Release 1.2.4: export lease table for sibling tools; auto-select single NIC

- Write a lease-table snapshot to %PROGRAMDATA%\vegman\leases.json (contract consumed by vrcx for BMC/SDS discovery)
- Auto-select the network adapter when only one is found (configurable via auto_select_single; asked on first run)

.gitea/workflows/release.yml

@@ -8,24 +8,30 @@ on:
 permissions:
   contents: write
 
+# Self-contained: no external (GitHub-hosted) actions. Runs on a self-hosted
+# Windows runner (label `windows`) that already has Python 3.12 on PATH.
 jobs:
   build:
-    runs-on: windows-latest
+    runs-on: windows
     steps:
-      - uses: actions/checkout@v4
+      - name: Checkout repository at tag
-
+        shell: pwsh
-      - name: Set up Python
+        env:
-        uses: actions/setup-python@v5
+          TOKEN: ${{ github.token }}
-        with:
+        run: |
-          python-version: '3.12'
+          $base = "${{ github.server_url }}" -replace '^https://', ''
+          $url  = "https://oauth2:$env:TOKEN@$base/${{ github.repository }}.git"
+          git clone --depth 1 --branch "$env:GITHUB_REF_NAME" $url .
 
       - name: Install build dependencies
         run: python -m pip install --upgrade pip pyinstaller rich
 
       - name: Resolve version from tag
         id: ver
-        shell: bash
+        shell: pwsh
-        run: echo "version=${GITHUB_REF_NAME#v}" >> "$GITHUB_OUTPUT"
+        run: |
+          $v = "$env:GITHUB_REF_NAME" -replace '^v', ''
+          "version=$v" | Out-File -FilePath $env:GITHUB_OUTPUT -Append -Encoding utf8
 
       - name: Build executable
         run: python -m PyInstaller --onefile --uac-admin --console --name dhcpsrv --icon assets/icon.ico --paths src dhcpsrv-launcher.py
@@ -39,7 +45,6 @@ jobs:
           Copy-Item dist/dhcpsrv.exe $folder/
           @"
           dhcpsrv v$ver - portable edition
-          made by engelgardt
 
           Minimal laptop-side DHCP server for storage/server engineers.
 
@@ -71,10 +76,19 @@ jobs:
           "$hash  $zip" | Out-File -FilePath "$zip.sha256" -Encoding ASCII -NoNewline
           Get-Content "$zip.sha256"
 
-      - name: Create release
+      - name: Publish Gitea release
-        uses: softprops/action-gh-release@v2
+        shell: pwsh
-        with:
+        env:
-          files: |
+          TOKEN: ${{ github.token }}
-            dhcpsrv-portable-v${{ steps.ver.outputs.version }}.zip
+        run: |
-            dhcpsrv-portable-v${{ steps.ver.outputs.version }}.zip.sha256
+          $ver = '${{ steps.ver.outputs.version }}'
-          generate_release_notes: true
+          $tag = "v$ver"
+          $api = "${{ github.server_url }}/api/v1/repos/${{ github.repository }}"
+          $hdr = @{ Authorization = "token $env:TOKEN" }
+          $body = @{ tag_name = $tag; name = $tag; draft = $false; prerelease = $false } | ConvertTo-Json
+          $rel = Invoke-RestMethod -Method Post -Uri "$api/releases" -Headers $hdr -ContentType 'application/json' -Body $body
+          $rid = $rel.id
+          foreach ($f in @("dhcpsrv-portable-v$ver.zip", "dhcpsrv-portable-v$ver.zip.sha256")) {
+            curl.exe -s -H "Authorization: token $env:TOKEN" -F "attachment=@$f" "$api/releases/$rid/assets?name=$f" | Out-Null
+            Write-Host "uploaded $f"
+          }

