Author: pw

  • The Monolith Code Survival Guide: Clean Architecture for Big Apps

    Scaling Monolith Code: Best Practices for Growing Engineering Teams

    As engineering teams expand, the monolithic codebase that once enabled rapid product delivery often becomes a primary source of friction. Merge conflicts multiply, build times stretch, and deployments become high-risk events. However, moving to microservices is not the only path forward. Scaling a monolith successfully requires structural discipline, clear boundaries, and robust automation.

    Here are the essential strategies for keeping a monolithic architecture clean, fast, and maintainable as your engineering organization grows. 1. Enforce Modularity with “Modular Monoliths”

    The biggest risk to a growing monolith is tight coupling, where a change in one domain unexpectedly breaks another. A modular monolith enforces strict boundaries between different business domains within a single codebase.

    Domain-driven design (DDD): Organize your codebase by business capabilities (e.g., billing, identity, inventory) rather than technical layers (controllers, models, views).

    Strict internal APIs: Treat modules as isolated services. Communication between modules should happen through well-defined public interfaces or internal event buses, not direct database queries across domain boundaries.

    Architecture linters: Use tooling (such as ArchUnit for Java, Packwerk for Ruby, or dependency-cruiser for JavaScript) to automatically block illegal dependencies between modules during code analysis. 2. Implement Code Ownership

    When everyone owns the codebase, no one owns it. As team sizes increase, anonymous code leads to technical debt and architectural decay.

    Define clear boundaries: Map specific directories or modules directly to dedicated engineering teams.

    Automate review routing: Use configuration files like GitHub’s CODEOWNERS to automatically add the correct team as required reviewers whenever code in their domain is modified.

    Encourage autonomy: Teams should be empowered to refactor and optimize their own modules without needing consensus from the entire organization. 3. Streamline Git Workflows and CI/CD

    A growing team means an exponential increase in code commits. Without optimization, the continuous integration (CI) pipeline quickly becomes a bottleneck.

    Trunk-based development: Avoid long-lived feature branches that cause catastrophic merge conflicts. Keep branches short-lived and merge to the main branch frequently.

    Test filtering and parallelization: Do not run the entire test suite for every minor change. Use impact analysis tools to run only the tests related to the modified modules, and execute them in parallel.

    Feature flags: Decouple code deployment from feature activation. Merge incomplete features behind feature flags so code can safely reach production without exposing unfinished functionality to users. 4. Optimize Build and Deployment Pipelines

    When a monolith grows, build sizes and asset compilation times skyrocket. If deployments take hours, engineering velocity grinds to a halt.

    Incremental builds: Utilize modern build systems (like Bazel, Turbo, or Nx) that cache previous build steps and only recompile parts of the application that actually changed.

    Blue-green or canary deployments: Reduce the risk of monolithic deployments. Roll out changes to a small percentage of traffic first to monitor for spikes in errors before routing all users to the new build.

    Automated rollbacks: Ensure your deployment system can automatically revert to the previous stable build if core metrics drop post-deployment. 5. Prevent Database Bottlenecks

    In a monolith, the database is often the single point of failure and the hardest component to scale horizontally.

    Logical data separation: Ensure modules only read and write to their own dedicated tables. Avoid cross-domain database joins; instead, fetch required data via module APIs.

    Read replicas: Route heavy read traffic and reporting queries away from the primary transactional database to dedicated read-only replicas.

    Database migrations discipline: Enforce backward-compatible migrations. Every database schema change must be deployable independently of the application code, requiring a multi-phase approach (e.g., add column, write data, deprecate old column, delete old column). Conclusion

    Scaling a monolith is ultimately a human and organizational challenge translated into code. By enforcing strict modular boundaries, defining clear ownership, and investing heavily in CI/CD automation, growing teams can maintain the simplicity of a single deployment pipeline while enjoying the velocity of independent microservices.

    If you would like to customize this article further, let me know: Your preferred target word count

    The specific tech stack your team uses (e.g., Rails, Django, Node.js)

    If you want to include a section on when to finally migrate to microservices

    I can tailor the technical examples to perfectly fit your audience.

