React native app builderpekerjaan

I need the frontend created for a Dropbox style app. There's a logo, no wireframes, so I need someone who has a good design eye as well. It's fine to look for open source/free templates online to use and code from (ie - ok to use Material UI, Bootstrap, or some other ready made theme). I'll provide the page by page details when we get started. Apart from responsive design, there are no other constraints. After the frontend is created I will hire either you or someone else to wire it up with the backend once the backend is complete. On that end it probably isn't too important whether you choose React, , HTML/CSS/JS, or some other framework as long as it's main stream enough to be built on later. Please add a sample project(s) so I can see your desig...

I need the frontend created for a Dropbox style app. There's a logo, no wireframes, so I need someone who has a good design eye as well. It's fine to look for open source/free templates online to use and code from (ie - ok to use Material UI, Bootstrap, or some other ready made theme). I'll provide the page by page details when we get started. Apart from responsive design, there are no other constraints. After the frontend is created I will hire either you or someone else to wire it up with the backend once the backend is complete. On that end it probably isn't too important whether you choose React, , HTML/CSS/JS, or some other framework as long as it's main stream enough to be built on later. Please add a sample project(s) so I can see your desi...

...command of both React development and UI/UX design. This role will focus on constructing a user-friendly website. Specifically, I am searching for a professional with demonstrated proficiency in: UI/UX Design: - Wireframing - Prototyping React Development: - Component-based development - State management - API integration Up-to-date knowledge and experienced applications of these principles will amplify your odds of winning the contract. This project demands the seamless blend of aesthetically pleasing design, a firm comprehension of React software engineering, and a commitment to user experience. The ideal candidate will be proficient in bringing inventive solutions to complex requirements and have a portfolio demonstrating their capacity to create user-cent...

I'm seeking to create a cross-platform application that employs a minimalist design approach. Attention to details and the ability to create a clean, clutter-free user interface is essential. The key feature we want to implement is Blu...essential. The key feature we want to implement is Bluetooth capabilities. Here is a quick rundown of the job expectations: * Develop a cross-platform application for iOS and Android platforms. * Apply a minimalist design philosophy to the app's aesthetics. * Integrate advanced Bluetooth capabilities. Ideal skills for this job: * Expertise in cross-platform app development, preferably with experience in Flutter or React Native. * Proven ability in minimalist UI/UX design. * Solid understanding and experience with Bluetoo...

Looking for someone exceptionally proficient in French, with native level speaking and writing skills. The task involves aiding me with a 10-minute assessment that combines both oral and written parts and is timed. The freelancer must be highly skilled at: - Written French: grammar, syntax, and composition. - Oral French: pronunciation, conversation, and fluency. The freelancer must be readily available and adept at working under time pressure. Bilingual individuals, with English as their second language, would be an added advantage for clearer communication.

I require a MERN developer to construct a web application. This application needs a successful functionality of an OTP (one-time-password) for its authentication process, the OTP should be delivered via email. Post authentication, users should be capable o...including their personal profile, contact details and various preferences. The application should also enable the administrator to share articles to users' profiles, send them notifications and distribute an email newsletter. Ideal Skills and Experience: - Proficient in MERN stack: MongoDB, , React, Node.js - Experience in implementing email-based OTP systems - Knowledge in user profile creation and editing - Excellent understanding of different notification methods including in-app and email newsletters would be...

As an ecommerce business owner, I am seeking an expert Woocommerce website builder for my upcoming project. The requirements are as follow: Domain and Hosting: * Since I didn't specify whether a domain and hosting have been purchased, I would appreciate your recommendations and/or advice regarding this matter. Application Requirements: * Although I skipped the question about what an applicant should provide, I'm expecting freelancers to include their previous relevant experience with Woocommerce websites in their proposal. * Share your past work, preferably previous ecommerce websites you've created using Woocommerce. * A detailed project proposal on how you plan to approach the project would be appreciated. Web Design: * No specific design or theme has been set ...