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -1,56 +0,0 @@
-name: Bug report
-description: Something doesn't work as expected
-labels: ["bug"]
-body:
-  - type: input
-    id: version
-    attributes:
-      label: Version
-      description: Visible in the startup banner.
-      placeholder: v1.1.0
-    validations:
-      required: true
-
-  - type: textarea
-    id: steps
-    attributes:
-      label: Steps to reproduce
-      placeholder: |
-        1. ...
-        2. ...
-        3. ...
-    validations:
-      required: true
-
-  - type: textarea
-    id: expected
-    attributes:
-      label: What you expected to happen
-    validations:
-      required: true
-
-  - type: textarea
-    id: actual
-    attributes:
-      label: What actually happened
-      description: Paste any error output verbatim. Screenshots are welcome.
-    validations:
-      required: true
-
-  - type: input
-    id: os
-    attributes:
-      label: Windows version
-      placeholder: e.g. Windows 11 24H2
-
-  - type: input
-    id: network
-    attributes:
-      label: Network setup (if relevant)
-      placeholder: e.g. USB Realtek NIC to a server's BMC port via an 8-port switch
-
-  - type: textarea
-    id: extra
-    attributes:
-      label: Anything else?
-      description: Workarounds tried, related links, etc.

.github/ISSUE_TEMPLATE/config.yml

@@ -1,5 +0,0 @@
-blank_issues_enabled: false
-contact_links:
-  - name: Security vulnerability
-    url: https://github.com/Engelgardt23/dhcpsrv/security/advisories/new
-    about: Please report security issues privately via GitHub Security Advisories — not as a public issue.

.github/ISSUE_TEMPLATE/feature_request.yml

@@ -1,23 +0,0 @@
-name: Feature request
-description: Suggest a new feature or an improvement
-labels: ["enhancement"]
-body:
-  - type: textarea
-    id: motivation
-    attributes:
-      label: What's the use case?
-      description: What are you trying to do, and why is the current behavior not enough?
-    validations:
-      required: true
-
-  - type: textarea
-    id: proposal
-    attributes:
-      label: Proposed solution
-    validations:
-      required: true
-
-  - type: textarea
-    id: alternatives
-    attributes:
-      label: Alternatives considered

CHANGELOG.md

@@ -6,9 +6,14 @@ The format follows [Keep a Changelog](https://keepachangelog.com/en/1.1.0/), and
 
 ## [Unreleased]
 
+## [1.2.3] - 2026-06-01
+### Changed
+- Project is now fully self-hosted on Gitea (`git.engelgardt23.ru`): update-check, links and badges no longer reference GitHub.
+- CI moved to self-contained Gitea Actions (no GitHub-hosted actions); releases are built on a self-hosted Windows runner and published to the local instance.
+
 ## [1.2.1] - 2026-05-18
 ### Changed
-- The `Update available (vX.Y.Z)` hint in the header is now a clickable hyperlink that opens the GitHub releases page (OSC 8 terminal hyperlink). Modern terminals (Windows Terminal, VS Code, WezTerm, most Linux/macOS terminals) render it as a link — `Ctrl+Click` to follow. Older consoles show the plain text, so nothing breaks.
+- The `Update available (vX.Y.Z)` hint in the header is now a clickable hyperlink that opens the releases page (OSC 8 terminal hyperlink). Modern terminals (Windows Terminal, VS Code, WezTerm, most Linux/macOS terminals) render it as a link — `Ctrl+Click` to follow. Older consoles show the plain text, so nothing breaks.
 - Russian tagline tightened: dropped the `для инженера` phrase, the wording was carried over from an earlier draft and felt out of place.
 
 ## [1.2.0] - 2026-05-18
@@ -35,11 +40,11 @@ The format follows [Keep a Changelog](https://keepachangelog.com/en/1.1.0/), and
 
 ## [1.1.0] - 2026-05-16
 ### Added
-- Auto-update check on startup. Polls GitHub `/releases/latest` with a 3-second timeout. If a newer version is available, prints a yellow notice and offers to open the download page in your browser. Silent on offline / API errors.
+- Auto-update check on startup. Polls the Gitea instance `/releases/latest` with a 3-second timeout. If a newer version is available, prints a yellow notice and offers to open the download page in your browser. Silent on offline / API errors.
 
