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

.gitignore

@@ -7,7 +7,10 @@ dist/
 __pycache__/
 *.py[cod]
 
-# Distribution staging folders (built per-version, attached to GitHub Releases)
+# Local build cache (prod/test/old portable folders per version)
+builds/
+
+# Legacy staging folders (kept for compatibility with old checkouts)
 portable-v*/
 
 # Local backup of release archives (kept locally for history, not in repo)

CHANGELOG.md

@@ -6,6 +6,22 @@ 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 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
+### Added
+- Russian UI translation. On first launch the application asks which language to use (`1) English`, `2) Русский`) and writes the answer to a fresh `config.ini` next to `dhcpsrv.exe`. To change the language later, edit `language = en` / `language = ru` in that file — the comment at the top of the file explains how, in both languages.
+- `config.ini` becomes the future home for other settable defaults (pool, lease, server IP) — currently only `[General] language` is consumed.
+- Bilingual `README.ru.md` linked from the main `README.md`.
+
 ## [1.1.3] - 2026-05-17
 ### Changed
 - Update check no longer interrupts startup with an interactive prompt. If a newer release is available, the header line now shows a quiet `update available (vX.Y.Z)` hint right-aligned in dim grey — no key press required.
@@ -24,11 +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.
@@ -40,9 +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/v1.1.3...HEAD
+[Unreleased]: https://git.engelgardt23.ru/engel/dhcpsrv/compare/v1.2.3...HEAD
-[1.1.3]: https://github.com/Engelgardt23/dhcpsrv/compare/v1.1.2...v1.1.3
+[1.2.3]: https://git.engelgardt23.ru/engel/dhcpsrv/compare/v1.2.1...v1.2.3
-[1.1.2]: https://github.com/Engelgardt23/dhcpsrv/compare/v1.1.1...v1.1.2
+[1.2.1]: https://git.engelgardt23.ru/engel/dhcpsrv/compare/v1.2.0...v1.2.1
-[1.1.1]: https://github.com/Engelgardt23/dhcpsrv/compare/v1.1.0...v1.1.1
+[1.2.0]: https://git.engelgardt23.ru/engel/dhcpsrv/compare/v1.1.3...v1.2.0
-[1.1.0]: https://github.com/Engelgardt23/dhcpsrv/compare/v1.0.0...v1.1.0
+[1.1.3]: https://git.engelgardt23.ru/engel/dhcpsrv/compare/v1.1.2...v1.1.3
-[1.0.0]: https://github.com/Engelgardt23/dhcpsrv/releases/tag/v1.0.0
+[1.1.2]: https://git.engelgardt23.ru/engel/dhcpsrv/compare/v1.1.1...v1.1.2
+[1.1.1]: https://git.engelgardt23.ru/engel/dhcpsrv/compare/v1.1.0...v1.1.1
+[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

@@ -1,20 +1,20 @@
 # 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)
+
 A tiny portable **DHCP server** for the laptop of a storage/server engineer.
 One double-click — pick a NIC — done. Live table of clients, ping status, packet counters. No install, no Python required on the target machine.
 
 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
@@ -37,14 +37,14 @@ 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           │
 └─────────────────────────────────────────────────────────────────────────┘
 ┌─ Clients ───────────────────────────────────────────────────────────────┐
 │  # │ IP           │ Hostname     │ MAC               │ Last seen │ Ping │
-│  1 │ 10.10.10.2   │ vegman-r120  │ a0:c5:f2:13:57:46 │ 17:42:18  │  OK  │
+│  1 │ 10.10.10.2   │ server-01    │ a0:c5:f2:13:57:46 │ 17:42:18  │  OK  │
-│  2 │ 10.10.10.3   │ vegman-s220  │ 70:b3:d5:11:22:33 │ 17:42:21  │  --  │
+│  2 │ 10.10.10.3   │ server-02    │ 70:b3:d5:11:22:33 │ 17:42:21  │  --  │
 └─────────────────────────────────────────────────────────────────────────┘
 ┌─ Events ────────────────────────────────────────────────────────────────┐
 │ [17:42:18] DISCOVER a0:c5:f2:13:57:46 → OFFER 10.10.10.2                │
@@ -54,7 +54,7 @@ The asset is `dhcpsrv-portable-vX.Y.Z.zip` (~12 MB).
 
