BlockBlaster

GullCode

Here we go. I made a remake of commercial Android BlockBlast game.

Why ? Because I was tired of the incessant ads popping up here and there, and leading my children to things they should not see at their age.

You can play it online here: https://www.nilorea.net/Games/BlockBlaster/

Play store link:

https://play.google.com/store/apps/details?id=org.niloreastudio.blockblaster

Screenshots:

#game #blockblaster #linux #android #wasm #android

Complete Guide: Wake-on-LAN, Jellyfin & WireGuard on Debian

GullCode

Secure Remote Media Server Setup

Table of Contents

Introduction

In this guide, I will walk you through setting up a secure remote media server using:

  • Wake-on-LAN (WOL) – remotely power on your Debian machine
  • Jellyfin – free, open-source media streaming
  • WireGuard VPN – secure encrypted access to your server

This setup allows you to:

  • Wake up your server from anywhere
  • Access Jellyfin securely from your phone
  • Stream content exactly as if you were on your home network
  • Avoid exposing sensitive services directly to the internet

Requirements

Before you begin, make sure you have:

  • A Debian-based server
  • A home router with NAT/PAT support
  • An Android smartphone
  • Basic terminal knowledge

Wake-on-LAN (WOL)

Step 1 — Enable WOL in the BIOS

Look for options such as:

  • Wake on LAN
  • Power on by PCI-E
  • Resume by LAN

Enable the appropriate setting.

Step 2 — Enable WOL on Debian

Install ethtool:

sudo apt install ethtool

Enable WOL on your network interface:

sudo ethtool -s eth0 wol g

(Replace eth0 with your actual interface using ip link.)

Step 3 — Make WOL Persistent

Create /etc/systemd/system/wol.service:

[Unit]
Description=Wake-on-LAN configuration
After=network.target

[Service]
Type=oneshot
ExecStart=/sbin/ethtool -s eth0 wol g

[Install]
WantedBy=multi-user.target

Enable the service:

sudo systemctl enable wol

Step 4 — Configure Router & Mobile App

On your router:

  • Assign a static DHCP lease
  • Forward UDP 9 → port 9 of the server

On Android (app: Wake On LAN – by MR-Webb):

  • Name: any label
  • Group: Bookmarked
  • MAC address: server NIC MAC
  • Broadcast/Host: server LAN IP
  • Public IP: router’s WAN IP
  • Port: 9

Installing and Configuring Jellyfin

Step 1 — Install Jellyfin

curl https://repo.jellyfin.org/install-debuntu.sh | sudo bash
sudo systemctl enable jellyfin
sudo systemctl start jellyfin

Step 2 — Access the Web Interface

Navigate to:

http://YOUR_SERVER_IP:8096

Follow the setup steps:

  • Create your account
  • Add media libraries (Movies, Series, Music, etc.)

!!! Warning: Do NOT expose Jellyfin directly to the internet !!!

Always place Jellyfin behind a VPN such as WireGuard.

WireGuard VPN Setup

Step 1 — Install WireGuard

sudo apt install wireguard

Install the official Android app:

WireGuard – WireGuard Development Team

Step 2 — Generate Keys

Server keys:

wg genkey | tee server_private.key | wg pubkey > server_public.key

Phone keys:

wg genkey | tee phone_private.key | wg pubkey > phone_public.key

Display keys:

cat server_private.key
cat server_public.key
cat phone_private.key
cat phone_public.key

Never share private keys.

Step 3 — Configure /etc/wireguard/wg0.conf

Example VPN subnet:

  • VPN network: 10.10.0.0/24
  • Server: 10.10.0.1
  • Phone: 10.10.0.2
[Interface]
Address = 10.10.0.1/24
ListenPort = 51820
PrivateKey = <SERVER_PRIVATE_KEY>

PostUp   = iptables -A FORWARD -i wg0 -j ACCEPT; iptables -A FORWARD -o wg0 -j ACCEPT; iptables -t nat -A POSTROUTING -o enp0s31f6 -j MASQUERADE; ip6tables -A INPUT -p udp --dport 51820 -j ACCEPT
PostDown = iptables -D FORWARD -i wg0 -j ACCEPT; iptables -D FORWARD -o wg0 -j ACCEPT; iptables -t nat -D POSTROUTING -o enp0s31f6 -j MASQUERADE; ip6tables -D INPUT -p udp --dport 51820 -j ACCEPT

SaveConfig = true

[Peer]
PublicKey = <PHONE_PUBLIC_KEY>
AllowedIPs = 10.10.0.2/32

Replace enp0s31f6 with your interface name.