Turkish Recording Project We have a project, that needs Native Turkish speakers, we will give you the text, and you need to record 60 short sentences. you just need to open the platform link, to read our text and record it, it's a very easy job. 1. You will need to record in a quiet place without loud background noise. and without an echo. 2. Each person Price is 3$ for 60 short sentences record. Every sentences is 2 word. If you are interested please let me know sure. I will contact u. A Good Opportunity For New Freelancers For taking 5 Star Review after their completion of the project. Thanks :

As a react developer looking to bid on this project, you should be capable of delivering an integrated trading chart system within a strict time frame. Key Responsibilities: - Deliver a real-time data visualization trading system similar to reference chart page () within the given deadline. - Incorporate a variety of indicators and drawing tools for technical analysis. - Embed the referenced chart page within the created trading charts. Ideal Skills and Experience: - Proficient in React.js and charting libraries - Experience in creating interactive financial charts - Understanding of trading indicators and technical analysis. 50 indicators need to provide in chart analysis. Multiple indicators cam be implemented on single chart. Create trading

Need a Senior React.js developer with solid expertise on complex Charts. *** strictly NO Agencies *** Requirements: 5+ years solid experience building charts using React JS and open source libraries. Experience with complex Stock or Financial charts is MUST. Share URLs of good apps (LIVE only) you built. Responsibilities: - Design and Develop React JS Web application consisting of Charts & graphs. - Develop Histograms, Mountain charts, autoresize Candlestick chart size - optimize chart load to reduce refresh time; handle exceptions - quick response time, easy to use application is required Applicants should provide: - Evidence of past work, samples MUST

...need of a tech-savvy individual with specific experience in the React ecosystem. They should also be well-versed in both node and mysql, as these will be crucial elements of the project. In their application, successful freelancers are encouraged to detail their prior experiences, particularly with regards to React-based projects. Knowledge of Redux, , and would be a plus, though not mandatory. However, strong proficiency in node and mysql is non-negotiable. Overall, I'm looking for someone who can provide a smooth hosting experience for my website, ensuring optimal functionality and user experience. The more experience you have in this area, the better. Ideal skills for the job: - Proficiency in React - Knowledge of Node and MySQL - Experience...

As an ecommerce business owner, I am seeking an expert Woocommerce website builder for my upcoming project. The requirements are as follow: Domain and Hosting: * Since I didn't specify whether a domain and hosting have been purchased, I would appreciate your recommendations and/or advice regarding this matter. Application Requirements: * Although I skipped the question about what an applicant should provide, I'm expecting freelancers to include their previous relevant experience with Woocommerce websites in their proposal. * Share your past work, preferably previous ecommerce websites you've created using Woocommerce. * A detailed project proposal on how you plan to approach the project would be appreciated. Web Design: * No specific design or theme has been set ...

React native - Geolocation & Camera + Gallery feature

React native - Geolocation & Camera + Gallery feature

I require a talented professional who can accurately translate English business materials into Vietnamese. Key Responsibilities * Translate over 1000 words of business materials from English to Vietnamese, ensuring accuracy and context. * Maintain the confidentiality and professionalism of the business materials. Ideal Candidate * Native Vietnamese speaker with fluent English proficiency. * Experience in translating English business materials to Vietnamese. * Attention to detail, grammar, and syntax. * Able to meet deadline.

As someone embarking on a language proficiency certification, I'm seeking a skilled French writer and speaker, specifically a native speaker to help ace my upcoming test. Key Expectations: - Focus on writing: Assist me in framing compelling sentences in French, enhance my vocabulary, and refine the grammatical nuances. - Improve reading comprehension: Aid in understanding complex French texts, identifying key points, and interpreting context accurately. - Sharpen listening skills: Guide in understanding different accents, nuances, and improving the overall auditory comprehension of French. Ideal candidate: An academic professional or someone with a similar background who has experience in coaching for language proficiency tests, specifically French. A deep understanding o...

As a client, I'm seeking an experienced React Native freelance developer who can expediently assist in running a React Native project on my localhost. Fortunately, all needed software is already installed. I require: i require assistance by anydesk

I'm looking for an experienced and creative email marketer who can attract and engage small and medium-sized business owners. The main goal of this project is to promote a specific product/service. This is what I am looking for: - Someone fluent in English, ideally native English speaker. - Has experience in writing dynamic, enthusiastic, and engaging email marketing content. - Previous experience in targeting small/medium business owners. - Demonstrated knowledge of effective email marketing techniques to promote a product/service. The perfect freelancer for this job will be energetic, fully capable of capturing our youthful and enterprising brand, and adept at converting email opens and reads into profit-enhancing customer interactions. A background in successfully promoti...