 ## Typical scenarios
 
-- **VEGMAN with shared LOM** — one cable into the BMC/host port, BMC and the host OS both get IPs from this DHCP.
+- **Server with shared LOM** — one cable into the BMC/host port, BMC and the host OS both get IPs from this DHCP.
 - **8-port switch** — laptop on one port, up to 7 servers on the rest; the 50-address pool covers everyone.
 - **Direct cable into a dedicated Mgmt port** — single client (the BMC).
 

README.ru.md

@@ -0,0 +1,97 @@
+# dhcpsrv
+
+[![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
+
+Маленький портативный **DHCP-сервер** для ноутбука инженера хранения / серверов.
+Двойной клик — выбрал сетевую — готово. Живая таблица клиентов, статус ping, счётчики пакетов. Ничего не устанавливается, Python на целевой машине не нужен.
+
+Сделан под сценарий «воткнул кабель, увидел как BMC получил IP» во время прошивки, восстановления и бенчмарков.
+
+---
+
+## Скачать
+
+Последний релиз: [**страница релизов**](https://git.engelgardt23.ru/engel/dhcpsrv/releases/latest).
+Архив `dhcpsrv-portable-vX.Y.Z.zip` (~12 МБ).
+
+## Запуск
+
+1. Распакуй куда угодно.
+2. Двойной клик по `dhcpsrv.exe`.
+3. **При первом запуске** программа спросит язык интерфейса (1 — English, 2 — Русский). Ответ запишется в `config.ini` рядом с exe — потом можно поменять руками.
+4. Подтверди UAC (admin нужен, чтобы занять UDP/67 и переключить адаптер на статический IP).
+5. Выбери сетевой адаптер, воткнутый в твой сервер или коммутатор — это единственный вопрос.
+6. `Ctrl+C` — стоп. Спросит, вернуть ли адаптер обратно в DHCP.
+
+## Настройки по умолчанию (никаких других вопросов)
+
+| Параметр | Значение |
+|---|---|
+| IP сервера | `10.10.10.1/24` |
+| Пул        | `10.10.10.2 .. 10.10.10.51` (50 адресов) |
+| Lease      | `7200 с` (2 часа — переживёт долгий стресс-тест) |
+| Опция TFTP | IP сервера (BMC сразу увидит твой Tftpd32) |
+
+## Что на экране
+
+```
+┌─ dhcpsrv v1.2.0 ────────────────────────────────────────────────────────┐
+│ Сервер: 10.10.10.1/255.255.255.0  Пул: 10.10.10.2–10.10.10.51 …         │
+│ Аренды: 3/50  Пакетов: 47  DISCOVER: 12  REQUEST: 11  RELEASE: 0        │
+└─────────────────────────────────────────────────────────────────────────┘
+┌─ Клиенты ───────────────────────────────────────────────────────────────┐
+│  # │ IP           │ Имя хоста    │ MAC               │ Последний │ Пинг │
+│  1 │ 10.10.10.2   │ server-01    │ a0:c5:f2:13:57:46 │ 17:42:18  │  OK  │
+│  2 │ 10.10.10.3   │ server-02    │ 70:b3:d5:11:22:33 │ 17:42:21  │  --  │
+└─────────────────────────────────────────────────────────────────────────┘
+┌─ События ───────────────────────────────────────────────────────────────┐
+│ [17:42:18] DISCOVER a0:c5:f2:13:57:46 → OFFER 10.10.10.2                │
+│ [17:42:18] REQUEST  a0:c5:f2:13:57:46 → ACK   10.10.10.2                │
+└─────────────────────────────────────────────────────────────────────────┘
+```
+
+## Типичные сценарии
+
+- **Сервер с общим LOM** — один кабель в порт BMC/host, и BMC и хост-ОС получают IP с этого DHCP.
+- **8-портовый свитч** — ноут на одном порту, до 7 серверов на остальных; пул из 50 адресов покрывает всех.
+- **Прямой кабель в выделенный Mgmt-порт** — один клиент (BMC).
+
+## Совместимость
+
+- Windows 10 / 11.
+- В списке адаптеров отфильтровано всё лишнее (Wi-Fi, Cisco AnyConnect, Hyper-V, VMware, VirtualBox, TAP/TUN, WireGuard, OpenVPN, Tailscale, ZeroTier).
+- Имена адаптеров с пробелами или не-ASCII экранируются корректно для `netsh`.
+
+## Конфиг
+
+При первом запуске рядом с `dhcpsrv.exe` появится `config.ini`:
+
+```ini
+# Чтобы сменить язык интерфейса, измените 'language' ниже.
+# Допустимые значения: en, ru
+[General]
+language = ru
+```
+
+В будущих релизах сюда же переедут пул, lease и IP сервера — пока что переменная одна.
+
+## Заметки
+
+- На машине ничего не устанавливается. Удалить — стереть папку.
+- UAC спросит каждый раз. (Если хочешь убрать на *своей* машине — пропусти `dhcpsrv.exe` через Scheduled Task с галкой «Run with highest privileges» и запускай через `schtasks /run /tn dhcpsrv`.)
+- Если в Tftpd32 включён модуль DHCP — отключи, UDP/67 окажется занят.
+- Lease по умолчанию 7200 с; клиент продлевает в середине срока. Если нужно «навсегда», исходник поддерживает `2147483647` — пересобери из исходников.
+
+## Сборка из исходников
+
+```
+python -m pip install rich pyinstaller
+python -m PyInstaller --onefile --uac-admin --console --name dhcpsrv dhcpsrv-launcher.py
+```
+
+## Лицензия
+
+MIT — см. [LICENSE](LICENSE).