  • Is Your Data Safe? Testing Folder Locker Breaker Software

    How to Bypass a Folder Locker: Step-by-Step Recovery Guide Locking a folder is a great way to protect sensitive data from prying eyes. However, forgetting the password or experiencing a software glitch can lock you out of your own files. If you are stranded outside your secured directory, you can use these built-in system workarounds to safely recover your data. Method 1: Reveal Hidden Files (For Batch Script Lockers)

    Many basic “folder locker” programs are actually simple Windows batch (.bat) scripts. These scripts do not encrypt files; they merely hide them and apply a system attribute.

    Open File Explorer: Launch the native file manager on your PC.

    Access Folder Options: Click View in the top menu, then select Options.

    Change View Settings: Click the View tab in the popup window.

    Show Hidden Files: Select Show hidden files, folders, and drives.

    Unhide System Files: Uncheck Hide protected operating system files (Recommended). Apply Changes: Click Apply and then OK.

    Locate the Folder: Look for a faded or transparent folder in the directory. Method 2: Use Safe Mode to Access Restricted Directories

    Third-party locking software often relies on background drivers or startup services to enforce access restrictions. Booting Windows into Safe Mode prevents these non-essential drivers from loading. Open Settings: Press Windows Key + I. Navigate to Recovery: Go to System, then click Recovery.

    Advanced Startup: Click Restart Now next to Advanced Startup.

    Choose Troubleshooting: Select Troubleshoot, then Advanced Options, then Startup Settings. Restart the PC: Click the Restart button.

    Enable Safe Mode: Press 4 or F4 on your keyboard during boot.

    Retrieve Files: Open File Explorer normally and copy your files to a safe location. Method 3: Edit the Locking Batch Script

    If your locker is a local .bat executable file on your computer, you can view its source code directly to extract the forgotten password.

    Right-Click the File: Locate the locker application or script file. Open with Notepad: Choose Edit or Open with > Notepad.

    Search for the Password: Press Ctrl + F to open the search bar. Type the Keyword: Search for the text if NOT %pass%==.

    Identify the Code: The text immediately following the == sign is your original password.

    Unlock the Folder: Run the script normally and enter the recovered password. Method 4: Boot via a Linux Live USB

    If a program has tightly locked down Windows permissions, a secondary operating system will bypass those rules entirely. Linux filesystems ignore Windows security descriptors.

    Create a Live USB: Download a lightweight Linux distribution (like Ubuntu) onto a flash drive using Rufus.

    Boot to USB: Restart your computer and press your boot menu key (usually F12, F11, or Del).

    Select the Drive: Choose your USB drive to boot into the temporary Linux environment.

    Mount Windows Drive: Open the Linux file manager and click on your main Windows hard drive.

    Transfer Data: Navigate to the locked folder, copy the files, and paste them onto an external drive.

    Disclaimer: This guide is intended strictly for data recovery and educational purposes on devices you own or have explicit authorization to access. Unauthorised access to data is strictly illegal.

    If you are still unable to access your files, I can help you troubleshoot further. Please let me know: What specific locking software or script did you use?

    What operating system (Windows 10, Windows 11, macOS) are you running?

  • FindGraph vs. Excel: Which Tool Wins for Curve Fitting?

    FindGraph by UNIPHIZ Lab is a highly specialized engineering and scientific application designed to bridge the gap between raw visual data and precise mathematical models. If you are manually calculating datasets or struggling to match complex curves in standard spreadsheet software, you are missing out on its core strengths.

    The 5 most powerful features of FindGraph that you should be leveraging include: 1. The Wizard of Digitization

    If you only have a printed chart, a scanned PDF, or a screenshot of an old stock trend, you do not need to guess the coordinate values manually. FindGraph’s built-in Digitization Wizard extracts numbers directly from raw image files.

    How it works: You upload an image, calibrate the X and Y axes, and click along the curve.

    The payoff: It immediately converts the physical line or scatter layout into structured, formatted data points. 2. Neural Network Approximation

    Standard curve fitting typically relies on linear or polynomial regression, which frequently fails when encountering chaotic, real-world data. FindGraph bypasses these limits by incorporating GMDH Polynomial Neural Networks and Radial Basis Function Networks.

    How it works: The software builds multi-layered network structures to map nonlinear relationships.

    The payoff: You can model and forecast unpredictable datasets—like stock patterns or fluid dynamics—without needing a manual formula. 3. Smart “Best Fit” Selection Wizard

    When you need to fit a curve to a dataset but do not know which equation is mathematically correct, you can use FindGraph’s library of over 200–500 pre-programmed 2D formulas.