 ## [1.0.0] - 2026-05-16
 ### Added
-- First public release on GitHub.
+- First public release.
 - Single portable `.exe` (~12 MB) — no Python required on target machines.
 - Full-screen TUI built on `rich`: header with server config + live counters (Leases / Pkts / DISCOVER / REQUEST / RELEASE), clients table (`#`, IP, Hostname, MAC, Last seen, Ping), scrolling events panel.
 - Hardcoded sensible defaults: server `10.10.10.1/24`, pool `10.10.10.2..10.10.10.51` (50 addresses), lease `7200 s`, TFTP option (66/150) = server IP.
@@ -51,11 +56,12 @@ The format follows [Keep a Changelog](https://keepachangelog.com/en/1.1.0/), and
 - Scrollback cleared on startup so mouse-wheel doesn't expose pre-launch text.
 - MIT licensed.
 
-[Unreleased]: https://github.com/Engelgardt23/dhcpsrv/compare/v1.2.1...HEAD
+[Unreleased]: https://git.engelgardt23.ru/engel/dhcpsrv/compare/v1.2.3...HEAD
-[1.2.1]: https://github.com/Engelgardt23/dhcpsrv/compare/v1.2.0...v1.2.1
+[1.2.3]: https://git.engelgardt23.ru/engel/dhcpsrv/compare/v1.2.1...v1.2.3
-[1.2.0]: https://github.com/Engelgardt23/dhcpsrv/compare/v1.1.3...v1.2.0
+[1.2.1]: https://git.engelgardt23.ru/engel/dhcpsrv/compare/v1.2.0...v1.2.1
-[1.1.3]: https://github.com/Engelgardt23/dhcpsrv/compare/v1.1.2...v1.1.3
+[1.2.0]: https://git.engelgardt23.ru/engel/dhcpsrv/compare/v1.1.3...v1.2.0
-[1.1.2]: https://github.com/Engelgardt23/dhcpsrv/compare/v1.1.1...v1.1.2
+[1.1.3]: https://git.engelgardt23.ru/engel/dhcpsrv/compare/v1.1.2...v1.1.3
-[1.1.1]: https://github.com/Engelgardt23/dhcpsrv/compare/v1.1.0...v1.1.1
+[1.1.2]: https://git.engelgardt23.ru/engel/dhcpsrv/compare/v1.1.1...v1.1.2
-[1.1.0]: https://github.com/Engelgardt23/dhcpsrv/compare/v1.0.0...v1.1.0
+[1.1.1]: https://git.engelgardt23.ru/engel/dhcpsrv/compare/v1.1.0...v1.1.1
-[1.0.0]: https://github.com/Engelgardt23/dhcpsrv/releases/tag/v1.0.0
+[1.1.0]: https://git.engelgardt23.ru/engel/dhcpsrv/compare/v1.0.0...v1.1.0
+[1.0.0]: https://git.engelgardt23.ru/engel/dhcpsrv/releases/tag/v1.0.0

