C programing appsงาน

I need a C function capable of interfacing with the Windows location services and Linux's geoclue2 to acquire the current location (longitude and latitude) on both platforms. - The function should aim to provide location data with the highest possible accuracy, utilizing GPS, Wi-Fi positioning services, and GEO IP location services. - In cases where the location data retrieval fails, the function should be designed to return an error code. The ideal candidate for this job should possess: - Proficiency in C language. - Familiarity with Windows location services and Linux's geoclue2. - Experience in working with GPS, Wi-Fi positioning, and GEO IP location services. - Capability to handle error cases efficiently with return error codes. - Previous experience in the d...

I'm looking to develop an Android app using .NET MAUI that focuses on facial detection and tracking for attendance monitoring. Key Requirements: - **Facial Detection:** The app should be able to detect faces in real-time. - highlight detected fac...automatically. - **Attendance Tracking:** The primary goal of the app is to leverage this face recognition technology for attendance tracking purposes.(but no need do any page for this now ) Ideal Skills: - Proficient in .NET and MAUI platform for Android development - Strong experience with facial detection and recognition technologies - Prior work on real-time server communication from mobile apps - Familiarity with attendance tracking systems would be a plus Please provide a brief summary of your experience with similar projec...

We are in need of a Software Engineer to implement the EtherCAT SEMI profile (ETG5003) in a bare-metal ARM microcontroller environment. The target device firmware is written in C and runs on an ARM Cortex-M3 processor. The Anybus CompactCom B40 module is used to interface between the software and the EtherCAT network. You will join a very small team of software developers working on this project. Ideal experience: - C programming - EtherCAT (especially EtherCAT SEMI) - Anybus CompactCom - Bootloaders/Firmware Updates - File Handling

I'm looking for a Microsoft Power Platform expert to help me packa...Environment variables - Connection references Required Application Information: Freelancers interested in this project should provide a brief description of their relevant experience and knowledge. Ideal Skills and Experience: - Microsoft Power Platform and Dataverse Expertise - C# and .NET Development - Package Deployer Tool Proficiency - Power Apps CLI and Visual Studio Code - Experience with Dynamics 365 SDK - Previous experience in publishing PowerApps solutions on AppSource - Ability to work with canvas apps, component libraries, Power Automate flows, environment variables, and connection references - Strong problem-solving skills - Good understanding of the AppSource platform. Looking...

I'm looking for a C# Desktop App Developer with Angular experience for a full-time position. The app will involve significant front-end work using Angular. Requirements: - Proficient in C# and Angular - Strong understanding of desktop application development - Familiarity with integrating front-end and back-end systems - Ability to work full-time on the project - Good communication skills and ability to work in a team If you're an experienced developer in these technologies and are looking for a full-time commitment, I'd love to discuss this opportunity with you.

I'm in need of a skilled mobile app developer to create a ride booking app, with a design theme of 'Modern'. The app will be multi-platform, available on both Andro...reliable GPS tracking to ensure smooth navigation and route optimization for drivers. - Payment Integration: Seamless and secure payment processing is a critical feature for the app. - Rating and Reviews: A feature allowing users to rate and review the service provided by drivers. The ideal freelancer for this project will have: - Proven experience in mobile app development, specifically ride booking apps or similar. - Proficiency in both Android and iOS platforms. - Expertise in GPS integration, payment gateways, and user review systems. - A keen eye for modern design, ensuring the app is user-friendl...

...issues quickly and effectively. - Excellent communication skills and ability to work collaboratively in a remote team environment. **Preferred Qualifications:** - Previous experience working on ride-hailing or real-time communication apps. - Familiarity with CI/CD pipelines for Flutter applications. - Knowledge of advanced Flutter and Dart features. - Experience with other state management solutions in Flutter, such as Provider or Riverpod. **To Apply:** Please send your resume, portfolio, and a brief description of your experience with ride-hailing apps, Bloc state management, and two-way communication systems. Include examples of relevant projects and your specific role in those projects....

Hi Ozias C., I noticed your profile and would like to offer you my project. We can discuss any details over chat.

