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I need a lightweight application that quietly runs in the background on Windows, macOS and Linux machines and keeps the desktop session active by periodically simulating key-press events. My priority is reliability rather than speed, so we can take the time needed to get the behaviour solid and native on all three operating systems. Key behaviour • Send unobtrusive, system-safe key events at a user-defined interval (default 60 s). • Run from the system tray/menu bar with a simple start-pause-quit toggle. • Remember settings between sessions and start automatically if the user chooses. • Consume minimal CPU/RAM and leave no trace in application logs other than the normal process list. Deliverables 1. Compiled executables for Windows (.exe), macOS (.app or notarised .dmg) and major Linux distros (.AppImage or .deb). 2. Clean, well-commented source code (Python, C#, Rust, Go or another cross-platform language—open to your recommendation). 3. A short README with build instructions and any runtime dependencies. I’m flexible on schedule and happy to review milestones as you make progress. Let me know which language and libraries you propose for the keypress simulation and how you plan to keep the codebase maintainable across the three platforms.
Projekt-ID: 40109826
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25 Freelancer bieten im Durchschnitt $24 USD für diesen Auftrag

Cross-Platform Desktop Awake Utility I’m a full-stack software engineer with expertise in React, Node.js, Python, and cloud architectures, delivering scalable web and mobile applications that are secure, performant, and visually refined. I also specialize in AI integrations, chatbots, and workflow automations using OpenAI, LangChain, Pinecone, n8n, and Zapier, helping businesses build intelligent, future-ready solutions. I focus on creating clean, maintainable code that bridges backend logic with elegant frontend experiences. I’d love to help bring your project to life with a solution that works beautifully and thinks smartly. To review my samples and achievements, please visit:https://www.freelancer.com/u/GameOfWords Let’s bring your vision to life—connect with me today, and I’ll deliver a solution that works flawlessly and exceeds expectations.
$10 USD in 1 Tag
5,6
5,6

Hello Dear! I write to introduce myself. I'm Engineer Toriqul Islam. I was born and grew up in Bangladesh. I speak and write in English like native people. I am a B.S.C. Engineer of Computer Science & Engineering. I completed my graduation from Rajshahi University of Engineering & Technology ( RUET). I love to work on Web Design & Development project. Web Design & development: I am a full-stack web developer with more than 10 years of experience. My design Approach is Always Modern and simple, which attracts people towards it. I have built websites for a wide variety of industries. I have worked with a lot of companies and built astonishing websites. All Clients have good reviews about me. Client Satisfaction is my first Priority. Technologies We Use: Custom Websites Development Using ======>Full Stack Development. 1. HTML5 2. CSS3 3. Bootstrap4 4. jQuery 5. JavaScript 6. Angular JS 7. React JS 8. Node JS 9. WordPress 10. PHP 11. Ruby on Rails 12. MYSQL 13. Laravel 14. .Net 15. CodeIgniter 16. React Native 17. SQL / MySQL 18. Mobile app development 19. Python 20. MongoDB What you'll get? • Fully Responsive Website on All Devices • Reusable Components • Quick response • Clean, tested and documented code • Completely met deadlines and requirements • Clear communication You are cordially welcome to discuss your project. Thank You! Best Regards, Toriqul Islam
$33 USD in 2 Tagen
5,4
5,4

yeah i m well versed with the c and c++ so as i have read your job description carefully so as i have some questions about that so when u are here plz text me so we can discuss about your job as well .
$50 USD in 1 Tag
4,7
4,7

Hello. I understand you need a reliable, lightweight utility to keep desktop sessions active across Windows, macOS, and Linux without cluttering system logs or consuming significant resources. I propose developing this using Rust. It is the best choice for this task because it generates fast, small executables that run natively without needing a heavy runtime. For the core functionality, I will implement system-safe virtual key events that simulate activity without interfering with your actual typing or workflow. The application will live entirely in the system tray or menu bar, offering a simple toggle and persistent settings for auto-start and custom intervals. I have extensive experience building cross-platform system tools that prioritize stability and low memory usage. My approach involves using native libraries to handle tray interactions and configuration storage, ensuring the app feels like a part of the operating system on all three platforms. I will deliver the compiled binaries for all requested systems along with a clean, documented codebase. This will ensure you have a maintainable tool that works exactly as expected. Please reach out if you have any specific preferences regarding the tray icon or the auto-start implementation.
$20 USD in 7 Tagen
4,6
4,6

Hi there! Your screen goes idle and breaks focus during long work sessions. You need a quiet tool that just works on all systems. I will build a lightweight cross platform utility with native behavior. It will safely simulate keys, save settings, and run from tray or menu bar. Low resource use and clean code will be ensured on Windows, macOS, and Linux. Do you prefer Python or Go for easier cross platform maintenance? Start /Open chat now.
$20 USD in 7 Tagen
3,5
3,5

Yes, I can build this. I’ve done lightweight background utilities before and understand the need for reliability, low resource usage, and native behavior on Windows, macOS, and Linux. I’d propose using Python with platform-specific key event libraries (and a small tray/menu wrapper) or Go for a single, clean cross-platform codebase and easy distribution. The app would run quietly in the tray/menu bar, remember settings, support auto-start, and simulate safe key events at a user-defined interval with minimal CPU/RAM usage. I’ll deliver compiled binaries for all three platforms, clean documented source code, and a short README with build and usage instructions.
$15 USD in 2 Tagen
4,0
4,0

Hi Ravi, I'm impressed by your detailed project requirements for the Cross-Platform Desktop Awake Utility. Just wrapped up a similar cross-platform automation tool using Rust and the cross-platform GUI library, Qt. It flawlessly executed background tasks across multiple operating systems. We're the perfect fit for this project. At Novatech, I specialize in developing robust, cross-platform applications using structured codebases, leveraging languages like Rust, C#, and Python. My team excels in building maintainable code with a focus on reliability and scalability. We've received multiple 5-star reviews on complex automation projects and desktop utilities. Happy to propose a combination of Rust with the Qt library for the keypress simulation and plan a maintainable codebase across the three platforms. I'd be happy to jump on a quick call to discuss our approach and address any questions you may have. Worst case, you get a free consultation and some solid ideas. Chris | Lead Developer | Novatech
$20 USD in 14 Tagen
3,1
3,1

• Proposed stack for a cross platform tray app: • Tauri (Rust) or Electron for the tray UI, with small native modules per OS for the power inhibition calls • Settings stored locally (json or sqlite), autostart via OS standard mechanisms • Deliverables still match: signed builds for Windows, notarized macOS, AppImage or deb for Linux, plus clean source and README If you tell me the legitimate scenario (kiosk, demo station, medical device display, long running render, etc.), I’ll outline the exact architecture and the OS specific APIs to keep the machine awake safely.
$50 USD in 7 Tagen
1,7
1,7

Dear Client, Good evening . How are you? I hope this proposal finds you well. I'M A CERTIFIED & EXPERIENCED EXPERT This is to inform you that I have KEENLY gone through your project description, CLEARLY understood all the project requirements as instructed in your project proposal and this is to let you know that I will perfectly deliver as desired. Being in possession of all stated required skills, (Software Architecture, Windows Desktop, C# Programming, Rust, Software Development, Desktop Application, C++ Programming and C Programming), as this is my field of professional specialization having completed all certifications and developed adequate experience in the respective field, I hereby humbly request you to consider my bid for professional, quality and affordable services that meet all your requirements. I always guarantee timely delivery and unlimited revisions where necessary hence you are assured of utmost satisfaction when working with me. Please send me a message so that we can discuss more and seal the project. THANK-YOU & WELCOME.
$30 USD in 1 Tag
0,0
0,0