CONTRIBUTING.md

@@ -6,15 +6,14 @@
 
 ```
 dhcpsrv/
-├── .github/
+├── .gitea/
-│   ├── workflows/release.yml          ← CI: tag-driven build + GitHub Release
+│   └── workflows/release.yml          ← CI: tag-driven build + Gitea Release
-│   └── ISSUE_TEMPLATE/                ← bug / feature / security routing
 ├── src/dhcpsrv/                       ← package source (≤200 lines per module)
 │   ├── __init__.py                    ← single source of truth for __version__
 │   ├── __main__.py                    ← entry: python -m dhcpsrv
 │   ├── app.py                         ← main flow, wires everything
 │   ├── platform_win.py                ← VT enable + UAC self-elevate
-│   ├── update_check.py                ← GitHub /releases/latest poll
+│   ├── update_check.py                ← Gitea /releases/latest poll
 │   ├── network.py                     ← list_adapters, netsh, ping (no shared state)
 │   ├── dhcp.py                        ← DhcpConfig, DhcpServer, packet parse/build
 │   └── ui.py                          ← rich-based full-screen TUI
@@ -64,7 +63,7 @@ flag tells PyInstaller where to find the `dhcpsrv` package itself. Output:
 4. Tag: `git tag vX.Y.Z`.
 5. Push: `git push && git push --tags`.
 
-That's it. GitHub Actions picks up the tag, builds the exe, writes the SHA-256, and creates the GitHub Release with the zip attached.
+That's it. Gitea Actions picks up the tag, builds the exe, writes the SHA-256, and creates the Gitea Release with the zip attached.
 
 ## Where features go
 
@@ -76,4 +75,4 @@ That's it. GitHub Actions picks up the tag, builds the exe, writes the SHA-256,
 | Something shown in the header | `ui.py` → `Ui._render_header` |
 | A startup check or banner line | `app.py` → `main()` |
 | A change to UAC / VT logic | `platform_win.py` |
-| Tweaking the GitHub update-check UX | `update_check.py` |
+| Tweaking the update-check UX | `update_check.py` |

README.md

@@ -1,6 +1,6 @@
 # dhcpsrv
 
-[![Latest release](https://img.shields.io/github/v/release/Engelgardt23/dhcpsrv)](https://github.com/Engelgardt23/dhcpsrv/releases/latest)
+[![Latest release](https://img.shields.io/gitea/v/release/engel/dhcpsrv?gitea_url=https%3A%2F%2Fgit.engelgardt23.ru&label=release)](https://git.engelgardt23.ru/engel/dhcpsrv/releases/latest)
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](LICENSE)
 
 🇺🇸 English | [🇷🇺 Русский](README.ru.md)
@@ -10,13 +10,11 @@ One double-click — pick a NIC — done. Live table of clients, ping status, pa
 
 Built for the “plug the cable in, watch a BMC pop up with an IP” workflow during firmware updates, recovery, and benchmarks.
 
-> **Made by engelgardt.**
-
 ---
 
 ## Download
 
-Grab the latest release: [**releases page**](https://github.com/Engelgardt23/dhcpsrv/releases/latest).
+Grab the latest release: [**releases page**](https://git.engelgardt23.ru/engel/dhcpsrv/releases/latest).
 The asset is `dhcpsrv-portable-vX.Y.Z.zip` (~12 MB).
 
 ## Run
@@ -39,7 +37,7 @@ The asset is `dhcpsrv-portable-vX.Y.Z.zip` (~12 MB).
 ## What's on screen
 
 ```
-┌─ dhcpsrv v1.0.0  made by engelgardt ────────────────────────────────────┐
+┌─ dhcpsrv v1.0.0 ────────────────────────────────────────────────────────┐
 │ Server: 10.10.10.1/255.255.255.0  Pool: 10.10.10.2–10.10.10.51 …        │
 │ Leases: 3/50  Pkts: 47  DISCOVER: 12  REQUEST: 11  RELEASE: 0           │
 └─────────────────────────────────────────────────────────────────────────┘

README.ru.md

@@ -1,6 +1,6 @@
 # dhcpsrv
 
-[![Последний релиз](https://img.shields.io/github/v/release/Engelgardt23/dhcpsrv)](https://github.com/Engelgardt23/dhcpsrv/releases/latest)
+[![Последний релиз](https://img.shields.io/gitea/v/release/engel/dhcpsrv?gitea_url=https%3A%2F%2Fgit.engelgardt23.ru&label=release)](https://git.engelgardt23.ru/engel/dhcpsrv/releases/latest)
 [![Лицензия: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](LICENSE)
 
 [🇺🇸 English](README.md) | 🇷🇺 Русский
@@ -10,13 +10,11 @@
 
 Сделан под сценарий «воткнул кабель, увидел как BMC получил IP» во время прошивки, восстановления и бенчмарков.
 
-> **Автор: engelgardt.**
-
 ---
 
 ## Скачать
 
-Последний релиз: [**страница релизов**](https://github.com/Engelgardt23/dhcpsrv/releases/latest).
+Последний релиз: [**страница релизов**](https://git.engelgardt23.ru/engel/dhcpsrv/releases/latest).
 Архив `dhcpsrv-portable-vX.Y.Z.zip` (~12 МБ).
 
 ## Запуск

SECURITY.md

@@ -6,16 +6,14 @@ on the host — so vulnerability reports are very welcome.
 
 ## Supported versions
 
-Only the latest tagged release on GitHub is supported. Older versions will not
+Only the latest tagged release is supported. Older versions will not
 get fixes; please upgrade first.
 
 ## How to report a vulnerability
 
 **Please do not open a public issue** for security-sensitive findings.
 
-Use GitHub's private security advisories: go to the
+Report privately by email to the maintainer at engelgardt2024@gmail.com.
-[Security tab](../../security/advisories/new) of this repo and click
-"Report a vulnerability". GitHub will route it privately.
 