...cryptocurrency - Inclusion of secure transactions for premium package purchases Your role in this project will be to design and implement a user-friendly interface that enables seamless navigation and functionality across both iOS and Android. You'll also need to integrate secure and reliable crypto wallet options to facilitate premium package purchases. Prior experience in building crypto-based apps and a solid understanding of cryptocurrency wallets will be a significant advantage. Ideal Skills and Experience: - Cross-platform app development (iOS, Android) - Crypto mining app development - Familiarity with cryptocurrency wallets and transactions - Previous experience in integrating payment gateways - Strong UI/UX design skills - Security-conscious mindset to ensure user...

...Uploading: Implement a mechanism for uploading collected data to the cloud. - Single Page Display: Design a single, easy-to-navigate page for the application. - Settings Page with Reports: Add a settings page where users can configure the app and view reports. - Devices Settings: Create a section for managing connected devices/settings. Key requirements: - Proven experience in developing Android apps, especially those involving BLE capture and cloud integration. - Strong UI/UX design skills, with a focus on creating a single page display. - Familiarity with Android TV OS would be a plus. - Experience in working with real-time and historical data capturing. - Knowledge of data visualization techniques to enhance the user experience. I'm looking for a developer who can bri...

I'm in need of an intermediate Shopify developer to help me cre...intermediate Shopify developer to help me create a new webpage using a page builder app, similar to one of my reference pages. Key Tasks: - Develop a Shopify page that mirrors the format and functionalities of the reference page - Use a Shopify page builder app to make the process easier and smoother Ideal Skills: - Proficiency in Shopify page development - Experience with Shopify page builder apps - Ability to replicate an existing webpage layout - Strong attention to detail - Ability to understand and implement design requirements accurately In your application, please include a detailed project proposal outlining how you plan to approach this project and your relevant experience. Looking forward to seeing ...

I'm in need of an experienced mobile app developer who can fix an issue with our current application whereby it is failing to reflect updates made on Flux Builder, due to a malfunctioning API connection between Flux Builder and Vercel. Ideal Skills - Proficiency in mobile app development for both iOS and Android. - Previous experience in building E-commerce apps. - Familiarity with integrating shopping cart functionality. - Ability to design and implement promotional features within the app. Please include any relevant work samples in your bid. Looking forward to hearing from you!

I'm currently looking for an iOS developer who can help with deploying my app to TestFlight. Key Responsibilities: - Assist with setting up the app for deployment on TestFlight - Ensuring the app is fully functional and stable on the platform Ideal Candidate: - Proficient in iOS development - Experience with deploying apps to TestFlight - Strong attention to detail This is a simple project that requires an expert in iOS app development and deployment. Please reach out if you have the right skills for this job.

...based on device MAC address. User-selectable password after admin approval. Login expiration for enhanced security. Write well-documented and commented source code for both the Android application and admin panel. Qualifications: Proven experience in Android app development (Java/Kotlin). Proficiency in Laravel framework, MySQL, and PHP. Strong understanding of security best practices for mobile apps and web development. Excellent communication and collaboration skills. Benefits: Competitive salary and benefits package. Opportunity to work on a challenging and innovative project. Work in a collaborative and fast-paced environment. Please submit your resume and a cover letter highlighting your relevant experience. Additional Notes: The admin panel should allow for single-click...

We make cozy games for mobile and cross-platform. We are an indie team focused on creating our own high quality games and IP via global free-to-play mobile games. Our mission is to championing social good ...and flexible work environment - no management, no crunch - Working on innovative games and tech with founding team How to Apply: - Send us your resume/CV - Include a brief cover letter explaining why you'd be a great fit - Share any relevant portfolio or code samples - We will contact qualified candidates within 3 days Skills Needed: LAMP, PHP, MySQL, NoSQL, JavaScript, HTML, Cloud hosting, Web Apps, APIs Ideal Candidate: - Located in California or west coast USA - Interest and knowledge of mobile and/or F2P games - Experience with Unity and Digital Ocean - Read "G...

...which includes website and apps for both Android and iOS. The portal should be able to efficiently enhance productivity and streamline business processes. Crucial components to be developed include: - Customer Relationship Management (CRM) with key features such as contact management, sales forecasting, and lead management. - Enterprise Resource Planning (ERP) with essential functions such as inventory management, order management, and supply chain management. - Financial and taxation modules. - Human resources and marketing modules. - Service and productivity modules. An ideal person for this job should have: - Proven experience in creating and managing business portals with similar components. - Proficiency in various programming languages for website and apps deve...

I'm seeking a skilled freelancer proficient in the C programming language to develop comprehensive unit tests that cover functions and modules. You'll need to create scenarios for both normal and edge cases. On completion, I require a report only detailing any failed test cases. You must possess: - In-depth knowledge of functions and modules in C - Experience in developing unit test cases - Ability to analyse and provide comprehensive reports for failed test cases - A keen eye for detail to spot and handle edge cases appropriately - Ability to use VectorCast

I'm in need of a professional who has extensive experience with SharePoint, Power Apps, Power Automate, and secondary Power BI . I need support for my consultant indian time 8:30 pm to 11:30 pm Monday to Friday. 12$/hourly.. payment every saturday vai peayplea. I already have other indian guys who are working with me since 2019 to present. This support will be on zoom meeting. Which we will provide u and u will connect with my consultant for support.

About Us: Digital Innovations is a cutting-edge technology company specializing in web and mobile apps and digital solutions. We are passionate about creating innovative mobile applications that provide exceptional user experiences. Our team is dedicated to pushing the boundaries of technology to deliver top-notch solutions to our clients. Job Description: We are seeking a talented and motivated Part-Time iOS Mobile App Swift Developer to join our team. In this role, you will work closely with our development team to design, develop, and maintain iOS applications using the Swift programming language. This position offers the flexibility of working part-time, making it ideal for candidates looking to balance work with other commitments. Key Responsibilities: Collaborate with the d...

Need developer with experience in android app to help in fixing error Requirements are Must have knowledge about mobile apps And have skills about android apps and game

Hi The task is to set up a password protected instance of the OWASP WebGoat running in AWS that is internet facing. To be successful the deployme...Docker container. The container should run in ECS FarGate using the Docker container provided by OWASP. It can be run as a Task, a Service is not required. * The WebGoat Docker container should be stored in AWS ECR * Three bash scripts are required, these are: (a) Build the environment (ECR, cluster, Route53, PKI certs, etc) (b) Start the WebGoat Task in ECS (note: A Task is preferred to a Service) (c) Stop the WebGoat Task in ECS Everything must be run via a bash script that use CloudFormation. If there are any manual steps then a readme explaining what to do is to be provided. Let me know if any clarifications are required. Tha...

I'm in need of a skilled freelancer to assist in finalizing my email list building project. Your role will be to source C-Level leads and their contact details, ensuring they meet the specified criteria. Key Responsibilities: - Source C-Level leads in the technology industry - Gather email addresses and LinkedIn profiles for each lead - Ensure all sourced leads meet the specified criteria This project requires you to source between 100-300 C-Level leads. I value accuracy and efficiency and am looking for a competent and reliable freelancer to assist in this final crucial step of the project.

...shop and newest Prestashop 8+.(Payment solution) 1. Code a module able to handle multiple shops to use the main shops payment processor/ Merchant account. Multishop option. When an multishop is added the module can add the new shop. 2. All communications and transactions with payment processors must appear as if they are conducted by Shop A, regardless of whether Shop A or Shop B/C/D is placing the order. 3. Shop B/C/D cannot use an URL (landing page) of Shop A. Find a solution. 4. The Backoffice function on order page showing from what multi shop the order was placed must work. TASK 3 Code a module compatible with multi shop and newest Prestashop 8+.(Product name) 1. Code a module able to handle a secondary product name hook. 2. The secondary product name hook n...

I'm seeking an expert C# developer to create a powerful software for Windows that will cater to the needs of advanced-level programmers. Key Features: - The software should encompass all the essential functions required for an advanced C# developer including code editing, compilation, and debugging - The program must be user-friendly yet comprehensive to accommodate the intricate requirements of advanced users Skills and Experience: - Strong proficiency in C# programming is mandatory - Prior experience in designing and developing development tools is highly preferred - A solid understanding of Windows operating system is crucial The primary goal of this project is to deliver a highly functional, effective, and efficient tool for the advanced C# progra...

Required a dot net developer. Speacialized in Microservices acrhitecture based solution. Dotnet Core, C#, SQL, Data transformation, API gateway, Auth based security.