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__ = "1.1.3"
+__version__ = "1.2.4"
-GITHUB_REPO = "Engelgardt23/dhcpsrv"
+REPO = "engel/dhcpsrv"  # self-hosted Gitea (git.engelgardt23.ru)

src/dhcpsrv/app.py

@@ -11,54 +11,69 @@ from rich.console import Console
 from rich.prompt  import Confirm, Prompt
 from rich.table   import Table
 
-from .              import __version__
+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
 from .dhcp          import DhcpConfig, DhcpServer, now_s
 from .ui            import Ui
+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("[bold cyan]Available adapters")
+    console.rule(f"[bold cyan]{t('available_adapters')}")
     adapters = list_adapters()
     if not adapters:
-        console.print("[red]No suitable wired adapters found.[/]")
+        console.print(f"[red]{t('no_adapters')}[/]")
         return 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("Select adapter number").strip()
+        s = Prompt.ask(t("select_adapter")).strip()
         if s.isdigit() and 1 <= int(s) <= len(adapters):
             return adapters[int(s) - 1]
-        console.print("[red]Invalid selection.[/]")
+        console.print(f"[red]{t('invalid_selection')}[/]")
 
 
 def main() -> None:
     enable_vt()
+
+    # Language prompt (writes config.ini on first run) happens BEFORE admin
+    # elevation so the user does not have to answer it twice after the UAC
+    # bounce.
+    cfg_data = load_config()
+    set_language(cfg_data["language"])
+
     require_admin()
 
     console = Console(log_path=False)
 
-    title  = f"[bold cyan]dhcpsrv v{__version__}[/] - portable laptop-side DHCP server"
+    title  = f"[bold cyan]dhcpsrv v{__version__}[/] {t('tagline')}"
     latest = check_for_update()
     if 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)
         header.add_column(justify="right")
-        header.add_row(title, f"[dim]update available ({latest})[/]")
+        header.add_row(title, f"[dim][link={release_url}]{notice}[/link][/]")
         console.print(header)
     else:
         console.print(title)
     console.print()
 
-    nic = _select_nic(console)
+    nic = _select_nic(console, cfg_data.get("auto_select_single", True))
     if not nic:
-        input("Press Enter to exit"); return
+        input(t("press_enter")); return
 
     cfg = DhcpConfig.with_defaults()
-    console.print(f"[yellow]Setting {nic['Name']} → {cfg.server_ip} / {cfg.netmask} ...[/]")
+    console.print(f"[yellow]{t('setting_nic', name=nic['Name'], ip=cfg.server_ip, mask=cfg.netmask)}[/]")
     set_static_ip(nic["Name"], cfg.server_ip, cfg.netmask)
 