 Please include:
 - The version you tested (the startup banner is enough).

pyproject.toml

@@ -13,8 +13,8 @@ dependencies    = ["rich>=13"]
 dynamic         = ["version"]
 
 [project.urls]
-Homepage = "https://github.com/Engelgardt23/dhcpsrv"
+Homepage = "https://git.engelgardt23.ru/engel/dhcpsrv"
-Issues   = "https://github.com/Engelgardt23/dhcpsrv/issues"
+Issues   = "https://git.engelgardt23.ru/engel/dhcpsrv/issues"
 
 [project.scripts]
 dhcpsrv = "dhcpsrv.app:main"

src/dhcpsrv/__init__.py

@@ -1,10 +1,9 @@
 """
 dhcpsrv - portable laptop-side DHCP server for storage/server engineers.
-made by engelgardt
 
 The single source of truth for the project version. Bump this before tagging
 a release; CI reads the tag, the code reads this constant.
 """
 
-__version__ = "1.2.1"
+__version__ = "1.2.4"
-GITHUB_REPO = "Engelgardt23/dhcpsrv"
+REPO = "engel/dhcpsrv"  # self-hosted Gitea (git.engelgardt23.ru)

src/dhcpsrv/app.py

@@ -11,7 +11,7 @@ from rich.console import Console
 from rich.prompt  import Confirm, Prompt
 from rich.table   import Table
 
-from .              import __version__, GITHUB_REPO
+from .              import __version__, REPO
 from .platform_win  import enable_vt, require_admin
 from .update_check  import check_for_update
 from .network       import list_adapters, set_static_ip, revert_to_dhcp
@@ -21,7 +21,7 @@ from .config        import load_config
 from .i18n          import set_language, t
 
 
-def _select_nic(console: Console) -> dict | None:
+def _select_nic(console: Console, auto_single: bool = True) -> dict | None:
     console.rule(f"[bold cyan]{t('available_adapters')}")
     adapters = list_adapters()
     if not adapters:
@@ -30,6 +30,10 @@ def _select_nic(console: Console) -> dict | None:
     for i, a in enumerate(adapters, 1):
         ip = a.get("IPv4") or "—"
         console.print(f"  {i}) [{a['Status']}] {a['Name']}  ({a['Description']})  {ip}")
+    if auto_single and len(adapters) == 1:
+        only = adapters[0]
+        console.print(f"[green]{t('only_adapter', name=only['Name'])}[/]")
+        return only
     while True:
         s = Prompt.ask(t("select_adapter")).strip()
         if s.isdigit() and 1 <= int(s) <= len(adapters):
@@ -53,7 +57,7 @@ def main() -> None:
     title  = f"[bold cyan]dhcpsrv v{__version__}[/] {t('tagline')}"
     latest = check_for_update()
     if latest:
-        release_url = f"https://github.com/{GITHUB_REPO}/releases/latest"
+        release_url = f"https://git.engelgardt23.ru/{REPO}/releases/latest"
         notice      = t("update_available", tag=latest)
         header = Table.grid(expand=True)
         header.add_column(justify="left",  ratio=1)
@@ -64,7 +68,7 @@ def main() -> None:
         console.print(title)
     console.print()
 
-    nic = _select_nic(console)
+    nic = _select_nic(console, cfg_data.get("auto_select_single", True))
     if not nic:
         input(t("press_enter")); return
 

src/dhcpsrv/config.py

@@ -20,16 +20,25 @@ CONFIG_HEADER = """\
 # ---------------------------------------------------------------------------
 # dhcpsrv configuration
 #
-# To change the interface language, edit the 'language' value below.
+# language            : interface language. Valid: en, ru
-# Valid values: en, ru
+# auto_select_single  : auto-pick the network adapter when only one is found,
+#                       without asking (yes/no).
 #
-# Чтобы сменить язык интерфейса, измените значение 'language' ниже.
+# language            : язык интерфейса. Допустимо: en, ru
-# Допустимые значения: en, ru
+# auto_select_single  : автоматически выбирать сетевой адаптер, если он
+#                       единственный, не спрашивая (yes/no).
 # ---------------------------------------------------------------------------
 
 """
 