    How it works: The program applies multiple models simultaneously and automatically ranks equations by precision metrics.

    The payoff: It filters the best mathematical model based on the lowest standard error, minimum least squares value, or the Bayesian Information Criterion (BIC). 4. Advanced Signal Extraction & Filtering

    Raw scientific data often comes loaded with background noise that obscures the underlying trend. FindGraph includes built-in advanced calculus and signal processing tools.

    How it works: It features Fast Fourier Transform (FFT) filters, Wavelet filters, and Epanechnikov kernel smoothers.

    The payoff: You can completely isolate periodic or cyclic signals, remove erratic noise, and calculate derivatives or integrations directly on the filtered results. 5. COM Server Integration & OLE Automation

    You do not have to copy and paste your results or stay confined to the native interface. FindGraph can function directly as a background engine for your existing ecosystem.

    How it works: It acts as a Component Object Model (COM) server and supports OLE automation.

    The payoff: You can use external tools like Microsoft Excel or your own custom software scripts to call FindGraph’s advanced algorithms automatically, streamlining your entire reporting pipeline.

    To tailor this further, could you tell me a bit more about what kind of data you are analyzing (e.g., laboratory engineering specs, financial charts, or mathematical equations) so I can explain how to set up the ideal workflow for it? How to choose a graph visualization tool – Linkurious

  • Why My Netflix Library Looks Different (And How to Change It)

    Fixing the Netflix recommendation algorithm involves purging irrelevant content from viewing history, using separate profiles for passive viewing, and actively rating content to retrain the system. Users can reset their recommendations by accessing account settings to delete viewing history or by aggressively using thumbs-up/down buttons. For a detailed guide, visit How-To Geek. How to fix Netflix’s broken recommendations – How-To Geek

  • Music Connection:

    Led Zeppelin, R.E.M., David Bowie, and The Pixies are four of the most influential acts in rock history, each redefining the musical landscape of their respective eras. Together, they bridge the gap between 1960s blues-rock, 1970s glam and art rock, 1980s college radio, and the 1990s alternative rock explosion. The Artists at a Glance Era / Peak Primary Genre Key Sonic Signature Led Zeppelin Late 1960s – 1970s Hard Rock / Blues Rock Heavy riffs, booming drums, acoustic folklore David Bowie 1960s – 2010s Art Rock / Glam / Pop Chameleonic reinvention, theatrical vocals, avant-garde pop The Pixies Late 1980s – 1990s Indie / Alternative Rock Loud-quiet-loud dynamics, surreal lyrics, jagged guitars R.E.M. 1980s – 2000s Jangle Pop / Alternative

    Mumbled/poetic vocals, ringing Rickenbacker guitars, sociopolitical themes Led Zeppelin: The Architects of Heavy Rock

    Formed in London in 1968, Led Zeppelin fused visceral American blues with British folk and unprecedented sonic volume. Jimmy Page’s heavy, layered guitar production, Robert Plant’s high-pitched vocal wail, John Paul Jones’s versatile bass and keyboard arrangements, and John Bonham’s thunderous drumming created the blueprint for hard rock and heavy metal.

    The Impact: They became the biggest stadium act of the 1970s, abandoning traditional singles to focus on cohesive, epic albums.

    Essential Listening: “Stairway to Heaven,” “Whole Lotta Love,” “Kashmir,” “Immigrant Song.” David Bowie: The Ultimate Musical Chameleon

    David Bowie was an English singer-songwriter and actor who spent five decades pushing the boundaries of popular music and visual presentation. He constantly shed musical identities—from the acoustic folk of Space Oddity, to the sci-fi glam rock of Ziggy Stardust, the icy electronic “Berlin Trilogy,” and the 1980s mega-pop of Let’s Dance.

    The Impact: Bowie legitimized theater, fashion, and gender-fluidity in rock music, proving that a pop star could treat their entire career as high art.

    Essential Listening: “Heroes,” “Space Oddity,” “Life on Mars?,” “Changes,” “Starman.” The Pixies: The Blueprint for 90s Alternative

    Hailing from Boston, The Pixies (Black Francis, Kim Deal, Joey Santiago, and David Lovering) blended jagged surf-rock guitars with raw, screaming vocals and bizarre lyrics about aliens, religion, and pop culture.

    The Impact: They pioneered the “loud-quiet-loud” song structure (soft verses, explosive choruses) that directly inspired Kurt Cobain. Without The Pixies, Nirvana’s “Smells Like Teen Spirit” would not exist.

    Essential Listening: “Where Is My Mind?,” “Debaser,” “Monkey Gone to Heaven,” “Here Comes Your Man.” R.E.M.: The Kings of College Radio

    Formed in Athens, Georgia, in 1980, R.E.M. (Michael Stipe, Peter Buck, Mike Mills, and Bill Berry) built the underground “college rock” circuit from scratch. They started with a mysterious, murky, guitar-driven jangle sound and gradually evolved into global superstars capable of filling stadiums while maintaining their political convictions and artistic integrity.

    The Impact: They proved that an indie band could sign to a major label, conquer world charts, and still sound deeply human and experimental.

    Essential Listening: “Losing My Religion,” “Everybody Hurts,” “Radio Free Europe,” “It’s the End of the World as We Know It.”

    If you would like to explore further, I can recommend which albums to start with for any of these artists, map out their biggest musical rivalries, or suggest other artists who sound like them. Which direction

  • How to Program Your Own Procedural Isometric Tileset Generator

    How to Program Your Own Procedural Isometric Tileset Generator

    Procedural generation creates endless game assets with minimal storage. Building an isometric generator combines math with texture layering. This guide covers the logic, architecture, and code to build your own tool. 1. Understand Isometric Math

    Isometric projection uses a 2:1 ratio. Every pixel of height requires two pixels of width. This creates the illusion of 3D depth on a flat 2D screen. Coordinate Transformation

    Standard 2D screens use Cartesian coordinates (X, Y). Isometric engines use isometric coordinates (IsoX, IsoY). To convert regular coordinates to isometric coordinates: IsoX = (X - Y)(TileWidth / 2) IsoY = (X + Y) * (TileHeight / 2)

    To convert isometric coordinates back to screen coordinates: X = (IsoX / (TileWidth / 2) + IsoY / (TileHeight / 2)) / 2 Y = (IsoY / (TileHeight / 2) - IsoX / (TileWidth / 2)) / 2 2. System Architecture

    A robust generator separates map data from visual presentation. This separation allows you to swap visual styles without rewriting the generation algorithms.

    +————————————————-+ | Noise Engine | | (Perlin / Simplex / Layered Octaves) | +————————+————————+ | v +————————————————-+ | Heightmap Data | | (Raw 2D Array of Float Values) | +————————+————————+ | v +————————————————-+ | Tile Selector | | (Biomes, Slopes, Auto-Tiling Logic) | +————————+————————+ | v +————————————————-+ | Isometric Renderer | | (Draw Order, Depth Sorting, Export) | +————————————————-+ 3. Step-by-Step Implementation Step 1: Generate the Heightmap

    Use Perlin noise to generate natural terrain. Noise functions return values between 0.0 and 1.0. Higher values represent mountains, while lower values represent valleys.

    import noise import numpy as np def generate_heightmap(width, height, scale, octaves, roughness): grid = np.zeros((width, height)) for x in range(width): for y in range(height): # Calculate noise value for current coordinates value = noise.pnoise2(x / scale, y / scale, octaves=octaves, persistence=roughness) # Normalize to 0.0 - 1.0 range grid[x][y] = (value + 1) / 2 return grid Use code with caution. Step 2: Define Biomes and Tile Rules

    Map the raw noise values to specific tile types. Use threshold values to determine where water stops and grass begins.

    def assign_tile_type(elevation): WATER_LEVEL = 0.3 SAND_LEVEL = 0.4 GRASS_LEVEL = 0.7 if elevation < WATER_LEVEL: return “water” elif elevation < SAND_LEVEL: return “sand” elif elevation < GRASS_LEVEL: return “grass” else: return “stone” Use code with caution. Step 3: Handle Isometric Slopes and Walls

    Flat tiles look unnatural on a heightmap. To fix this, your generator must analyze neighboring tiles to calculate slopes or add vertical walls.

    The Check: Compare the height of the current tile with its four direct neighbors (North, South, East, West).

    The Action: If a neighbor is lower, draw a vertical wall texture downward from the edge of the current tile. Step 4: Implement Depth Sorting

    Drawing isometric tiles in the wrong order breaks the 3D illusion. Render tiles from back to front using the Painter’s Algorithm. Start drawing at the top corner of the map grid (0, 0). Loop through rows and columns outward.

    Render higher elevation layers last so they overlap lower layers.

    def render_map(map_data, tile_images): # Width and height of the map grid cols = len(map_data) rows = len(map_data[0]) # Outer loop for background-to-foreground sorting for target_sum in range(cols + rows - 1): for x in range(cols): y = target_sum - x if 0 <= y < rows: tile = map_data[x][y] iso_x = (x - y) * (TILE_WIDTH // 2) iso_y = (x + y) * (TILE_HEIGHT // 2) # Offset vertical position based on heightmap elevation elevation_offset = tile.height * VERTICAL_STEP draw_tile(tile.image, iso_x, iso_y - elevation_offset) Use code with caution. 4. Advanced Polish Techniques Color Variations

    Slightly shift the hue or brightness of identical tiles based on a secondary noise map. This eliminates repetitive grid patterns in large biomes. Ambient Occlusion

    Darken the corners where walls meet floors. Check adjacent tiles for height differences and apply a transparent black gradient asset to simulate realistic shadows. Exporting the Tileset

    Package your generated tiles into a single texture atlas. Save a accompanying JSON file containing the UV coordinates, pixel dimensions, and anchor points for game engine integration. If you want, I can: Provide the complete Pygame script for this generator Explain how to add procedural tree placement Write algorithms for smooth auto-tiling transitions

  • First Impression,

    Nailed It! is a hit American reality television baking competition that premiered on Netflix in 2018. The show is a lighthearted, comedic spin on traditional cooking shows, drawing inspiration from Internet “Pinterest fail” memes where home cooks try and hilariously fail to recreate beautiful desserts. 🎬 The Show Setup

    The Contestants: Each episode features three amateur bakers who have a terrible track record in the kitchen.

    The Challenge: They must try to recreate highly complex, professional-grade cakes and confectionery.

    The Reward: The competitor who comes the closest to copying the masterpiece wins a $10,000 cash prize (shot out of a money gun) and a “Nailed It!” trophy.

    The Results: Because the contestants lack professional skills, the outcomes are usually a “hot mess,” resulting in melting, misshapen, and terrifyingly funny creations. 🎙️ The Hosts and Judges

    The chemistry of the hosting duo is a major highlight of the series:

    Nicole Byer: An Emmy-nominated comedian and actress who hosts the show with loud, joyful energy despite having no baking experience.

    Jacques Torres: A world-renowned French pastry chef and master chocolatier who acts as the head expert judge, offering a sweet and encouraging balance to the chaos.

    Wes Bahr: The show’s actual assistant director, who has become a fan-favorite running gag as Nicole constantly shouts for him to bring out trophies or prizes.

    Guest Judges: A rotating panel of guest comedians and pastry chefs join each episode. 🗣️ Origin of the Phrase

    The show gets its name from the popular English idiom “You nailed it!”. English idioms: You nailed it

  • Top 10 Reasons Why ReplaClude Is Changing the Industry

    While there is no established, mainstream framework or software application named “ReplaClude,” this concept highlights a powerful, universal strategy used by high performers to maximize their efficiency: replacing friction-heavy habits and concluding tasks decisively.

    True productivity is built on replacing draining routines with structured, high-yield workflows and systematically concluding your open loops to eliminate decision fatigue. 🔄 The “Replace” Phase: Optimizing Your Workflow

    To upgrade your daily output, you must identify low-value behaviors and replace them with high-impact systems.

  • Top 10 FreeSQL Tools to Speed Up Your Database Management

    Understanding Your Target Audience: The Core of Marketing Success

    A business cannot be everything to everyone. Trying to appeal to every single consumer wastes time, drains resources, and dilutes your brand message. Success requires focus. You must identify and understand your target audience. What is a Target Audience?

    A target audience is a specific group of consumers most likely to buy your product or service. These individuals share common characteristics, needs, and behaviors. They are the people who actively look for the solutions your business provides. Why Defining Your Audience Matters

    Saves Money: It eliminates wasted spending on people who will never buy from you.

    Improves Messaging: You can speak directly to the specific pain points of your customers.