     # Wire server <-> ui through callbacks so neither imports the other.
@@ -74,15 +89,15 @@ def main() -> None:
         stop.set()
         try:
             print()
-            print(f"[{now_s()}] Shutting down...")
+            print(t("shutting_down", ts=now_s()))
             try:
-                if Confirm.ask(f"Revert {nic['Name']} back to DHCP?", default=False):
+                if Confirm.ask(t("revert_nic", name=nic["Name"]), default=False):
                     revert_to_dhcp(nic["Name"])
-                    print("NIC reverted to DHCP")
+                    print(t("nic_reverted"))
             except (EOFError, KeyboardInterrupt):
                 pass
         finally:
-            input("Press Enter to exit")
+            input(t("press_enter"))
             sys.exit(0)
 
     signal.signal(signal.SIGINT,  shutdown)

src/dhcpsrv/config.py

@@ -0,0 +1,121 @@
+"""
+config.ini handling next to the executable.
+
+On first run the file does not exist — we ask the user which language to use
+and write the answer alongside the exe. On every subsequent run we just read
+it. The .ini has a leading bilingual comment explaining how to change values
+by editing the file directly.
+"""
+
+from __future__ import annotations
+import configparser
+import sys
+from pathlib import Path
+
+
+SUPPORTED_LANGS = ("en", "ru")
+DEFAULT_LANG    = "en"
+
+CONFIG_HEADER = """\
+# ---------------------------------------------------------------------------
+# dhcpsrv configuration
+#
+# language            : interface language. Valid: en, ru
+# auto_select_single  : auto-pick the network adapter when only one is found,
+#                       without asking (yes/no).
+#
+# language            : язык интерфейса. Допустимо: 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):
+        return Path(sys.executable).resolve().parent
+    return Path(__file__).resolve().parent
+
+
+def config_path() -> Path:
+    return app_dir() / "config.ini"
+
+
+def _ask_language() -> str:
+    """First-run prompt. Stdin is always available in console apps, no Rich here
+    yet (we run before the main console is set up)."""
+    print()
+    print("Select language / Выберите язык:")
+    print("  1) English")
+    print("  2) Русский")
+    while True:
+        try:
+            choice = input("> ").strip()
+        except (EOFError, KeyboardInterrupt):
+            return DEFAULT_LANG
+        if choice == "1":
+            return "en"
+        if choice == "2":
+            return "ru"
+        print("Please enter 1 or 2 / Введите 1 или 2")
+
+
+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,
+                     "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)
+
+
+def load_config() -> dict:
+    """Return the active configuration dict. Side-effect: creates config.ini on
+    first run after prompting the user."""
+    path = config_path()
+    if not path.exists():
+        lang = _ask_language()
+        auto = _ask_auto_select()
+        try:
+            _write_config(lang, auto)
+        except OSError:
+            # read-only location — fall back to in-memory default
+            pass
+        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, "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
+    auto = _to_bool(cp.get("General", "auto_select_single", fallback="yes"), True)
+    return {"language": lang, "auto_select_single": auto}

src/dhcpsrv/dhcp.py

@@ -15,6 +15,8 @@ from datetime    import datetime
 from typing      import Callable, Optional
 
 from .network import ping_one
+from .i18n    import t as _t
+from .leases  import write_leases
 
 
 # ---------- helpers ----------
@@ -146,6 +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
@@ -165,6 +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:
@@ -174,8 +195,8 @@ class DhcpServer:
         try:
             s.bind(("0.0.0.0", 67))
         except OSError as e:
-            self.log(f"[bold red]bind UDP/67 failed:[/] {e}")
+            self.log(f"[bold red]{_t('bind_failed')}[/] {e}")
-            self.log("[yellow]Another DHCP service (Tftpd32 DHCP, ICS, Windows DHCP) may be running.[/]")
+            self.log(f"[yellow]{_t('bind_hint')}[/]")
             stop.set()
             return
 
@@ -200,7 +221,7 @@ class DhcpServer:
                 self.stats["discovers"] += 1
                 ipn = self.alloc_ip(mac)
                 if ipn is None:
-                    self.log(f"[dim][{now_s()}][/] [red]DISCOVER[/] {mac} → [red]POOL EXHAUSTED[/]")
+                    self.log(f"[dim][{now_s()}][/] [red]DISCOVER[/] {mac} → [red]{_t('pool_exhausted')}[/]")
                     continue
                 self.touch_client(mac, ipn, host)
                 s.sendto(self.build_reply(data, 2, ipn), ("255.255.255.255", 68))