I am looking for an experienced .NET developer who has worked on both web and desktop applications. The ideal candidate should also have a strong background in algo trading and low latency applications. Key Requirements: - Experience with C# and Visual Studio for .NET development. - Previous work on both web and desktop applications. - Proven experience with algo trading. - Prior experience working in low latency applications - React JS work experience is added advantage Skills: - Worked with Websocket, REST APIs - React JS - Ability to understand code written by others and refactor. - Write clean, robust and performant code. Your role will involve: - Building and maintaining robust, high performance applications. - Using your knowledge of algo trading to implement and optimize t...

I'm looking for a highly skilled QT senior development engineer to help build a desktop application. This project will tap into your expertise in various areas such as C++ programming, the QT framework, and user interface design. Key Skills & Experience: - Strong proficiency in C++ - Extensive experience with the QT framework - Excellent User Interface (UI) design skills - Knowledge in Python and 3D will be a plus The main function: 1: Windows platform, jointly developed by QT+python. 2: Communicate with hardware devices through serial port/Ethernet. 3: Support MODBUS-485, TCP, UDP and other communication protocols, with 1ms cycle response. 4: Support hardware parameter configuration, multi-channel data analysis, storage, data playback, and support real-time data...

i am looking for full time work in my company if you are ready to work full time let me now Key responsibilities include: - Developing the C# desktop application - Ensuring the application is compatible with different operating systems Skills and experience that will be required: - Proven experience in C# development - Experience in developing desktop applications - Ability to deliver under tight deadlines Please submit your proposal and relevant experience.

I'm in search of an experienced professional mobile app developer to help in the creation of an educational app that will revolutionize the w...creating educational tools and initiatives is paramount, and experience in that specific field would put you to the front of the line. Skills and Experiences: - Proven experience in mobile app development - Familiarity with common mobile interface designs - Strong understanding of educational software - Cross-platform development skills (e.g., Flutter, React Native) - Prior work on educational apps is a plus. Please note the social networking functionalities to be included in the app are yet to be finalized; more details will be shared with the chosen developer. Looking forward to discussing your ideas on creating a top-notch educatio...

I'm in need of an experienced app developer to create an e-commerce app for both iOS and Android platforms. The primary goal of this app is to support online purchases and transactions. ...primary goal of this app is to support online purchases and transactions. Key features I'm looking for include: - A user-friendly interface for making purchases - Secure payment gateways for transactions - A robust product catalogue and search functionality - A system for tracking orders and managing accounts - Notifications for order alerts and promotional offers Experience in creating e-commerce apps is a must. Your expertise in both iOS and Android platforms is crucial, as the app needs to be developed for both. The app will need to be reliable, user-friendly, and secure to handle ...

Hi Alexander Anto C., I noticed your profile and would like to offer you my project. We can discuss any details over chat.

I am in need of a React Native developer to create a digital HR face recognition app for attendance marking. Key Requirements: - The app should be compatible with Android...Native developer to create a digital HR face recognition app for attendance marking. Key Requirements: - The app should be compatible with Android devices. It will not be deployed to iOS. - The facial recognition data should be secured with standard encryption. - No integration with existing HR software is needed. The ideal candidate should have experience with: - React Native and building mobile apps. - Implementing facial recognition technology. - Ensuring data security through encryption. I am open to suggestions and ideas on how to enhance the app's performance and usability. Looking forward to ...

I'm in need of a backend developer with experience in PHP and deploying Flutter apps on shared hosting. Key Requirements: - Configure the backend using PHP - Deploy the Flutter app on a shared hosting environment - Ensure the app functions properly in this setup - Provide any necessary support during and after the deployment Please note that I've already set up the custom domain for the app, hence your assistance won't be needed in that aspect. Ideal Skills: - Proficiency in PHP - Previous experience deploying Flutter apps on shared hosting - Strong understanding of server configurations and optimization - Good communication skills and ability to provide technical support if required. Looking forward to your bids.

I am in need of an experienced Android developer with a demonstrable background in creating utility apps. The core features should include: - Synchronization across devices: The app should seamlessly synchronize data and tasks across various devices. - Offline usability: It's of utmost importance that this app retains full functionality even when offline. - User analytics: The ability to analyse user activity within the app will be a key feature to help modify and improve usability. The ideal candidate will have a strong understanding of Android development, and previous experience with device synchronization, offline usability, and user analytics. You must demonstrate your experience in these areas for your bid to be considered.

