest_tag = true
+prefix = ""
+
+["dev-util/osc"]
+source = "github"
+github = "openSUSE/osc"
+use_latest_tag = true
+prefix = ""
+
+
+["kde-misc/kde-rounded-corners"]
+source = "github"
+github = "matinlotfali/KDE-Rounded-Corners"
+use_latest_tag = true
+prefix = "v"
+
+