src/dhcpsrv/i18n.py

@@ -0,0 +1,117 @@
+"""
+Tiny in-memory translation table. We do not need .po/.mo machinery for a
+two-language CLI tool — a flat dict per language is enough.
+
+Usage:
+    from .i18n import t, set_language
+    set_language("ru")
+    print(t("no_adapters"))
+
+`t(key, **params)` performs `.format(**params)` on the returned string, so
+placeholders work the same way as f-strings.
+"""
+
+from __future__ import annotations
+
+
+_lang = "en"
+
+STRINGS: dict[str, dict[str, str]] = {
+    "en": {
+        # app.py / startup
+        "tagline":              "- portable laptop-side DHCP server",
+        "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",
+        "setting_nic":          "Setting {name} → {ip} / {mask} ...",
+        "shutting_down":        "[{ts}] Shutting down...",
+        "revert_nic":           "Revert {name} back to DHCP?",
+        "nic_reverted":         "NIC reverted to DHCP",
+
+        # dhcp.py / server messages
+        "bind_failed":          "bind UDP/67 failed:",
+        "bind_hint":            "Another DHCP service (Tftpd32 DHCP, ICS, Windows DHCP) may be running.",
+        "pool_exhausted":       "POOL EXHAUSTED",
+
+        # ui.py / header & panels
+        "panel_server":         "Server",
+        "panel_pool":           "Pool",
+        "panel_lease":          "Lease",
+        "panel_tftp":           "TFTP",
+        "panel_leases":         "Leases",
+        "panel_pkts":           "Pkts",
+        "panel_ctrlc":          "Ctrl+C to stop",
+        "col_ip":               "IP",
+        "col_host":             "Hostname",
+        "col_mac":              "MAC",
+        "col_last":             "Last seen",
+        "col_ping":             "Ping",
+        "no_clients":           "(no clients yet)",
+        "more_clients":         "(+{n} more — enlarge the window)",
+        "events_title":         "Events",
+        "clients_title":        "Clients",
+        "no_events":            "(no events yet)",
+    },
+    "ru": {
+        "tagline":              "— портативный DHCP-сервер",
+        "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",
+        "setting_nic":          "Назначаю {name} → {ip} / {mask} ...",
+        "shutting_down":        "[{ts}] Завершение работы...",
+        "revert_nic":           "Вернуть {name} обратно в режим DHCP?",
+        "nic_reverted":         "Адаптер возвращён в режим DHCP",
+
+        "bind_failed":          "не удалось занять UDP/67:",
+        "bind_hint":             "Возможно, уже запущен другой DHCP (модуль DHCP в Tftpd32, ICS, Windows DHCP).",
+        "pool_exhausted":       "ПУЛ ИСЧЕРПАН",
+
+        "panel_server":         "Сервер",
+        "panel_pool":           "Пул",
+        "panel_lease":          "Аренда",
+        "panel_tftp":           "TFTP",
+        "panel_leases":         "Аренды",
+        "panel_pkts":           "Пакетов",
+        "panel_ctrlc":          "Ctrl+C — выход",
+        "col_ip":               "IP",
+        "col_host":             "Имя хоста",
+        "col_mac":              "MAC",
+        "col_last":             "Последний",
+        "col_ping":             "Пинг",
+        "no_clients":           "(клиентов пока нет)",
+        "more_clients":         "(ещё +{n} — увеличьте окно)",
+        "events_title":         "События",
+        "clients_title":        "Клиенты",
+        "no_events":            "(пока пусто)",
+    },
+}
+
+
+def set_language(lang: str) -> None:
+    global _lang
+    if lang in STRINGS:
+        _lang = lang
+
+
+def language() -> str:
+    return _lang
+
+
+def t(key: str, **params) -> str:
+    """Translate `key` for the active language; fall back to English if a key is
+    missing in the chosen language. Apply `.format(**params)` for placeholders."""
+    s = STRINGS.get(_lang, {}).get(key) or STRINGS["en"].get(key, key)
+    if params:
+        try:
+            return s.format(**params)
+        except (KeyError, IndexError):
+            return s
+    return s

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/ui.py

@@ -19,6 +19,7 @@ from rich.text    import Text
 
 from .         import __version__
 from .dhcp     import DhcpServer, int2ip
+from .i18n     import t as _t
 