I'm looking for a knowledgeable expert in Stripe integration who can guide us about the best practices for our React web application. We aim to handle the development ourselves, but require detailed guidance on critical features, including: - Payment processing - Subscription management - Refund handling We will solely be supporting Credit Card payments. The ideal freelancer for this project should have extensive experience with Stripe, as well as a deep understanding of React applications. Comfort with explaining technical concepts and best practices is essential too. With your professional guidance, we hope to streamline our integration process effectively.

I'm seeking a professional language tutor, preferably a native Portuguese speaker, for one-on-one online lessons. I'm a beginner and am particularly interested in honing my general conversation skills. Key Responsibilities: - Providing personalized Portuguese language lessons remotely, via Zoom or Skype. - Focusing on teaching general conversation, with an aim to enhance my confidence and fluency in speaking Portuguese. Ideal Candidate: - Native of Portugal - Proven experience in one-on-one tutoring. - Strong communication and interpersonal skills. - Patience and dedication to teaching beginners. Please include your teaching method and style in your proposal. Looking forward to starting my Portuguese language journey with you.

I'm looking for a proficient Shopify website builder to bring my design to life. The core features needed are: - Product Catalog: Comprehensive and user-friendly, housing all items of my product range. - Shopping Cart Functionality: Allows users to select multiple items for purchase. - Payment Gateway Integration: A secure gateway for users to confidently make payments. An essential requirement for my website's product catalog is the ability to filter and sort products. This will enhance user accessibility on the site, making the shopping experience more simplified and convenient. If you can deliver on these requirements and understand the need for a clean, effortless user experience, your skills are ideal for the job. Experience in building Shopify websites with tailo...

...scratch. The site should be built using Zustand, Typescript, React-query, Tailwind, and Axios. Key Features: - User registration and authentication functionality. Proficiency in handling user data securely is required. - Clean code and structure. - you will be given a list of apis that can be used to make the website full functional as expected - And NO CSS OR SCSS in the project There is no requirement for integration with any third-party services at this moment. The Project Timeline: This project should be completed within a month. Hence, I would prefer someone who can dedicate significant time and effort to this project. Ideal Skills: - Strong proficiency in NextJS and its core principles - Proficiency in Zustand, Typescript, React-query, and Axios - Knowledge ...

...interfaces. Backend Development: Expertise in server-side scripting languages such as Python, Node.js, or PHP, along with knowledge of databases like MySQL or MongoDB for managing product data and user accounts. E-commerce Platforms: Experience with e-commerce platforms like WooCommerce, Shopify, or Magento for setting up and managing online stores. Mobile App Development: Skills in mobile app development using frameworks like React Native or Flutter for building cross-platform applications compatible with iOS and Android devices. UI/UX Design: Understanding of user interface design principles and user experience optimization techniques to create intuitive and engaging shopping interfaces. Machine Learning: Knowledge of machine learning algorithms and te...

We are seeking a highly skilled and experienced Linkbuilder and Outreach Specialist to join our dynamic team. Qualifications: - At least 1 year of experience as a link builder. - English language proficiency of at least Intermediate (B1) level. - Ability to conduct business correspondence in English. - High productivity and responsibility. - Proficient in Google Spreadsheets and MS Excel at an advanced level (knowledge and ability to use formulas, filters, formatting). - Ability to quickly find required information independently. - Excellent knowledge of Ahrefs, SEMRush, and/or other web tools for backlink analysis (competitor analysis). - Ability to create specifications for content, as well as to check content for compliance with the specifications. Responsibilities: - Analysi...

We are seeking a highly skilled Full-Stack Developer with expertise in Node.js, React, and the MEAN stack (MongoDB, , Angular, and Node.js) to develop a comprehensive cybersecurity training and phishing simulation web application. This platform aims to enhance organizational cybersecurity awareness and preparedness by providing a wide range of features including user management, training content management, phishing simulation, and comprehensive reporting and analytics. Exmaple of Similar Platform for you to refer- 1)Knowbe4(Includes both phishing and training plaform)- 2) GoPhish( Open source Phishing Simulation coded in go ) - Core Features of the Platform: User Management:

Turkish Recording Project We have a project, that needs Native Turkish speakers, we will give you the text, and you need to record 60 short sentences. you just need to open the platform link, to read our text and record it, it's a very easy job. 1. You will need to record in a quiet place without loud background noise. and without an echo. 2. Each person Price is 3$ for 60 short sentences record. Every sentences is 2 word. If you are interested please let me know sure. I will contact u. A Good Opportunity For New Freelancers For taking 5 Star Review after their completion of the project. Thanks :

I'm urgently seeking a proficient front-end developer with a specific skill set. You must be highly adept in Codeigniter, Node JS, and React Js. Your primary responsibilities will include: - Designing a user-friendly interface that captures our brand's essence and increases user engagement. - Implementing responsive design to ensure optimal functionality and adaptability across various devices. Ideal freelancers for this project are those who can work efficiently, meet tight deadlines, and deliver high-quality results promptly. You should have substantial experience in full-stack development and demonstrate proficiency in Codeigniter, Node JS, and React Js. Experience in creating user-friendly interfaces and implementing responsive design is a must.

Hello. We have a small hiking company in Indonesia. We translated our website into many languages already, but we want a native person to proofread them. This is a 1 day job for a native person. We are hiring 1 person in each language, but you must be native. We have a very easy side-by-side editor so you can check things. You will log into our WPML wordpress. You can translate side-by-side in the translating editor. See the files attached for the links that need translated. Also, see a screen shot of the side-by-side editor which will make this job go very quickly. Pay is $75 max for 1 day of work. We will take the best price bid since we are on a budget. I will send private invites to each candidate that we chose. Please be sure to look over the files, and bid $...

As a budding entrepreneur, I'm seeking an experienced full stack developer for a personal development project. Your expertise in Angular (1.X to latest), Node, and React is crucial. You need to write Servies as well so not just frontend work Key Considerations: - Your primary focus will be Angular. Expert knowledge in this field is a must. - Though Angular proficiency is paramount, skills in Node, and React are also required. - Responsive design is a key feature of this project. - Please note, this is not a role for an agency. I will personally interview and hire on a task-based approach. Looking forward to working with individuals who are passionate about coding and can deliver high-quality results.

I am looking for native arabic speaker to work as a writer . the project is to write short stories in arabic that includes some beauty products for promotion .

We're looking for Australian people to record some audios in English. The recording will be done in groups of two people, where you will talk about 4 different topics which will be assigned by our team. The duration of each topic's discussion ...minutes. In total we will require 120 minutes of recorded audio. You need to get a partner yourself to record in SAME room with you. Each group needs 2 phone and one earphone. What will you receive: -$50 USD for each person so 100USD for each group - The possibility to work in future projects with us Requirements: -Be Australian native (please do not apply if you're not Australian, we need native's accent) - Two smartphones FOR TWO RECORDERS : one to download APP and one to receive phone calls -Earphones We&#...

I'm seeking a proficient WordPress developer with Elementor experience to build my life coaching site. This site is intended to be a platform to introduce my signature program and platform. Key Features Needed: Home Page: A welcoming page with an introduction, mission statement, and an overvie...must be skilled in Elementor and have experience in building professional websites, especially those related to life coaching or similar services. I will provide the text and design system. I will also give you some examples of what I like. You need to be creative to design the perfect website for me. I do not have any graphics, images, or icons. These will need to be provided by the site builder (you). This is not a quick fix job; it will take time, and you will need to have pa...

We're seeking a Shopify whiz to launch our next big product! Do you: Find hot-selling products for Shopify? Source top-notch suppliers? Craft ROI-crushing marketing plans? If so, you're our perfect match! I am planning to establish a new Shopify store that will principally sell physical products. The goal is to capture a specific geographic and demographic market segment. Tasks include: - Building an intuitive and captivating Shopify store from scratch. - Sourcing high-quality physical products. - Conducting market research to discover winning products fitting our demographic and geographic target. - Implementing effective sales-driving strategies and ROI-driven marketing tactics to elevate the store's profitability. Ideal skills for the job: - Proven experience in Sho...

I am seeking a dedicated freelancer highly experienced in both React and Django. I have created a small page. But its giving some error and can't fix it. So I need someone who can fix the issue and built something. There are two select box in react. We need to select data from both the box. It will fire some Django API. You have to get the data and display it in a plot. I make the plot using some random data. But I don't know how to call API and get data from there. You need to have idea about both React and Django.

I'm in need of a proficient full stack developer experienced in React Native and Node.js to complete a partially-finished project. Key functionalities involved include, but are not limited to, user authentication, real-time chat, and payment gateway integration. As a keen developer, you should be able to: * Review and understand existing code * Pick up where a previous developer left off * Efficiently debug and optimize the current code * Work diligently to implement remaining features Existing resources such as flowcharts, wireframes or mock-ups, and written requirements or specifications are available for your reference, ensuring a coherent understanding of the project. Your knowledge on following structured approach and past experience in similar domains will be a ...

I'm on the hunt for a talented frontend developer well-versed in HTML, CSS, JavaScript and react js who can take my vision and translate it into a well-designed, captivating web page. Key responsibilities: - Design visually appealing web pages that meet the company's brand guidelines and standards. Skills and Experience: - Proficiency in HTML, CSS, JavaScript, and react js - Excellent understanding of visual design principles - Familiarity with Bootstrap, which will be the primary design framework - Experience in building user interfaces and optimizing website performance The perfect candidate will have a knack for creating compelling, clean and responsive web designs using Bootstrap. They'll know how to utilize HTML, CSS and JavaScript to bring these des...

Estoy buscando un desarrollador capacitado y con experiencia para crear un sistema de gestión de relaciones con el cliente (CRM) con integración de software inmobiliario como servicio (SAAS). Busco a alguien que pueda desarrollar un diseño moderno y elegante. - Características esenciales: * Gestión de clientes: organi...aplicaciones móviles: brinde acceso a datos de CRM sobre la marcha a través de una aplicación móvil. Son imprescindibles habilidades y experiencia en desarrollo de CRM y diseño de UI/UX. Se valorará el conocimiento en SAAS inmobiliario y la integración de las plataformas mencionadas anteriormente. PARA SER EXACTOS igual en funciones a : Tecnologias a usar Mongo DB Node JS React...

I'm determined to build an e-commerce website and on the hunt for an exceptional developer with proficient expertise in JavaScript, React, HTML, and CSS. Here's what you'll need to be successful in this role: - Creation of a custom website from scratch. Pre-made templates aren't desired for this project. - Advanced knowledge and experience in JavaScript, React, HTML, and CSS to develop a versatile, user-friendly e-commerce site. - Experience in developing e-commerce websites will be a tremendous plus, as this will help understand the critical features required for an online store. If you believe you've got the skills and experience to turn this project into a success story, I am eager to hear from you.

I am in need of a skilled developer with experience in building forms for multiple applications. The forms are for my website, so expertise in web development is essential. - The types of forms to be built include registration forms, contact forms, and survey forms. - Demonstrable background in integrating form builders into websites will be ideal - Experience in constructing web forms for various functions is crucial. Please note, the actual website purpose was not disclosed. You must possess the ability to adapt to different website purposes, styles, and functionality. High creativity, innovativeness and user interface design skills will be a major advantage.

We need to create a WP admin panel in react to manage site settings. Strong WordPress, Gutenberg, WP-RestAPI, WP-Script, and React skill is required. If you are not familiar with Gutenberg, please don't apply so that we don't waste valuable time yours and mine. Developers from Pakistan are preferred as I had good experiences with them.

I'm in search of an expert skilled in leveraging WP Bakery Page Builder to add an extra button in our wordpress website header. It should also be mobile responsive and cross browser compatible. And must be done in a day focusing on the details. On the other hand we have a limited budget for this small task. So apply if you have experience and skills for a long term relationship but don't look at the budget now. Please start with the line "I am ready and available to do it for $10" before applying for the project. The project requires: - Strong knowledge in WP Bakery Page Builder - Previous design portfolio to get design inspiration - Creativity and innovation in crafting a purposeful website - Ability to propose and implement website functionalities Thi...

I am in need of native English writers who are versatile enough to craft engaging blog content on various topics. The ideal freelancer should have string research skills as our agency writes content for clients in various niches that you may not be familiar with. Your creativity and strong research skills are key as precise topics haven't been defined yet. The length of blog posts will vary, but many of our clients are looking for long-form content exceeding 1,000 words in length. AI content IS NOT ACCEPTABLE. All content will be put through an AI checker, and there will be no leeway for AI usage while writing the content. The rate of pay is $15 per 1,000 words and is not negotiable. However, there is ample work available to keep you busy. Please start your proposal with &...

I am in need of a proficient web developer to design and develop a local news website catered towards local residents in my area. I expect the site to be user-friendly, engaging, and, most importantly, a p...backend system for easier management of news articles, updates and posting of new daily articles. - Ensure that the website is optimized for local SEO Ideal skills and expertise: - Proven experience in web development - Strong portfolio of previously created news/informational websites - Excellent knowledge in local SEO optimization - Experience with HTML, CSS, PHP, JavaScript, CPanel, Website Builder, My initial goal here is to test launch a news website, with a good design and easy to manage. I'm open to any suggestions and innovative ideas on how we can make this proj...

I am looking for an experienced web developer with a strong background in HTML/CSS and JavaScript. Key tasks involve: - Front-end development - Creating responsive designs to ensure a seamless user experience across different devices - Ensuring cross-browser compatibility for our site Additionally, proficiency in using React is a must for this project. This position requires a keen eye for detail and the ability to work in a fast-paced environment. If you're an all-rounded professional with these skills, I’d love to have you on board.

...Flutter and I would like to refactor using BLoC & list view builder for easier readability. The todo list works already by itself. No need to connect to firebase or update the UI etc. Just refactor the code existing working code. Skills and Experience: - Strong proficiency in Flutter and mobile application development - Strong proficiency in BLoC state management - Experience in refactoring and optimizing code for improved performance - Familiarity with mobile app UI/UX design principles - Knowledge of task management features and best practices Project Requirements: - Analyze the existing codebase and identify areas for performance improvements - Implement optimizations to enhance the app's speed and responsiveness - Ensure the app remains stable and bug...

Voice recording for 2000 English quotes Each quote 30 words. Preferred: Native English speakers Please provide you sample voice of reading a quote when bidding.

...Nuestro objetivo es desarrollar una plataforma que sea intuitiva, moderna y que ofrezca características únicas para diferenciarse de los portales existentes como Vivanuncios, Inmuebles24 y Lamudi. Requisitos Esenciales: Experiencia comprobada en el desarrollo de sitios web inmobiliarios o plataformas similares. Fuerte conocimiento en tecnologías web como HTML, CSS, JavaScript, PHP y frameworks como React o Angular. Experiencia en la integración de API de mapas, sistemas de pago y otras herramientas de terceros. Comprensión profunda de SEO y optimización de sitios web para dispositivos móviles. Capacidad para implementar sistemas de seguridad robustos para proteger datos sensibles. Características Clave del Portal: Interfa...

Looking for a seasoned app developer to engineer a cross-platform mobile application for both IOS and Android systems. Key requirements include: - Cross-platform mobile application development (iOS and Android) - Integration of a reliable user registration/authentication feature - Efficient retrieval and storage of user profiles - Delivery option The ideal freelancer for this project should have proven experience in cross-platform mobile app development, handling user registration/authentication, and managing user profile data. Proficiency in Flutter, React Native, or Xamarin would be a plus. We're open to any tech stack recommendation that supports ease of maintenance and scalability for both Android and iOS. Show us that you understand user-centric de...

As an ecommerce business owner, I am seeking an expert Woocommerce website builder for my upcoming project. The requirements are as follow: Domain and Hosting: * Since I didn't specify whether a domain and hosting have been purchased, I would appreciate your recommendations and/or advice regarding this matter. Application Requirements: * Although I skipped the question about what an applicant should provide, I'm expecting freelancers to include their previous relevant experience with Woocommerce websites in their proposal. * Share your past work, preferably previous ecommerce websites you've created using Woocommerce. * A detailed project proposal on how you plan to approach the project would be appreciated. Web Design: * No specific design or theme has been set ...

We are seeking an experienced and passionate Arabic language tutor who can deliver engaging online classes to both children and adults based in France and the USA. The aim of these classes is to establish a firm foundation for beginners in the Arabic language. Here are the key details for the suitable freelancer: - Must have experience in teaching Arabic language online. - Should have excellent knowledge of Arabic for beginners; this includes the ability to explain the basics engagingly and with clarity. - The ability to adapt teaching methods to both children and adults - Use of effective online teaching tools and methodologies to ensure the understanding of students. - Familiarity with different dialects is a plus, but Modern Standard Arabic (MSA) will be the primary language used for...