Step 4 — Enable IP Forwarding

echo "net.ipv4.ip_forward=1" | sudo tee /etc/sysctl.d/99-wireguard.conf
sudo sysctl --system

Step 5 — Configure Router Port Forwarding

Forward:

  • UDP 51820 → server LAN IP

Step 6 — Start WireGuard

sudo systemctl enable wg-quick@wg0
sudo systemctl start wg-quick@wg0
sudo wg

Step 7 — Configure WireGuard on Android

[Interface]
PrivateKey = <PHONE_PRIVATE_KEY>
Address = 10.10.0.2/32
DNS = 1.1.1.1

[Peer]
PublicKey = <SERVER_PUBLIC_KEY>
Endpoint = YOUR_PUBLIC_IP:51820
AllowedIPs = 192.168.1.0/24, 10.10.0.0/24
PersistentKeepalive = 25

Step 8 — Generate QR Code (Optional)

sudo apt install qrencode
qrencode -t ansiutf8 < phone.conf

Scan it directly in the WireGuard app.

Testing the Setup

  1. Send WOL packet from your phone
  2. Wait for the Debian server to boot
  3. Activate WireGuard tunnel on your phone
  4. Open Jellyfin via LAN IP:
http://192.168.1.50:8096

(Replace with your own server IP)

Troubleshooting

Common issues:

  • Incorrect router port forwarding
  • Wrong key pasted in configs
  • Firewall blocking VPN traffic

UFW Firewall Configuration (if applicable)

Allow WireGuard:

sudo ufw allow 51820/udp

Allow VPN subnet:

sudo ufw allow from 10.10.0.0/24

Add NAT rules in /etc/ufw/before.rules before *filter:

# WireGuard NAT masquerading
*nat
:POSTROUTING ACCEPT [0:0]
-A POSTROUTING -s 10.10.0.0/24 -o enp0s31f6 -j MASQUERADE
COMMIT

Ensure forwarding rules are present:

-A ufw-before-forward -i wg0 -j ACCEPT
-A ufw-before-forward -o wg0 -j ACCEPT

Restart UFW:

sudo ufw disable
sudo ufw enable

#jellyfin #wireguard #debian #wol #media #setup

Latest RMHacks with xovi for Remarkable 1 & 2 & Paper Pro

GullCode

That document is explaining how to install latest RMHacks port (on xovi framework) to your Remarkable 1, 2 or Paper Pro tablet.

It’s a copy paste from the guide here, by user GreySim.

rmHacks Manual Install Guide


This guide assumes a blank slate, and that you haven’t already tried installing xovi. If you have, and want to follow this guide, you should first clean up your first attempt by running (on your reMarkable over SSH): rm -rf ~/xovi.

Download Xovi:

Get the latest release available from: https://github.com/asivery/rm-xovi-extensions/releases

If you’re on a reMarkable Paper Pro, get extensions-aarch64.zip.

If you’re on a reMarkable 1 or 2, get extensions-arm32-testing.zip.

Unzip the files on your computer.

Using SCP (either the scp command, WinSCP, Cyberduck, or whatever SCP app works for you) transfer install-xovi-for-rm and qt-resource-rebuilder.so to /home/root on your reMarkable.

For example (from the directory you unzipped the files to):

scp install-xovi-for-rm qt-resource-rebuilder.so root@10.11.99.1:/home/root

Install Xovi:

SSH into your reMarkable. Run:

chmod +x install-xovi-for-rm

./install-xovi-for-rm

mv qt-resource-rebuilder.so xovi/extensions.d

mkdir xovi/exthome/qt-resource-rebuilder

xovi/rebuild_hashtable

The last command in particular could take a minute or two, and it’s not ready until you see the command prompt again.