 
 # Fixed-size layout slots — used to compute the clients-table fit.
@@ -54,27 +55,27 @@ class Ui:
         cfg = self.server.cfg
         body = (
             f"[bold cyan]dhcpsrv v{__version__}[/]\n"
-            f"Server: [bold]{cfg.server_ip}[/]/{cfg.netmask}    "
+            f"{_t('panel_server')}: [bold]{cfg.server_ip}[/]/{cfg.netmask}    "
-            f"Pool: [bold]{int2ip(cfg.pool[0])}–{int2ip(cfg.pool[-1])}[/]    "
+            f"{_t('panel_pool')}: [bold]{int2ip(cfg.pool[0])}–{int2ip(cfg.pool[-1])}[/]    "
-            f"Lease: [bold]{cfg.lease}s[/]    "
+            f"{_t('panel_lease')}: [bold]{cfg.lease}s[/]    "
-            f"TFTP: [bold]{cfg.tftp}[/]\n"
+            f"{_t('panel_tftp')}: [bold]{cfg.tftp}[/]\n"
-            f"Leases: [bold]{leased}/{len(cfg.pool)}[/]    "
+            f"{_t('panel_leases')}: [bold]{leased}/{len(cfg.pool)}[/]    "
-            f"Pkts: [dim]{st['packets']}[/]    "
+            f"{_t('panel_pkts')}: [dim]{st['packets']}[/]    "
             f"DISCOVER: [cyan]{st['discovers']}[/]    "
             f"REQUEST: [green]{st['requests']}[/]    "
             f"RELEASE: [yellow]{st['releases']}[/]    "
-            f"[dim]Ctrl+C to stop[/]"
+            f"[dim]{_t('panel_ctrlc')}[/]"
         )
         return Panel(body, border_style="cyan")
 
     def _render_table(self) -> Table:
-        t = Table(expand=True, header_style="bold")
+        tbl = Table(expand=True, header_style="bold")
-        t.add_column("#",         style="dim", width=3,  justify="right")
+        tbl.add_column("#",              style="dim", width=3,  justify="right")
-        t.add_column("IP",        width=16)
+        tbl.add_column(_t("col_ip"),     width=16)
-        t.add_column("Hostname",  min_width=10)
+        tbl.add_column(_t("col_host"),   min_width=10)
-        t.add_column("MAC",       width=19)
+        tbl.add_column(_t("col_mac"),    width=19)
-        t.add_column("Last seen", style="dim", width=10)
+        tbl.add_column(_t("col_last"),   style="dim", width=10)
-        t.add_column("Ping",      width=6,  justify="center")
+        tbl.add_column(_t("col_ping"),   width=6,  justify="center")
 
         with self.server.lock:
             rows = sorted(self.server.clients.items(), key=lambda kv: kv[1]["ip_int"])
@@ -85,12 +86,12 @@ class Ui:
             rows = rows[: avail - 1]   # leave one slot for the "(+N more)" marker
 
         if not rows:
-            t.add_row("—", "—", "(no clients yet)", "—", "—", "—")
+            tbl.add_row("—", "—", _t("no_clients"), "—", "—", "—")
         else:
             for i, (mac, c) in enumerate(rows, 1):
                 ping = (Text("OK", style="bold green")
                         if c.get("ping_ok") else Text("--", style="bold red"))
-                t.add_row(
+                tbl.add_row(
                     str(i),
                     int2ip(c["ip_int"]),
                     c.get("host") or "—",
@@ -99,20 +100,20 @@ class Ui:
                     ping,
                 )
             if overflow:
-                t.add_row("…", "", f"[dim](+{overflow} more — enlarge the window)[/]", "", "", "")
+                tbl.add_row("…", "", f"[dim]{_t('more_clients', n=overflow)}[/]", "", "", "")
-        return t
+        return tbl
 
     def _render_events(self) -> Panel:
         with self.events_lock:
             last = list(self.events)[-20:]
-        body = "\n".join(last) if last else "[dim](no events yet)[/]"
+        body = "\n".join(last) if last else f"[dim]{_t('no_events')}[/]"
-        return Panel(body, title="Events", border_style="dim")
+        return Panel(body, title=_t("events_title"), border_style="dim")
 
     def _render_screen(self) -> Layout:
         layout = Layout()
         layout.split_column(
             Layout(self._render_header(), name="hdr", size=HEADER_LINES),
-            Layout(Panel(self._render_table(), title="Clients", border_style="cyan"), name="tbl"),
+            Layout(Panel(self._render_table(), title=_t("clients_title"), border_style="cyan"), name="tbl"),
             Layout(self._render_events(),  name="evt", size=EVENTS_LINES),
         )
         return layout

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: