- Added `_detect_lang()` helper to `modules/utils.sh` (extracts first 2 chars from `$LANG`, fallback to `en`).
- Created `_detect_lang_pkg()` utility for LibreOffice localization: handles regional variants (`es-ar` → `es`) and skips English packages.
- Implemented `_check_network()` with cascade methods (ping→wget→curl) in `modules/utils.sh`. Warning-only pre-flight check after `check_sudo` in `debianito.sh`, compatible with `set -euo pipefail`.
- Fixed system time validation: changed `2026` threshold to `2025` in `check_system_time()` (replaced self-referential `$(date +%Y)` which always evaluated false).
- Refactored LibreOffice language selection in `office.sh`: replaced 10 lines of inline logic with `_detect_lang_pkg "libreoffice-l10n"`.
- Overhauled Firefox ESR integration in `internet.sh`: added state detection, mutual exclusion guard (both Firefox variants selected → warning), new `install_firefox_esr()` function with language support.
- Updated `install_firefox_mozilla()`: added Debian version guard (`<12`), replaced `_run_install` with `_run_cmd`.
- Standardized header in internet menu and improved whiptail UX for Firefox options.
- NVIDIA CUDA extrepo refactor in `modules/gpu/nvidia.sh`: removed unnecessary `i386_active` lines, updated warning to reference `v590 (unified metapackage)`, simplified installation from 18+10 versioned packages → `nvidia-driver-pinning-590 nvidia-driver firmware-nvidia-gsp`, eliminated `apt-mark hold` since pinning packages now handle it. DKMS verification and `NVIDIA_DRIVER_MODE="cuda-repo"` preserved.
- CUDA repo case fix in `modules/gaming.sh`: replaced silent bypass with detection of `nvidia-driver-libs:i386` v590 installation; if missing, prompts user confirmation before installing via active CUDA repo + pinning.
- Palemoon internet module overhaul (`modules/extras/internet/internet.sh`): removed deprecated `_enable_palemoon_repo()`, created new `install_palemoon()` with AVX2→AVX→SSE2 CPU detection from `/proc/cpuinfo`, proper `extrepo enable` call, and package installation.
- ProtonVPN module rewrite (`modules/extras/internet/internet.sh`): removed broken `_enable_protonvpn_repo()` that failed due to missing suite; created new `install_protonvpn()` using `stable` suite + `proton-vpn-gtk-app` package with proper validation.
- Java/Minecraft rename across `modules/gaming.sh` and `modules/extras/java.sh`: renamed `_install_gaming_java()` → `install_minecraft_java()`, updated menu title from "Java Runtimes for Gaming" to "Java Runtimes for Minecraft", changed whiptail tag from `"java-jre"` to `"java"`.
- RetroArch + 4 classic cores (`modules/gaming/tools.sh` and `.sh`): added RetroArch entry to gaming menu, new case handler in `gaming.sh`, updated installation command to include `libretro-mgba libretro-snes9x libretro-nestopia libretro-gambatte`, enhanced notice with emojis, core enumeration, DFSG warning, and wiki link.
- OnlyOffice server status (`modules/extras/office/office.sh`): added fallback message for slow or down OnlyOffice servers to improve user experience during installation.
- Full syntax validation: all modified files pass `bash -n` without errors; no residual references to old variables (`i386_active`, `590.48.01`) or functions remain.
- Documentation about Debian and the script is added to supplement important information.
- update README.md
- Created standalone modules/bluetooth.sh for `_install_bluetooth_stack()` with desktop-aware frontend selection (bluedevil/KDE, blueman/XFCE/other). Extracted from `firmware.sh`, reducing it from 438 to 369 lines.
- Added `detect_desktop_environment()` and `detect_audio_server()` functions in `utils.sh` with new globals `DESKTOP_ENV=""` and `AUDIO_SERVER=""`.
- New `found_active_wifi` flag detects Qualcomm Atheros AR9485 PCI chips without loaded firmware, displaying `(no driver — install firmware)` instead of silently disappearing. Auto-installs `firmware-atheros + firmware-linux-nonfree` after Firmware & Wireless Setup.
- New `is_nvidia_blackwell()` detects GPUs in ranges `0x2900–0x29BF` and `0x2B80–0x31FF`. Added `_enable_cuda_repo()` helper for extrepo-based CUDA installation with APT pinning. DKMS verification blocks added to all `_install_nvidia_*` functions.
- Standardized repository enablement across 7 modules using `_enable_*_repo()` helpers:
- `internet.sh`: Firefox/Floorp/LibreWolf, Pale Moon, Tailscale, Mullvad VPN/Browser, ProtonVPN
- `jellyfin.sh`, `programming.sh` (VSCodium), `java.sh` (Temurin)
- New `extras/office/office.sh`: OnlyOffice + LibreOffice with language detection
- The main script was reduced from 233 to 137 lines. Created new `modules/sysinfo.sh` (97 lines) for `_show_sysinfo()`. Source chain: `utils.sh → sysinfo.sh → sudo_config.sh → repos → firmware.sh → bluetooth.sh → gpu.sh → kernel.sh → gaming.sh → extras.sh → zram.sh → java.sh`.
- Renamed menu to `"Firmware, Wireless & Bluetooth"`. Translated NTP dialog (English), basic programs install message, and NVIDIA 32-bit legacy messages.
- Replaced the restrictive head -n1 hardware parsing with a dynamic while read loop. The script now fully detects and registers multiple coexisting GPUs (Intel+Nvidia / AMD+Nvidia).
- Rewrote install_gpu_drivers() in modules/gpu.sh from a mutually exclusive case block to independent, sequential if conditions. Laptops now install both integrated firmware (Intel/AMD with non-free VA-API acceleration) and dedicated graphics stacks (Nvidia driver + 32-bit libs for Steam) seamlessly in a single pass.
- Improved Nvidia Kepler architecture guards under Debian 13 (Trixie). The script now safely skips missing legacy Nvidia packages without aborting or crashing the remaining Intel/AMD configurations.
- Added nvme-cli utility installation across all Debian versions. For Bookworm and Trixie, it features dynamic hardware validation via lsblk transport filtering and interactive, real-time SMART log viewing with an execution screen-pause.
- Created a brand new standalone module (modules/extras/dev/jellyfin.sh) to cleanly inject Jellyfin Media Server across Debian 11, 12, and 13 using its official setup script, protected by strict SHA256 checksum validations and guaranteed error-cleanup.
- Added OpenRGB to the Gaming menu for Debian 12 and 13. Implemented secure curl downloads with an emulated Chrome User-Agent to bypass Codeberg bot blocks, complete with automatic i2c-dev module configuration, user groups provisioning, and udev permission rules execution.
- Standardized menu headers across 15 separate files using a centralized readonly SCROLL_HINT=" [↑↓]" variable, replacing messy hardcoded strings with clean, uniform Whiptail instructions.
- update README.md
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