NOTE: the tablet have to be connected to internet for ./install-xovi-for-rm to work, it’s downloading xovi from github

Optional Validation:

If you run find xovi, the output should look like this (the lines may not be in the same order but the same line should exist in both lists; if you have 12 lines you should be good):

root@reMarkable:~# find xovi
xovi
xovi/rebuild_hashtable
xovi/extensions.d
xovi/extensions.d/qt-resource-rebuilder.so
xovi/exthome
xovi/exthome/qt-resource-rebuilder
xovi/exthome/qt-resource-rebuilder/hashtab
xovi/stock
xovi/debug
xovi/dlfile
xovi/start
xovi/xovi.so

Install rmHacks:

Download rmHacks from https://github.com/asivery/rm-hacks-qmd (use the Code dropdown to Download ZIP). Unzip the file.

If you’re running 3.20, you’re going to want to use the contents of the 0.0.11-pre2 folder.

Using your SCP app of choice, move zz_rmhacks.qmd and the rmHacks folder to /home/root/xovi/exthome/qt-resource-rebuilder.

For example (from the 0.0.11-pre2 directory):

scp zz_rmhacks.qmd root@10.11.99.1:/home/root/xovi/exthome/qt-resource-rebuilder

scp -r rmHacks/ root@10.11.99.1:/home/root/xovi/exthome/qt-resource-rebuilder


Optional Validation:

Run find xovi again, just like before:


root@reMarkable:~# find xovi xovi xovi/rebuild_hashtable xovi/extensions.d xovi/extensions.d/qt-resource-rebuilder.so xovi/exthome xovi/exthome/qt-resource-rebuilder xovi/exthome/qt-resource-rebuilder/rmHacks xovi/exthome/qt-resource-rebuilder/rmHacks/document_pages_hide_hack.qmd xovi/exthome/qt-resource-rebuilder/rmHacks/auto_new_page_hack.qmd xovi/exthome/qt-resource-rebuilder/rmHacks/base xovi/exthome/qt-resource-rebuilder/rmHacks/base/toolbar_compat.qmd xovi/exthome/qt-resource-rebuilder/rmHacks/base/document_toggles_hack.qmd xovi/exthome/qt-resource-rebuilder/rmHacks/base/global.qmd xovi/exthome/qt-resource-rebuilder/rmHacks/base/settings.qmd xovi/exthome/qt-resource-rebuilder/rmHacks/split_doc xovi/exthome/qt-resource-rebuilder/rmHacks/split_doc/toolbar.qmd xovi/exthome/qt-resource-rebuilder/rmHacks/split_doc/no_orientation_switch.qmd xovi/exthome/qt-resource-rebuilder/rmHacks/split_doc/layers_menu.qmd xovi/exthome/qt-resource-rebuilder/rmHacks/split_doc/last_document_storage.qmd xovi/exthome/qt-resource-rebuilder/rmHacks/split_doc/focus_switching.qmd xovi/exthome/qt-resource-rebuilder/rmHacks/split_doc/size_recalculation.qmd xovi/exthome/qt-resource-rebuilder/rmHacks/split_doc/document_opening.qmd xovi/exthome/qt-resource-rebuilder/rmHacks/split_doc/split_doc_main.qmd xovi/exthome/qt-resource-rebuilder/rmHacks/document_battery_wifi_hack.qmd xovi/exthome/qt-resource-rebuilder/rmHacks/share_tool_settings_hack.qmd xovi/exthome/qt-resource-rebuilder/rmHacks/bookmarks.qmd xovi/exthome/qt-resource-rebuilder/rmHacks/table_of_contents_button_hack.qmd xovi/exthome/qt-resource-rebuilder/rmHacks/alphabetize_tags_list_hack.qmd xovi/exthome/qt-resource-rebuilder/rmHacks/force_refresh_gesture_hack.qmd xovi/exthome/qt-resource-rebuilder/rmHacks/toggle_toolbar_gesture_hack.qmd xovi/exthome/qt-resource-rebuilder/rmHacks/toolbar_width_hack.qmd xovi/exthome/qt-resource-rebuilder/rmHacks/all_mono_hack.qmd xovi/exthome/qt-resource-rebuilder/rmHacks/more_stroke_sizes_hack.qmd xovi/exthome/qt-resource-rebuilder/rmHacks/hide_close_button_hack.qmd xovi/exthome/qt-resource-rebuilder/rmHacks/screenshare_everywhere_hack.qmd xovi/exthome/qt-resource-rebuilder/rmHacks/share_tool_toggle_wifi_hack.qmd xovi/exthome/qt-resource-rebuilder/rmHacks/more_colors_hack.qmd xovi/exthome/qt-resource-rebuilder/rmHacks/last_document_gesture_hack.qmd xovi/exthome/qt-resource-rebuilder/rmHacks/document_clock_hack.qmd xovi/exthome/qt-resource-rebuilder/rmHacks/new_notebook_date_name_hack.qmd xovi/exthome/qt-resource-rebuilder/rmHacks/share_tool_toggle_all_gestures_hack.qmd xovi/exthome/qt-resource-rebuilder/rmHacks/switch_pens_gesture_hack.qmd xovi/exthome/qt-resource-rebuilder/rmHacks/toggle_eraser_gesture_hack.qmd xovi/exthome/qt-resource-rebuilder/rmHacks/light_sleep_icon_hack.qmd xovi/exthome/qt-resource-rebuilder/rmHacks/hide_text_tool_hack.qmd xovi/exthome/qt-resource-rebuilder/rmHacks/navigator_compressed_list_hack.qmd xovi/exthome/qt-resource-rebuilder/rmHacks/toolbar_pages_button_hack.qmd xovi/exthome/qt-resource-rebuilder/zz_rmhacks.qmd xovi/exthome/qt-resource-rebuilder/hashtab xovi/exthome/qt-resource-rebuilder/README.MD xovi/stock xovi/debug xovi/dlfile xovi/start xovi/xovi.so