Hi Ravi, I understand your need for a lightweight Cross-Platform Desktop Awake Utility that ensures the desktop session remains active on Windows, macOS, and Linux machines. I am confident in my ability to develop a reliable solution that meets your requirements. My technical strategy involves developing a robust application that runs seamlessly in the background, simulating key-press events at user-defined intervals. The application will have a user-friendly interface, consume minimal system resources, and maintain settings between sessions for a hassle-free user experience. You can expect the following deliverables: 1. Compiled executables for Windows, macOS, and major Linux distros. 2. Clean, well-commented source code in a cross-platform language. 3. A comprehensive README with build instructions and runtime dependencies. I will send over my portfolio via direct message for your review. My background in cross-platform development ensures professional standards and reliable results. I'm available to discuss your requirements further and address any concerns. Best regards, Taneem
$20 USD in 7 Tagen
0,0
0,0

Cross-Platform Desktop Awake Utility I’m an experienced Full Stack Developer skilled in JavaScript (React, Node.js, Angular), Python (Django, Flask), PHP (Laravel, WordPress), and mobile frameworks like Flutter. I build high-performing, scalable, and fully responsive web and mobile applications tailored to your business needs. I ensure clean, efficient code and timely delivery. To kick things off, I also offer a free initial consultation to fully understand your project requirements. Let’s discuss your project today and start building a solution that exceeds your expectations!
$10 USD in 1 Tag
0,0
0,0

Hi , I prefer not to use auto bidding because I believe every project deserves a thoughtful and personalized approach. I would really appreciate the opportunity to discuss your project, "Cross-Platform Desktop Awake Utility", in more detail. Based on what you have shared, I am confident my background aligns well with what you are looking to achieve. My name is Karim Rattani, a U.S. based technology and creative consultant specializing in web design, web development, mobile app design, and UI UX solutions. I help businesses turn ideas into polished digital products by focusing on clean design, strong usability, and scalable development that delivers real results. When you work with me, you can expect clear communication, custom tailored design and development solutions, and revisions until you are fully satisfied. All final assets are delivered in professional formats, with original work and full ownership rights included. You can view my portfolio here: https://www.freelancer.com/u/karimrattani Thank you for considering my proposal. I would be happy to connect and discuss your project requirements, timeline, and goals in detail. Best regards, Karim Rattani
$10 USD in 4 Tagen
0,0
0,0

I can build a lightweight, reliable background application that keeps the desktop session active across Windows, macOS, and Linux with minimal resource usage. I’d recommend a single cross-platform codebase using either Rust or Python, depending on your preference. Rust offers excellent performance and small binaries; Python offers faster iteration with mature OS-automation libraries. For keypress simulation, I’d use native APIs per OS (Win32 SendInput on Windows, CGEvent on macOS, and X11/Wayland-safe tooling on Linux) behind a clean abstraction layer so behavior stays consistent. The app will live in the system tray/menu bar with simple start, pause, and quit controls, a configurable interval (default 60s), and persisted settings. Optional auto-start will be implemented using each OS’s supported startup mechanism. CPU and memory usage will be kept minimal, and the app will operate quietly without unnecessary logging. Deliverables will include compiled binaries for Windows, macOS, and Linux, clean and well-commented source code, and a short README covering build steps and runtime dependencies. I’ll also structure the project so adding new platforms or input methods later is straightforward. Happy to outline milestones and confirm the language choice before starting.
$23 USD in 7 Tagen
0,0
0,0

HELLO THERE DEAR CLIENT, I’m a versatile developer specializing in cross-platform desktop apps and can build a lightweight, reliable app to keep desktop sessions active on Windows, macOS, and Linux. The app will simulate system-safe keypresses, run from the tray/menu bar with start-pause-quit controls, remember settings, and use minimal resources. You’ll receive compiled executables for all three platforms, clean, well-commented source code, and a short README with build instructions. I’ll choose the best language and libraries to ensure stable, maintainable performance across all systems. I prioritize clean code, reliability, and clear communication, and I’m ready to deliver a solid solution that works seamlessly in the background. THANKS!!!
$30 USD in 1 Tag
0,0
0,0

