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@ibam
ibam / p2p-gojek.md
Last active March 18, 2026 16:00

P2P Ridehailing App — Claude Code Instructions

You are building a fully decentralized peer-to-peer ridehailing mobile app. Zero centralized servers. The entire system runs on user devices and the Solana blockchain.

Core Flow

  1. A rider opens the app, sets a destination, and the app calculates a fare client-side using Haversine distance.
  2. The rider posts a ride request on-chain containing a blinded zone ID (ZK proof of zone membership), the offered fare, and escrowed SOL.
  3. Nearby drivers discover the request via libp2p GossipSub and on-chain queries.
  4. Drivers submit offers on-chain — they can accept the rider's fare or counter-offer (capped at 2x the rider's price).
@bizz84
bizz84 / update-android-project.sh
Last active January 30, 2026 02:25
Script to update Gradle, Java and other Android project settings in a Flutter project
#!/bin/bash
# Update Gradle, Java and other Android project settings in a Flutter project
# Works with both .gradle and .gradle.kts build files
# See: https://gradle.org/releases/
# See: https://developer.android.com/build/releases/gradle-plugin#compatibility
DESIRED_GRADLE_VERSION="8.11.1"
# Build errors often show the required Java version
DESIRED_JAVA_VERSION="17"
# See: https://developer.android.com/ndk/downloads
@Grunerd
Grunerd / LabelFontScaler.gd
Last active October 11, 2023 17:44
LabelFontScaler for Control Node in Godot 4
extends Control
# ensure that you attach this script to the parent node of your ui elements
# ensure that you link the signal "resize" of this control node to this script
#
@export_enum("Horizontal","Vertical") var scaleMode = "Vertical"
# cache for all labels and ther initial font size
@oofnikj
oofnikj / answerfile
Last active March 23, 2026 09:29
Install Docker on Termux
KEYMAPOPTS="us us"
HOSTNAMEOPTS="-n alpine"
INTERFACESOPTS="auto lo
iface lo inet loopback
auto eth0
iface eth0 inet dhcp
hostname alpine
"
TIMEZONEOPTS="-z UTC"
@rounakdatta
rounakdatta / esp32_ota_stm32.ino
Created September 6, 2019 19:43
Flash STM32 firmware from ESP32
#include <SPIFFS.h>
/*
*
* Copyright (C) 2017 CS.NOL https://github.com/csnol/1CHIP-Programmers
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License,
* and You have to keep below webserver code
@csukuangfj
csukuangfj / stm32-macos.md
Last active June 28, 2025 20:38
stm32-macos
@artemisia-absynthium
artemisia-absynthium / AndroidManifest.xml
Last active November 19, 2022 10:34
Android Exoplayer fullscreen feature
...
<activity
android:name=".FullscreenVideoActivity"
android:configChanges="orientation|keyboardHidden|screenSize"
android:label="@string/app_name"
android:theme="@style/FullscreenTheme" />
...
@xandfury
xandfury / MobusRTUSlaveExample.ino
Last active August 26, 2021 02:06
A simple modbus rtu slave device that works with Arduino Uno. For testing purposes.
/*
Before you begin, make sure that you have the correct libraries installed.
You must install Modbus Library given here: https://code.google.com/archive/p/arduino-modbus-slave/downloads
This is just an example taken from that library. I have written no part of this code. All credit goes to the original authors.
- xandfury
*/
#include <modbus.h>
#include <modbusDevice.h>
#include <modbusRegBank.h>
@milon87
milon87 / login.js
Created August 24, 2017 09:27
x-www-form-urlencoded post in react native
getLoginAPI = () => {
let details = {
'username': 'username',
'password': 'demo'
};
let formBody = [];
for (let property in details) {
let encodedKey = encodeURIComponent(property);
@joielechong
joielechong / BadgeTabLayout.java
Created January 24, 2017 11:37 — forked from eneim/BadgeTabLayout.java
A custom TabLayout with badge support for Tabs
package im.ene.lab.android.widgets;
import android.content.Context;
import android.graphics.PorterDuff;
import android.graphics.drawable.Drawable;
import android.os.Build;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.design.widget.TabLayout;
import android.util.AttributeSet;