Run for the First Time:

SSH in to your reMarkable. Run: xovi/debug

This will not “complete”, but it should cause your reMarkable to restart the GUI. Once that happens, open Settings on your device and there should be a new rmHacks section.

(As of the time of this writing, at least one section is intentionally left blank and is normal. It does not mean something failed to install.)

If you have the rmHacks menu, the install was successful. If something was not successful, the output in your SSH session probably references an error that will be useful in determining what went wrong.

If successful, you can press Ctrl + C in the SSH session where xovi/debug was started to end the debug session.

Run rm install-xovi-for-rm to remove the installation script.

You probably don’t strictly need to reboot, but I like to at this point.

Going forward you can now start rmHacks and Xovi by running xovi/start over SSH.

–GreySim

Optional: Install Triple Tap:

Every time you reboot the reMarkable, you’ll need to SSH in to run xovi/start. This could be a problem if you’re not at your computer. One solution is to install this extra script/service created by a different developer: https://github.com/rmitchellscott/xovi-tripletap

If you install this, you can start Xovi by pressing the power button three times in 2 seconds or less.

The author of this guide used the automated installer for this service on their own device, but as the instructions very correctly state:

Piping code from the internet directly into bash can be dangerous. Make sure you trust the source and know what it will do to your system.

Manual install instructions are available on the page as well.

Portapack Mayhem V2.2.0

GullCode

A new release of the famous Mayhem firmware for the HackRF + Portapack is out !

https://github.com/portapack-mayhem/mayhem-firmware/releases/tag/v2.2.0

We’re excited to share the latest updates in v2.2.0:

New Applications & Utilities:
– App Manager: A new settings app to manage which applications are visible in the menu.
– Detector: A new wide-band signal detector with a graphical RSSI history to help you find nearby transmitters.
– GFX EQ: A beautiful graphical audio equalizer for the WFM radio.
– Hopper: A powerful frequency hopping utility. Load a list of frequencies and transmit across them in various patterns.
– Level: The popular Level meter is back as an external app.
– Scanner: The frequency scanner is now an external app with improved performance.
– SD Card Wipe: The utility to securely wipe your SD card is now an external app.
– Stopwatch: A handy stopwatch and timer utility.
– WAV Viewer: The WAV file viewer and analyzer is now an external app.
– Antenna Length: The whip antenna calculator is now an external app.
– Playlist Editor: A new utility to create and edit .PPL replay playlists directly on the PortaPack.
– Debug PMem: A new debug utility to dump the contents of the persistent memory to the SD card.