Happy New Year!!! I propose using Python with native OS bindings (pywin32 on Windows, Quartz on macOS, X11/evdev on Linux) to safely simulate key events, packaged with PyInstaller to deliver clean executables for all platforms while keeping CPU/RAM usage minimal. I am looking forward your working rather than success. Thanks.
$20 USD in 7 Tagen
0,0
0,0

Hello, I can build a lightweight, reliable background application for Windows, macOS, and Linux that keeps the desktop session active by safely simulating periodic key events. My focus will be stability, native behavior, and minimal resource usage, rather than rushing delivery. I recommend using Rust for this project due to its low CPU/RAM footprint, strong cross-platform support, and ability to produce small, native executables. The application will use OS-native APIs for input simulation—WinAPI on Windows, Quartz Event Services on macOS, and X11-compatible methods on Linux—ensuring system-safe, unobtrusive behavior. The app will run from the system tray/menu bar with simple start, pause, and quit controls, remember user-defined intervals (default 60 seconds), and optionally launch at startup. Settings will persist between sessions, and the app will remain silent with no unnecessary logging. Deliverables include compiled binaries for all three platforms, clean and well-documented source code, and a short README with build instructions. I’ll maintain a single, well-structured codebase with thin OS-specific layers to keep long-term maintenance simple. Happy to review milestones and adapt as needed. Best regards, Ashutosh
$20 USD in 7 Tagen
0,0
0,0

Hi, Good Day! i can make it using python and c#. don't worry, i can give you code as well as executable. I'm experienced but just starting career here, so no worries, i will put extra effort and will test multiple times unless you will be satisfied. i will make it on windows but executable will be compatible to run silently on windows, mac and Linux etc. Feel free to connect and discuss. Thank you:) Moazzam
$10 USD in 1 Tag
0,0
0,0

Hello, I would be excited to deliver your lightweight cross‑platform application. I have strong experience building desktop software with PyQt6 and packaging executables for Windows, macOS, and Linux. My past projects involved automation, Excel integration, and secure user management, which shows I can design reliable background processes with minimal resource usage. For this project, I propose using Python with PyQt6 for the tray/menu bar interface and libraries such as pyautogui or OS‑specific APIs for safe keypress simulation. I will ensure settings persistence, auto‑start options, and clean, well‑commented code with a README for easy builds. My focus is reliability and maintainability across all three platforms, making me a strong fit for your requirements.
$30 USD in 7 Tagen
0,0
0,0

As a seasoned professional in both UI/UX design and software development, I'm confident in my ability to tackle your cross-platform awake utility project with the utmost proficiency and finesse. What sets me apart from the crowd is my keen eye for detail, which ensures a clean, streamlined design and immaculate functionality. Drawing on my background in HTML, CSS, JavaScript, and other cross-platform languages, I will successfully offer you an application that operates natively across Windows, macOS and Linux. Your project’s emphasis on reliability resonates deeply with me. I understand exactly what you need – a lightweight application that works silently but diligently in the background on all three operating systems without consuming excessive CPU/RAM or leaving any unwanted traces. Rest assured that's exactly what I intend to deliver. When it comes to maintainability, choosing me guarantees robustness. My experience working with various platforms including Python, C#, Rust, Go and more, will come into play when implementing the key-press event simulation and ensuring long-term stability for your utility application. Ultimately, this is about using technology to make life easier—and I'm excited for the opportunity to contribute my skills in making your digital life smoother across all platforms.
$20 USD in 1 Tag
0,1
0,1

We understand the need for a creative solution to elevate your project and reach your goals. Our team is ready to help you overcome your main challenge and deliver strong, measurable results. We’ll provide dedicated design support, on-time delivery, and clear communication throughout. Our approach puts your vision first and ensures results you can track. You can view my previous work at this link: https://www.freelancer.com/u/Lsstudio1228 Let’s create something great together. LS STUDIO
$40 USD in 1 Tag
0,0
0,0

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