    Boosts Conversions: Relevant marketing naturally leads to higher sales and stronger engagement.

    Guides Product Development: Customer feedback helps you improve your offerings to meet real market demands. Key Ways to Segment Your Audience

    To find your ideal customers, you need to divide the broader market into smaller, manageable groups based on specific data.

    Demographics: Age, gender, income, education, marital status, and occupation.

    Geographics: Country, region, city, climate, or population density.

    Psychographics: Values, beliefs, interests, lifestyle choices, and personality traits.

    Behavioral: Buying habits, brand loyalty, product usage rates, and benefits sought. How to Identify Your Target Audience

    Analyze Current Customers: Look at your existing buyer data to find common trends and traits.

    Conduct Market Research: Use surveys, interviews, and focus groups to gather direct feedback.

    Study Competitors: See who your rivals target and find gaps they might be missing.

    Create Buyer Personas: Build detailed, fictional profiles that represent your ideal customers.

    Test and Refine: Continuously monitor your campaign data and adjust your audience profiles as market trends shift.

    To help tailor this guide, what industry is your business in, and what specific product or service do you sell? Knowing your main business goal will also help me create a custom audience profiling strategy for you.

  • content format

    SingPoint 2011, previously known as SingAlong Player 2008, is a legacy multimedia creation and karaoke software designed for Windows PCs. Developed to allow users to play MIDI files with animated text and record their own music videos, it has largely been phased out in favor of modern, mobile-friendly singing applications. Software Overview & Key Features

    The software serves as a bridge between standard media playback and content creation by integrating several tools into a single platform:

    Customizable Karaoke Experience: Users can play MIDI files synced with animated lyrics on screen. You can adjust the instrumentation, playback tempo, audio volume, and transpose the musical key to suit your voice.

    Real-Time Video & Voice Capture: The software can record your webcam feed and microphone input simultaneously while a song plays, allowing you to create personalized music videos.

    WMV / WMA Conversion: It encodes your captured live performance and recorded audio directly into standard Microsoft formats (WMV for video and WMA for audio).

    Full-Screen Support: It features an easy toggle to push video presentations and animated lyrics into full screen, mirroring a traditional karaoke machine setup. System Requirements

    Because the software was released around 2011, it is explicitly built for older configurations:

    Operating System: Microsoft Windows XP, Windows Vista, or Windows 7 (Note: Audio and video capture features are known to not work on Windows XP).

    Hardware: An IBM PC-compatible processor running at 1.6 GHz or higher, at least 1 GB of RAM, a full-duplex sound card, and a DirectX 9.0 (or higher) compatible video card.

    Software Prerequisites: The application strictly requires the installation of Microsoft .NET Framework 4, Microsoft Expression Encoder 4, and Internet Explorer 6.0 or later. Download Availability

    The commercial product originally featured a free trial under a “2011CE” edition. However, the official website (neargod.net) is no longer an active, modern distributor.

    Legacy Mirrors: You can still find old installer packages hosted on secondary download repositories like Soft112’s SingPoint 2011CE Archive Page.

    Safety Warning: Because this software has not received modern security updates and relies on obsolete frameworks like .NET 4 and Expression Encoder 4, downloading it from unverified mirror sites carries security risks. Short Review & Modern Alternatives

    Our Verdict: 🌟🌟☆☆☆ (⁄5 Stars)While innovative for its time by offering real-time WMV encoding and MIDI transposing, SingPoint 2011 is entirely outdated and impractical for modern users. The strict operating system limitations (such as losing capture capabilities on Windows XP and lacking stable execution on Windows 10 or 11) make it highly frustrating to set up.

    If you are looking for modern, well-supported ways to sing, record, and practice, you should skip this legacy software and look into:

    Mobile Apps: Options like SingAlong on Google Play provide built-in AI audio analysis, automatic lyric suggestions, and vocal enhancement effects (echo, reverb, and pitch shifting) directly on your device. Other community-driven apps like iSing or Singit allow you to record performances and share them globally without complex system requirements.

    Offline Local Players: Apps like Sing Karaoke – Record Karaoke can instantly convert your local MP3 files into a karaoke track offline without needing specialized MIDI setups.

    If you are trying to install this on a specific vintage PC setup, let me know what operating system you are using so I can guide you through managing its prerequisites. SingAlong – Sing your passion – Apps on Google Play