New Games:
– Snake
– Tetris
– Breakout
– Doom
– Blackjack
– Battleship (POCSAG-based multiplayer)
– Space Invaders
– Dino Game (Chrome’s classic, now on your PortaPack!)

New Weather Satellite Decoders:
– WeFax Receiver: A dedicated app for receiving and decoding HF Weather Fax transmissions.
– NOAA APT Receiver: A dedicated app for receiving and decoding NOAA APT weather satellite images.

Enhancements & Improvements
– Analog Audio App:
New Demodulation Modes: Added AM-FM and WFM-AM modes specifically for decoding weather satellite transmissions (WeFax and NOAA APT).
Waterfall Zoom: Added a “ZOOM x2” feature in AM and AM-FM modes for a closer look at the spectrum.
Settings Saved: Your preferred AM mode and zoom factor are now saved and restored on startup.

– BLE RX App:
MAC Vendor Lookup: The app can now use the new MACADDRESS/macaddress.db file on your SD card to identify the manufacturer of BLE devices.
Improved Stability: Refactored to use the new asynchronous USB messaging system, improving stability and performance.
Better Channel Hopping: Channel hopping is now sequential (37-38-39) instead of random, ensuring more consistent discovery.
Accurate Power Reading: The reported dBm value now correctly accounts for LNA and VGA gain settings.
UI/UX: Improved error handling, keyboard entry modes, and list clearing.

– ADSB Receiver:
Enhanced Decoding: Now decodes more frame types (DF4, DF5, DF20, DF21) to extract Squawk codes, more accurate altitude, and callsigns.
True Airspeed (TAS): The app can now calculate and display True Airspeed (TAS) from Indicated Airspeed (IAS) and altitude data.
Improved Logging: Logs now include more detailed information like Squawk, SIL, and vertical rate.
Beep on Packet: Added an option to beep whenever a valid ADSB packet is received.

– Signal Generator (SigGen):
Major Overhaul: The SigGen app has been completely revamped with new modulation types, including BPSK, QPSK, DSB, AM (50% & 100% depth), and Pulsed CW. This makes it a much more versatile testing tool.
Improved UI: The user interface has been updated to logically group modulation and shape options.
File Manager:
Improved Navigation: The directory listing and pagination logic has been completely rewritten for a smoother and more intuitive experience.
Waterfall Gradient Installer: When you open a .txt file from the new WATERFALLS directory, you’ll be prompted to install it as the new default waterfall color scheme.

– Capture App:
Your settings for capture rate, file format, and auto-trim are now saved and restored automatically.
UI & UX Improvements
Customizable Waterfall Colors: The Looking Glass and Search apps now use a customizable color gradient. Create your own waterfall.txt file in the WATERFALLS directory on your SD card to change the look!
New “Dark” Theme: A new theme has been added for those who prefer a darker interface.

– New Settings Menus:
Display: Control the new “Fake Brightness” feature and set your screen type (TFT vs. IPS).
Button Speed: Adjust the repeat delay, repeat speed, and long-press delay for the physical buttons.
Responsive UI: Many applications and widgets now dynamically adjust their layout to better fit different screen resolutions.
Improved Keyboard: The on-screen keyboard now defaults to the most logical mode (Alpha, Numeric) depending on the context.
New Icons: Added a huge number of new icons for all the new apps and features.

Under the Hood & For Developers
– External App Architecture: The firmware now supports loading and running applications from the SD card. This is a fundamental architectural shift that allows for greater flexibility and expansion.
– Build System: The minimum required CMake version has been updated to 3.16.
– Code Refactoring: Many internal apps have been moved to the new external app system, cleaning up the main firmware codebase. The de_bruijn.cpp generator has been removed in favor of more modern methods.

SD Card Content

New Directories:
– WATERFALLS/: Place your custom waterfall color gradient files here (e.g., aurora.txt, flame.txt).
– HOPPER/: Store your frequency lists for the new Hopper app here.
– MACADDRESS/: Place the macaddress.db file here for the BLE RX vendor lookup feature.
– SUBGHZ/: For Flipper-compatible .sub files.