 
+def _to_bool(s: str, default: bool) -> bool:
+    s = (s or "").strip().lower()
+    if s in ("yes", "true", "y", "1", "on"):  return True
+    if s in ("no",  "false", "n", "0", "off"): return False
+    return default
+
+
 def app_dir() -> Path:
     """Directory holding the running executable (or source folder when run via python)."""
     if getattr(sys, "frozen", False):
@@ -60,10 +69,26 @@ def _ask_language() -> str:
         print("Please enter 1 or 2 / Введите 1 или 2")
 
 
-def _write_config(lang: str) -> None:
+def _ask_auto_select() -> bool:
+    """First-run prompt — auto-select a lone adapter? Bilingual stdin."""
+    print()
+    print("Auto-select the network adapter when only one is found? (y/n)")
+    print("Автовыбор сетевого адаптера, если он единственный? (y/n)")
+    while True:
+        try:
+            c = input("> ").strip().lower()
+        except (EOFError, KeyboardInterrupt):
+            return True
+        if c in ("y", "yes", "д", "да", "1"):  return True
+        if c in ("n", "no",  "н", "нет", "0"): return False
+        print("y / n")
+
+
+def _write_config(lang: str, auto_select: bool) -> None:
     path = config_path()
     cp = configparser.ConfigParser()
-    cp["General"] = {"language": lang}
+    cp["General"] = {"language": lang,
+                     "auto_select_single": "yes" if auto_select else "no"}
     with path.open("w", encoding="utf-8") as f:
         f.write(CONFIG_HEADER)
         cp.write(f)
@@ -75,20 +100,22 @@ def load_config() -> dict:
     path = config_path()
     if not path.exists():
         lang = _ask_language()
+        auto = _ask_auto_select()
         try:
-            _write_config(lang)
+            _write_config(lang, auto)
         except OSError:
             # read-only location — fall back to in-memory default
             pass
-        return {"language": lang}
+        return {"language": lang, "auto_select_single": auto}
 
     cp = configparser.ConfigParser()
     try:
         cp.read(path, encoding="utf-8")
     except (configparser.Error, OSError):
-        return {"language": DEFAULT_LANG}
+        return {"language": DEFAULT_LANG, "auto_select_single": True}
 
     lang = (cp.get("General", "language", fallback=DEFAULT_LANG) or DEFAULT_LANG).strip().lower()
     if lang not in SUPPORTED_LANGS:
         lang = DEFAULT_LANG
-    return {"language": lang}
+    auto = _to_bool(cp.get("General", "auto_select_single", fallback="yes"), True)
+    return {"language": lang, "auto_select_single": auto}

src/dhcpsrv/dhcp.py

@@ -16,6 +16,7 @@ from typing      import Callable, Optional
 
 from .network import ping_one
 from .i18n    import t as _t
+from .leases  import write_leases
 
 
 # ---------- helpers ----------
@@ -147,6 +148,23 @@ class DhcpServer:
         o += bytes([255])
         return bytes(pkt) + bytes(o)
 
+    # --- lease-table export (contract for sibling tools, e.g. vrcx) ---
+    def export_leases(self) -> None:
+        """Snapshot the lease table to the shared JSON file. Best-effort."""
+        with self.lock:
+            leases = [
+                {
+                    "ip":      int2ip(c["ip_int"]),
+                    "mac":     mac,
+                    "host":    c.get("host", ""),
+                    "ping_ok": bool(c.get("ping_ok")),
+                    "last":    c.get("last", ""),
+                }
+                for mac, c in self.clients.items()
+                if c.get("ip_int")
+            ]
+        write_leases(self.cfg.server_ip, leases, now_s())
+
     # --- ping loop, runs in its own thread ---
     def ping_loop(self, stop: threading.Event) -> None:
         from concurrent.futures import ThreadPoolExecutor
@@ -166,6 +184,8 @@ class DhcpServer:
                         changed = True
             if changed:
                 self.on_change()
+            # Refresh the export every tick so its mtime reflects liveness.
+            self.export_leases()
 