...This might involve scheduling appointments, following up on inquiries, or other related tasks. Communication is key in this role, so you should be comfortable using various tools. I prefer to communicate task details through email, messaging apps, and occasionally through video calls. Please ensure you are able to work with these communication methods before applying for this role. Ideal Skills: - Strong internet research skills - Excellent communication skills - Comfortable making occasional phone calls - Proficiency in email and messaging apps - Familiarity with video conferencing tools Experience with virtual assistance or similar roles is a plus, but not required. I'm primarily looking for someone who is organized, reliable, and able to work indepen...

I'm looking for an expert Flutter developer who can create a social networking app for both Android and iOS. Here are the key features I'd like to be includ...to be included in the app: - Messaging System: Users should be able to send and receive messages from other users. - Profile Customization: Users should have the ability to customize their profiles with personal information, profile picture, and more. - Photo & Video Sharing: The app should allow users to share photos and videos with their connections. Experience in developing social networking apps is preferred, as well as a good understanding of both Android and iOS platforms. Knowledge of Flutter, Firebase or other backend services, and UI/UX design will be a big plus. Please provide examples of your previou...

I'm looking for a skilled programmer to help me convert my invention into an app for iOS and Android devices. It is preferred that you're located here in SAN DIEGO, CA...however it's not absolute. Key requirements: - I'm open to the programming language, so your expertise in Python, Java, or C and C ++ would be beneficial in guiding the decision. - The main functions the app should possess are user authentication and data storage. I will require a Non Disclosure Agreement [NDA] to proceed with details of the invention. If you've got experience in app development [Coding] and can help me bring my invention to life on mobile devices, please reach out. Looking forward to working with you! Thanks, Mike

More details: Is this project for business or personal use? Personal What information should successful freelancers include in their application? Detailed project proposals How soon do you need your project completed? ASAP.

Quiero pasar estas dos funciones de C++ a C template<class T> int EEPROM_put(int ee, const T& value) { const byte* p = (const byte*)(const void*)&value; unsigned int i; for (i = 0; i < sizeof(value); i++) foo(ee++, *p++); return i; } template<class T> int EEPROM_get(int ee, T& value) { byte* p = (byte*)(void*)&value; unsigned int i; for (i = 0; i < sizeof(value); i++) *p++ = foo(ee++); return i; }

I'm seeking a talented app developer to create an e-commerce app compatible with both iOS and Android platforms. Please consider the following specific features and re...shopping functionality. - Incorporating a live chat feature will enhance customer service, providing users real-time support and interface for queries and concerns. Ideal Skillset: * Strong proficiency in iOS and Android app development. * Past experience designing e-commerce apps. * Experience in incorporating in-app purchases and live chat functionality is preferred. * Knowledge in user-interface design for retail mobile apps. The perfect candidate should have a proven track record in developing user-friendly e-commerce apps, with particular emphasis on platforms that offer in-app purchases a...

I'm looking for a skilled React Native developer to build a mobile application that will focus on identity and credential management. The application should be compatible with both iOS and Android platforms. Key Requirements: - Frontend Expert with proven React Native experience. - Ability to build cross-platform mobile applications. - C1 English (Advanced) Beneficial: - Strong understand...experience. - Ability to build cross-platform mobile applications. - C1 English (Advanced) Beneficial: - Strong understanding of managing and storing secure data for the identity and credential management. The app will not need to be integrated with any existing systems. The ideal freelancer will demonstrate a keen attention to detail and have experience in developing secure and intuitive mobi...

I'm looking for a skilled app developer with expertise in both iOS and Android platforms. The primary function of the app is car service booking. It should have a clean, intuitive interface and be secure to ensure user trust. Ideal Skills and Experience: - Expertise in developing apps for both iOS and Android - Experience in developing service booking apps - Knowledge of secure app development - Strong UI/UX skills Features to Include: - Users should be able to book and pay for services - The app should store previous service records for easy rebooking - Should have a system to compare prices from different service providers. Your proposal should include a timeline and cost estimates for the project.

I am initiating a new enterprise and I need a proficient mobile app developer who can create a user-friendly e-commerce application for both Android and iOS platforms. Key Responsibilities: - Develop a robust e-commerce application ...developer who can create a user-friendly e-commerce application for both Android and iOS platforms. Key Responsibilities: - Develop a robust e-commerce application for Android and iOS - Ensure the app supports transactions for both selling products and services Ideal Skills and Experience: - Proficient in Android and iOS development - Proven experience in creating commercial-grade apps - Experience in e-commerce apps is a significant plus - Familiarity with secure, efficient transaction methods - Excellent problem-solving skills and atte...

I am looking for a talented professional to develop a ...looking for a talented professional to develop a mobile application for both iOS and Android platforms. The primary function of this app would be AI-enhancement, particularly focusing on the Computer Vision feature. Ideal Experience and Skills: * Proficient in iOS and Android development * Strong background in AI, especially Computer Vision * Experience in integrating AI capabilities into mobile apps The app will also have an in-built feature to solve questions, further incorporating the AI function. Make sure that the AI is robust enough to provide accurate solutions. Please apply if you have a proven track record in developing AI-based mobile applications. Demonstration of a similar project in your portfolio will be a p...

I am in need of a skilled QA professional who can meticulously test mobile applications and websites, identifying bugs and ensuring they are addressed before the software goes live. It's key to have the most recent iPhone and a Samsung Galaxy, as the platforms need to be tested across these devices. Key Responsibilities: - Review mobile apps and websites - Detect and report bugs - Ensure issues are resolved - Communicate with developers effectively - Test across the latest iPhone and Samsung Galaxy What I'm Looking For: - Proven experience in QA testing - Proficiency in detecting and resolving functional bugs, performance issues, and user interface glitches - Excellent communication skills to report bugs and issues effectively - Ownership of the latest iPhone and Samsung...

I'm in need of a seasoned Flutter developer to help me with the setup and customization of a mobile...Setup the app for both Android and iOS platforms - Implement a new color scheme to enhance the app's aesthetic - Make necessary layout adjustments to improve user experience - Replace the current logo with a new one Ideal Skills & Experience: - Proficiency in Flutter with a proven track record of building and customizing apps for both Android and iOS - Strong design sense to ensure a seamless integration of the new color scheme - Experience with layout optimization for mobile apps - Previous logo design experience is a plus This project requires someone who can work efficiently and has a keen eye for detail to ensure that the modifications enhance the app'...

I'm in search of a C developer with strong math skills, particularly in electromagnetism. The primary objective of this contract is to enhance calculation optimization in line with efficient coding practices. Your expertise will help steer the physics of the underlying calculations for a more streamlined functionality. Key Tasks: * Calculation optimization focusing primarily on code efficiency * Commenting and providing a succinct documentation The project is expected to be wrapped up in two days. The whole source code will be provided by me, and note that there's no Git involved in this project - that is a separate endeavor. Consequently, proficiency in managing source code manually is essential. Electronic mathematics and cpu. Ideal Skills: * Proficient C pro...

I require development of a website and apps for iOS and Android platforms, with matching features and functionalities for a mobile data plan service. This project necessitates: - The creation of user accounts and profile management system. - Capabilities for subscribing to various mobile data plans - Seamless synchronization between website and mobile apps Ideal candidates should have prior experience in eCommerce site design and mobile app development, and be fluent in creating user-friendly interfaces. A grasp on data security measures for user account management and subscription systems is also essential. cellForRowAtIndexPath.

...pricing, customer ratings, promotions, and deals from various food delivery mobile apps operating within our city. The goal is to mine this data for actionable insights to inform our advertising, promotional strategies, and competitive benchmarking. 2. Project Scope The selected vendor will be responsible for developing and implementing a solution to: • Subscribe to and navigate through multiple food delivery mobile apps. • Collect data on menu items including descriptions, pricing, customer ratings, and associated promotions or deals. • Move systematically from one restaurant to another within each app, ensuring comprehensive data collection. • Extend the data collection across all significant food delivery apps available in the specified city....

I'm looking for a skilled UX/UI designer with experience in creating designs for websites, mobile sites, Android & iOS apps, and admin panels. The main objective of this project is to design interfaces for a car dealers service. **Key Aspects of the Project:** - **Platform:** The design needs to be compatible with the website, mobile site, and apps for both Android and iOS. - **Purpose:** The primary goal of the website, mobile site, and apps is to serve as a platform for car dealers, focusing on internal services for used car dealers. - **Specific Features:** The design should include features for vehicle inventory management, online booking for service appointments, and test drive scheduling. Ideal candidates for this project should have: - Proven ...