New Files:
– Added example files for the new WATERFALLS and HOPPER directories.
– Added macaddress.db for BLE vendor lookup.
– Cleaned Up: Removed old and unused FREQMAN files.

Don’t forget our various and usefull websites:

Mayhem HUB: https://hackrf.app/

Mayhem Main Repository: https://github.com/portapack-mayhem/mayhem-firmware

Mayhem Wiki: https://github.com/portapack-mayhem/mayhem-firmware/wiki

Mayhem User Provided Freqman Files: https://github.com/portapack-mayhem/mayhem-freqman-files

Mayhem MDK: https://github.com/portapack-mayhem/mayhem-mdk

Mayhem ESP32 Module: https://github.com/htotoo/ESP32-Portapack

Thanks to all the contributors on that release !!

#hackrf #portapack #mayhem

MinGW / MSYS tip of the day

GullCode

If ever you encounter error like this:

(159/159) checking for file conflicts                                                                                          [###################################################################] 100%
error: failed to commit transaction (conflicting files)
mingw-w64-i686-glib2: /mingw32/bin/gi-compile-repository.exe exists in filesystem
mingw-w64-i686-glib2: /mingw32/bin/gi-decompile-typelib.exe exists in filesystem
mingw-w64-i686-glib2: /mingw32/bin/gi-inspect-typelib.exe exists in filesystem
mingw-w64-i686-glib2: /mingw32/bin/libgirepository-2.0-0.dll exists in filesystem
...and so on...

The use the following command to update your system:

pacman -Suuy --overwrite "*"

HackRF Portapack Mayhem 2.0.1

GullCode


The new stable firmware is out, with a bunch of bugfixes, new features, and new apps !!
Here you go for a detailed changelog since 2.0.0 !
First apps changes are listed, and then the UI / Radio / Baseband / Website / GIT ones.

TLDR, main features for that update:

  • Freqman is supporting a lot more files than before
  • Tone beep has been added to a ton of apps and as a global setting too
  • 2 new apps which will make use of the incoming ESP32 USB tooling
  • Auto record and repeat in Recon
  • Autostart app on power on option
  • RX IQ CALibration
  • lots of fixes and cleanings
  • some new preset/freqman files
  • some new BLE options

List of updated apps:

ADSB:

  • Beep-on-packet support in ADSB RX app
  • Added sil value ASDB

AIS:

  • Beep-on-packet support in AIS app

Audio:

  • Adding Rx IQ error phase CAL to SPEC Audio_App
  • Added a beep duration parameter
  • Improved audio beep tone

BLE:

  • Added all and all-safe attack types to blespam
  • Bt namespam

Capture/Recording apps:

  • Record gps lat, lon, satinuse from recorder app if there was gps signal

Recon:

  • Fix Recon Modulation/Bandwidth presets
  • Recon repeat auto recorded file mode
  • Added enums for recon_config bits

ERT:

  • beep on packet

Freqman:

  • Add FPV analog frequenqies to FREQMAN
  • Update FPV_ANALOG.TXT
  • Limiting description size to 30, and minor fix
  • SSTV Freqs
  • Added and fixed freqs
  • Create RADIOS_FM_FR_PARIS.TXT with FM Radios in Paris
  • Adding Australian UHF channels and Brisbane Airband to FREQMAN

Fileman:

  • Support “clean” files
  • File manager “Clean” button tweaks
  • Darken FileMan button colors for visibility
  • Fileman memory opt
  • Allow to load more files but unordered
  • Continued folder names consolidation & GPS default folder
  • FileMan support for folder Cut & Paste and Timestamp Rename

Games:

  • Cheat code protect in pacman app

Fox hunt:

Level:

  • Added Rxsat in Level app
  • Level app: coloration of RxSat value
  • Level fix and beep, RSSI avg fix
  • Fixing level beep, bad copy paste on special SPEC mode
  • Fix gui glitch on beep squelch

Looking glass:

  • Looking glass beep
  • Added CubeSats to Presets
  • Adding Australian UHF to Looking Glass
  • Adjust GUI for more preset name room

Mic:

  • Mic audio ak4951 fix

POCSAG:

  • Beep-on-packet support in POCSAG app

RadioSonde:

  • Fixed Sonde RSSI “Beep”
  • Radiosonde beep tone tweaks
  • Radiosonde QR code fixes

Settings:

  • Autostart option
  • Fix Cancel button in Settings->Autostart
  • Beep-on-packets option in Settings

TPMS:

  • Beep-on-packet support in TPMS app

Wardrive Map:

Weather:

  • Beep-on-packet support in Weather app

Other updates:

Radio:

  • Set iq_phase_cal in radio when starting SPEC mode
  • Added RXIQCALC
  • Preserve radio mode when updating iq_tx_phase_cal

Tools/Debug:

  • Improved flash image validation
  • External sensor tester app
  • Lambda the flash util menu add item code
  • Audio Beep Test (Debug) external app
  • Improved Audio Beep Test
  • More debug Audio Beep Test tweaks
  • Show true M0 free heap space in DFU overlay
  • Commented out Debug -> Memory Usage app

Baseband:

  • Start audio DMA only in apps that use audio
  • Disabled unused baseband “no-op” process
  • Stop audio DMA in baseband::shutdown
  • Use freq from AppSettings unless passed from another app

USB/Serial:

  • Added crc32 command to usb shell
  • Dynamic usb buffer fill for screenframeshort

UI:

  • Optimized fake brightness code
  • Change sun bitmap to make it more like a sun
  • Remove unused text_info widget
  • Eliminate unnecessary NumberField to save code space
  • Deallocate menu buttons to save memory
  • Fix butngrid/capture and fix contributor name
  • Removed special font characters
  • Move the no ext app tile to forward
  • Modify warning text
  • Add GPS icon, fix overwrite bug

Code/Build:

  • Fix compiler warnings
  • Fix unused warnings
  • Fix build warning in settings
  • Declare all folder names in a single source file

Git depot:

  • Update bug_report.md
  • Create config.yml
  • Rename bug_report.md to 01_bug_report.yml
  • Update and rename feature_request.md to feature_request.yml
  • Rename feature_request.yml to 02_feature_request.yml
  • Update config.yml
  • Rename problem-upgrading-the-firmware.md to 03_problem-upgrading-the-firmware.md

Website (https://hackrf.app):

  • Fix shift back in screenshot and mayhem hub

Last notes:

If you are coming from a version <2.0.0, you have to first update using the classic hackrf_spiflash method to bring your firmware to a version >=2.0.0. It will only update the parts of the firmware on the flash, all external apps will NOT be updated using only hackrf_spiflash.

In a second time use the web interface at https://hackrf.app to update to lastest stable/nightly. It will ALSO update external apps that are stored on the sdcard.

If your firmware is already >= 2.0.0, just directly go to https://hackrf.app and update all in one go from there.

!! all sdcard content is NOT updated through website, only the external apps !!

Links:
https://github.com/portapack-mayhem/mayhem-firmware/releases
https://github.com/portapack-mayhem/mayhem-firmware/wiki/Update-firmware

#hackrf #portapack #mayhem #firmware #update

scp error: path canonicalization failed

GullCode

If you’re doing scp command, with ‘-r’ recursive option, and stumble upon a strange “path canonicalization failed” out of nowhere:

Starting from SSH 9.0.0 scp is using sFTP to copy files. And in sFTP, target directories must exist.

Simple fix: use -O, legacy mode:

“Use the legacy SCP protocol for file transfers instead of the SFTP protocol. Forcing the use of the SCP protocol may be necessary for servers that do not implement SFTP, for backwards-compatibility for particular filename wildcard patterns and for expanding paths with a `~’ prefix for older SFTP servers”

#SSH #SCP #ERROR

reMarkable 2, quick review and advanced configuration

GullCode

Overview

The reMarkable 2 tablet is an e-ink paper feel like tablet, aimed at note taking, quick drawing, and PDF/EPub reading.

You can read the product informations/hardware directly on the reMarkable website.

It’s voluntarily simple and with no extra apps/functions so you stays focused on what you’re doing. Some says it’s a default, some says it’s a perk. I think it’s a perk 😉

The environnement of the reMarkables (1 & 2) is an open source based linux. By default you can have an ssh access to your tablet, and you have the root access.

reMarkable Guide

Nearly every information on that article can be found in great details here: https://remarkable.guide/

That guide is like the “hitchhiker’s guide to the remarkable world”.

They’re also the ones behind the excellent ‘reMarkable’ discord server

!! Warning for what’s following !!

We are not responsible if you break your device.

Read all the documentation BEFORE acting so you know what you do.


If you want to try something undocumented / unsupported, you better ask the question on remarkable discord first.

Extra warning on reMarkable 2: you’ll need a special pogo connector to do a real factory reset !! (see https://remarkable.guide/tech/recovery.html for more informations)

List of the hacks I use / links to project pages

Let’s start by stating that I’m not willing to use any cloud related functions on that tablet.

I used first codexctl to downgrade the tablet to the last toltec supported version, that is 2.15.1.1189 at the time of the article. Support for 3.X is in the tube, but not yet ready for users.

Then I used toltec to install / manage the linux packets on the reMarkable system.

Once toltec installed, I used the provided opkg commands to install Oxide

Oxide is a desktop environment for the reMarkable tablet.

Features:

  • Multitasking / application switching
  • Notifications
  • Wifi managment
  • Chroot for applications that you don’t fully trust
  • Optional lockscreen
  • Homescreen for launching applications
  • Process manager
  • Take, view, and manage screenshots

See https://oxide.eeems.codes/

Then I installed the following via opkg install (I linked the project pages so you can go to see by yourself):

KOReader : An ebook reader application supporting PDF, DjVu, EPUB, FB2

Plato: An ebook reader application supporting PDF/CBZ/FB2/XPS/ePUB/DJVU reader

Sill: Gesture-based text editor (and shell) for the reMarkable tablet

VNSee: VNC client for the reMarkable tablet allowing you to use the device as a second screen
calculator

rmFM: Bare-bones file manager for the reMarkable paper tablet, built using Node.js and sas

restream: Stream your reMarkable screen over SSH

webinterface-wifi: View the web interface over wifi. For the ReMarkable Tablet

webinterface-upload: Upload button for the web interface, alternative to drag and drop. For the ReMarkable Tablet

webinterface-onboot: Enable the web interface on boot. For the ReMarkable Tablet

I also installed genie and iago (UI for drawing shapes with the pen) and genie (config based gesture launcher) following that reddit comment.

I may have installed a few others, but I’m not using them daily.

For some more, you should explore the Awesome reMarkable page (A curated list of projects related to the reMarkable tablet) as well as toltec package list / toltec entware package list

Quick gestures/shortcut reminders:


Templates:

I tried reCalendar, a free online calendar generator that is also making links on dates

Ultimate HackRF Portapack Mayhem Upgrade Guide

GullCode

2023-2024 Edition

Introduction

When updating your devices, you may sometimes encounter problems that are directly related to the way you updated and to the changes that have occurred between your version jump.

That guide does not pretend to solve all the problems, some are real issues that have to be opened on the Mayhem GITHUB issues tracker.

On the other hand, if you have followed that guide and still have a problem, your issue have better chances to be solved as it will be possible to set aside common updates related problems.

List of important steps:

  • download all necessary files (it means at least SDCARD apps and firmware bin file !!)
  • have a reliable USB cable
  • ensure that your button battery is not dead, else use ‘PMem to Sdcard’ options in ‘Settings’
  • ensure that your CPLD is up to date (no need to update each time, but be sure at least once)
  • flash the firmware
  • update sdcard content (do not forget to update APPS if you’re manually refreshing !)
  • if you are having strange apps problems, try a factory default reset. It’s important to note that you will loose your settings and will have to set them back if you’re doing that step
  • always go and check the settings after the updates, we may have added things that changed the memory layout of settings thus messing them.

You may search each each steps details in the Mayhem GITHUB Wiki, particularly in the following sections:

#hackrf #portapack #mayhem #update #upgrade #guide