     # --- main server loop ---
     def run(self, stop: threading.Event) -> None:

src/dhcpsrv/i18n.py

@@ -23,6 +23,7 @@ STRINGS: dict[str, dict[str, str]] = {
         "update_available":     "Update available ({tag})",
         "available_adapters":   "Available adapters",
         "no_adapters":          "No suitable wired adapters found.",
+        "only_adapter":         "Only one adapter, auto-selected: {name}",
         "select_adapter":       "Select adapter number",
         "invalid_selection":    "Invalid selection.",
         "press_enter":          "Press Enter to exit",
@@ -60,6 +61,7 @@ STRINGS: dict[str, dict[str, str]] = {
         "update_available":     "Доступно обновление ({tag})",
         "available_adapters":   "Доступные адаптеры",
         "no_adapters":          "Подходящие проводные адаптеры не найдены.",
+        "only_adapter":         "Адаптер один, выбран автоматически: {name}",
         "select_adapter":       "Введите номер адаптера",
         "invalid_selection":    "Неверный выбор.",
         "press_enter":          "Нажмите Enter для выхода",

src/dhcpsrv/leases.py

@@ -0,0 +1,51 @@
+"""
+Lease-table export — the shared contract with sibling tools (e.g. vrcx).
+
+dhcpsrv owns the DHCP state; other tools must NOT reach into it. Instead we
+periodically dump a small, self-describing JSON snapshot to a fixed,
+tool-neutral location. Consumers read that file (and judge its freshness by
+the file mtime). No shared code, no network call between the tools.
+
+Default location: %PROGRAMDATA%\\vegman\\leases.json  (override via the
+VEGMAN_LEASES env var). The directory is created on first write.
+"""
+
+from __future__ import annotations
+import json
+import os
+import tempfile
+from pathlib import Path
+
+SCHEMA = 1
+
+
+def leases_path() -> Path:
+    override = os.environ.get("VEGMAN_LEASES")
+    if override:
+        return Path(override)
+    base = os.environ.get("PROGRAMDATA") or os.environ.get("LOCALAPPDATA") or "."
+    return Path(base) / "vegman" / "leases.json"
+
+
+def write_leases(server_ip: str, leases: list[dict], updated: str) -> None:
+    """Atomically write the snapshot. Best-effort: swallow I/O errors so a
+    read-only/locked target can never disturb the DHCP service."""
+    path = leases_path()
+    payload = {
+        "schema":    SCHEMA,
+        "server_ip": server_ip,
+        "updated":   updated,
+        "leases":    leases,
+    }
+    try:
+        path.parent.mkdir(parents=True, exist_ok=True)
+        fd, tmp = tempfile.mkstemp(dir=str(path.parent), prefix=".leases-", suffix=".tmp")
+        try:
+            with os.fdopen(fd, "w", encoding="utf-8") as f:
+                json.dump(payload, f, ensure_ascii=False)
+            os.replace(tmp, path)
+        finally:
+            if os.path.exists(tmp):
+                os.remove(tmp)
+    except OSError:
+        pass

src/dhcpsrv/update_check.py

@@ -1,16 +1,16 @@
 """
 Auto-update check.
 
-On startup, ask GitHub for the latest release tag. If it's newer than the
+On startup, ask the Gitea instance for the latest release tag. If it's newer
-local `__version__`, return the tag string so the caller can show a quiet
+than the local `__version__`, return the tag string so the caller can show a
-hint in the header. Silent on any error (offline, rate-limit, etc.).
+quiet hint in the header. Silent on any error (offline, rate-limit, etc.).
 """
 
 from __future__ import annotations
 import json
 import urllib.request
 
-from . import __version__, GITHUB_REPO
+from . import __version__, REPO
 
 
 def _parse_version(s: str) -> tuple[int, int, int]:
@@ -29,9 +29,8 @@ def check_for_update() -> str | None:
     currently running version. Returns None when up to date, offline, or on
     any error — the caller decides how (or whether) to render the hint."""
     try:
-        url = f"https://api.github.com/repos/{GITHUB_REPO}/releases/latest"
+        url = f"https://git.engelgardt23.ru/api/v1/repos/{REPO}/releases/latest"
         req = urllib.request.Request(url, headers={
-            "Accept":     "application/vnd.github+json",
             "User-Agent": f"dhcpsrv/{__version__}",
         })
         with urllib.request.urlopen(req, timeout=3) as r: