Ionic angular mobile app tutorialdela

Potreboval bi Android/iOS aplikacijo. Temeljila bi na analizi uporabnikovih slik zajetih s selfie kamero in analizi parametrov na sliki. Algoritem za analizo slike imam že pripravljen v programu Matlab. Načrt aplikacije z wireframe-om lahko v celoti pripravim sam, tako, da bi bila naloga programerja prepis vsega v programsko kodo.

I'm seeking a skilled developer with expertise in .NET and Angular to take part in my ongoing web development projects. The main goal of the project is to enhance an existing application. Requirements: - Proficiency in .NET for backend development - Strong experience with Angular for frontend development - Excellent understanding of SQL Server and MongoDB databases - Previous work with DevExpress is essential Your responsibilities will include: - Developing APIs using .NET for enhancing the application - Integrating Angular for improving the frontend - Ensuring seamless operation with SQL Server and potentially MongoDB Ideal candidates should have a strong understanding of web development and be able to contribute effectively to enhancing the current state o...

I'm seeking an expert in Android development, specifically experienced with maintaining and troubleshooting Android 4.4 (KitKat) applications. The application requires username and password login functionality. Ideal Skills and Experience: - Extensive Android Development - Detailed knowledge of Android 4.4 (KitKat) - Experience in implementing login functionality Please place a bid if you have the necessary skills and experiences. Provide evidence of previous Android 4.4 application work, if available.

I'm looking for a skilled freelancer who can help in optimizing my website for both desktop and mobile, implementing SEO strategies to increase traffic, design posts and managing social media marketing campaigns on Facebook, Instagram, Snapchat, TikTok, and WhatsApp. Key Responsibilities: - Ensure the website is mobile-friendly and optimized for desktop, enhancing user experience across all platforms. - Implement SEO strategies to increase website traffic and improve search engine ranking. - Develop design posts and execute social media marketing campaigns on Facebook, Instagram, Snapchat, TikTok, and WhatsApp. Website Optimization: Ensure full mobile responsiveness and SEO optimization for enhanced user experience and search engine visibility. Social Media Mar...

YOUR BID PRICE IS FINAL; NO LATER CHANGE IS ALLOWED. READ CAREFULLY BEFORE YOU BID. See ATTACHMENTS. Cannot share Code before you accept. I have a Journal App built in PHP/JavaScript/Laravel which allows to enter Journal entries, country, some photos and one video of limited size, different costs etc (see ). The job is to implement the feature of Travel Route Map Creation using Leaflet and OpenStreetMap (both free, opensource). There is a tutorial here Users will be able to search a place in map, create lines of different colors from one place to another, add/tie blog posts, links and pictures with the map, dates, notes and then only map creator can download the map as Image/PDF

I have an app that I bought on a website. I would like to get it working and fit the resquirements I have already designed.

I'm searching for a proficient developer who can create app like Too good to go UI & UX

I'm in need of expertise in improving the speed of my R Shiny data visualization app which focuses on presenting numerical data to clients. Here's what I'm specifically looking for: - Increasing the speed and efficiency of the data loading process, which currently is our biggest bottleneck. - Familiarity with handling and tuning numerical data processing in R Shiny is a must. - Understanding of how data loading impacts the overall performance of R Shiny apps and how to effectively improve it. - Not only should your changes maintain the integrity of our current data presentation infrastructure, but they should also enhance the overall user experience by providing quicker access to insights. Ideal freelancers will have extensive experience in working with R Shiny ...

I need a flutter developer to assist with a mobile application development project. The primary goal of this application is device integration. Unfortunately, the specific device or technology you'll be integrating with the app was not included in this project brief. Here's what I'm looking for: - Proficient in graphs in applications - Experience in developing mobile applications using Flutter - Proficiency in Flutter and Dart programming languages - Strong understanding of device integration and connecting hardware to mobile applications Please get in touch with me to discuss the project further. Your expertise in this area will be crucial in the successful completion of this project.

Need css expert to make a website mobile optimized, i have around 7 pages, i can't give access to website, you have to inspect code and provide me css for mobile view alone, i'll give you reference website of the mobile view, budget 1000 INR and should be done tonight.

...experienced React Native developer to build an e-commerce app for both iOS and Android platforms. Key Requirements and Features: - Creation of an E-commerce functionality. Expertise in implementing shopping carts, product categories, user profiles, and other related features is a must. - Ideally, the app will be optimized for both iOS and Android. You should have a portfolio of cross-platform mobile apps. - Multi-language support is currently undecided. However, having prior experience in implementing multiple languages in mobile apps will be a plus point. Skills and Experience: - Must have a robust understanding of React Native. - Experience in building and deploying mobile apps for both iOS and Android. - Good knowledge of E-commerce mobile...

I need a simple, efficient leaderboard app that can be displayed on a TV via a Raspberry Pi. The app should allow users to add/edit scores from their mobile devices. I will also need the app to function without an internet connection, using WiFi Direct with no need for Bluetooth. Key Requirements: - Development for both iOS and Android platforms - Real-time score updates - Player profile management Ideal Skills: - Proficiency in mobile app development for iOS and Android - Experience with Raspberry Pi integration and WiFi Direct - Prior experience with real-time data handling - Strong understanding of offline functionality in mobile apps

I require an Angular developer for a medium complexity web development project. Features and functionalities include multiple integrations and more advanced functions which require strong skills in problem-solving, detail-orientation and experience with diverse web integration. While I'm uncertain of which Angular version would be ideal, I am open to suggestions from experienced developers. Therefore, a sound understanding of AngularJS (1.X) and Angular 2+ is expected. • Expertise Required - Angular development - Familiarity with AngularJS (1.X) and Angular 2+ - Handling multiple integrations - Building advanced web functionalities - Problem-solving skills Please consider these requirements before making a bid. In your proposal, identif...

I am in need of a skilled designer who can create both static and animated mockups for laptops and mobile devices. The target platforms for these mockups are iOS and Windows. Key Requirements: - Creation of static and animated mockups - Proficiency in designing for iOS, Mac and Windows platforms - Demonstrable experience in user interface design - Ability to showcase device interaction effectively Please let me know if you have experience in creating such mockups and your approach to showcasing user interface design and device interaction. Your portfolio should clearly demonstrate your past work in these areas.

I'm in need of a talented UX designer to help me bring my product idea to life. It's an early stage concept for a mobile app focused on enabling communication. The demo is to showcase one use case for a new product that helps large scale land owners use satellite data to generate fresh insight about soil moisture levels in order to allocate water resources more efficiently. Key Responsibilities: > wireframe the screens > source photos & icons & digital assets required to make a prototype > create a clean visual look & feel > create a clickable Figma prototype of the use case The level of interactivity I'm looking for is basic - simply click through static screens. Ideal Skills: - Proven experience in UX design - Prior work on ...

I'm in search of a skilled and experienced web designer who specializes in blog website creation. I intend to utilize this platform primarily for sharing resources and tutorials. Key Requirements: - Develop a blog-type website - Professionally designed layout - User-friendly interface Additional Functionality: - Add functionality for user registration and login - Integrate a subscription list feature Ideal candidates would possess high proficiency in creating user-engaging web designs and have a keen understanding of incorporating specified features. Knowledge and experience in website usability and functionality are vital. The main goal is to foster a smooth user experience and promote continuous interactions.

...printer receipts within our existing food delivery application. The application is developed using Ionic 5 and integrates with a Bluetooth thermal printer that now supports Greek uppercase characters. Objectives: Modify Existing Script: The current system includes a script that transliterates Greek characters into English due to the previous printer's limitations in supporting Greek characters. This script needs to be modified or replaced to enable the printing of Greek uppercase characters directly. Receipt Layout Change: Update and optimize the receipt layout to accommodate Greek characters and improve overall aesthetics and functionality. Technical Requirements: Proficient in Ionic 5 and Angular. Experience with Bluetooth thermal printers and charact...

I'm in need of an experienced developer who can create a mobile app for iOS. My main goal is to have a reliable platform that delivers push notifications. Key Requirements: - The app should be developed exclusively for iOS, targeting Apple users. - It should incorporate a robust push notification system, ensuring that users receive timely updates and notifications. - High-quality coding and user-friendly design are essential for this project. Ideal Skills: - Proficiency in iOS app development - Extensive experience with push notification implementation - Strong understanding of user experience and user interface design I'm looking for a professional who can deliver a high-quality app that meets my specifications. Please include your relevan...

I am seeking a skilled mobile app developer for creating a marketplace application through which users can buy and sell digital products. Key Features: - The application should cater to both Android and iOS platforms. - User registration and login facilities must be integrated for maintaining user profiles, tracking purchases, and enabling secure transactions. - Support for selling digital products specifically photos and videos. They should be appropriately categorized for easy browsing. Payment Integration: - The ability to handle transactions via credit card and PayPal is mandatory. Ideal Skills and Experience: - Previous experience in developing e-commerce mobile apps is required. - Proficiency in both iOS and Android apps development. - Expertise in integr...

The Website operates on a lead generation model that facilitates connections between customers (homeowners or property managers) and service providers (tradespeople, contractors, or professionals) in the home improvement and renovation industry. Here's a detailed explanation of how the lead generation model works for both customers and service providers: For Customers (Homeowners or Property Managers): 1. Posting a Project: 2. Customers start by posting their home improvement or renovation project on the platform. They provide detailed information about the project, including the type of work needed, project scope, budget, timeline, and any specific requirements or preferences. 3. Project Review: 4. Admin reviews the project posting to ensure it meets their guidelines an...

I'm in need of a unique and innovative logo for a mobile app. The logo should be abstract, avoiding typical, literal representations of AI and leaning more towards a modern, artistic expression. Key Requirements: - The logo should highly emphasize the concept of AI while being abstract - The design should be contemporary and visually appealing, enhancing the app's overall image - The color scheme should be predominantly 'heliotrope' and color code C0FF72, both the colors are used in the attachment, which is a vibrant yet sophisticated color. Ideal Skills: - Proficiency in logo design - Strong conceptual and abstract thinking - Experience in creating modern and artistic designs - Good understanding of color psychology and branding. Please ...

I'm seeking an experienced app developer who can create a telemedicine app for both iOS and Android platforms. The app needs to include the following features: - Video consultations: To enable patients to have video calls with healthcare providers. - Prescription management: To enable patients to easily view, manage, and refill their medication. - Appointment scheduling: To allow patients to book, reschedule, or cancel appointments with healthcare providers. Additionally, the app needs to integrate with: - Electronic Health Records (EHR) system: To enable seamless information flow between the app and EHR system. - Payment gateway: To provide patients with an easy method to make payments for consultations or prescriptions. - Pharmacy database: To e...

I am in search of a proficient developer having in-depth knowledge of Java, Angular, React, and AWS. Your expertise will be utilized for developing a robust project from scratch. Key Responsibilities: - Write clean, high-quality, high-performance, maintainable code - Develop and support software including applications, database integration, interfaces, and new functionality enhancements - Maintain and improve the performance of existing software Key Skills and Experience: - Extensive experience with Java, Angular, React programming - Knowledge of Spring Boot framework - Familiarity with deploying projects on AWS - Strong debugging and problem-solving skills This is a demanding yet rewarding project, and your dedication will be highly valued. Looking forward to working w...

I'm seeking assistance for Facebook auth integration on a mobile app running on both iOS and Android platforms. I have been facing issues with authorization not working and need someone to guide me through this via a call to troubleshoot the problem. The ideal freelancer for this task should have: 1) Availability for a scheduled call today. 2) Strong experience with Facebook API and mobile app integrations. 3) Proven track record of troubleshooting and resolving integration issues. 4) Excellent communication skills, with fluency in English. Project Duration: The initial consultation call is expected to take 1-2 hours, with potential follow-up depending on the complexity of the issues encountered. Also, I request prospects to share their rates and avai...

I'm an advanced Wix mobile app designer seeking assistance in further developing my skills. I'm particularly interested in a developer who can: - Work with me on a project and teach me simultaneously. I'm eager to learn while we create. - Focus on app layout design during our learning sessions. As an advanced layout designer, I'm looking to diversify and enhance my expertise in this area. The perfect candidate for this project will be a proficient Wix mobile app developer with a knack for teaching, prides themselves on their layout design skills, and has a patient and friendly approach. The ability to communicate complex ideas simply is vital.

I need a detailed tutorial that shows how to automatically link Jira tickets to Confluence tags and update Jira tickets when Confluence tags are added. Key Points: - The automation should be based on ticket keywords. I want the process to run smoothly without manual intervention. - The tutorial should focus on including the ticket title in the Confluence tags. This will help in maintaining consistency and clarity across both platforms. Ideal skills and experience for this job: - Proficiency in Jira and Confluence: The freelancer should have a deep understanding of both platforms to effectively demonstrate the automation process. - Automation Expertise: Experience in automating workflows between different tools would be a big plus, especially in the context of project manage...

We are looking for a professional with excellent skills in Lua programming to refine our existing code. This role entails making edits to variables A, B, and C in our Lua codebase, and we expect these changes to bring about an exquisite functionality. Post-editing, we'd need you to create a step-by-step learning draft (PDF) on how you managed the edits along with fundamental tools used. The tutorial should target learners at an intermediate level, ideally incorporating some advanced concepts to provide a more rounded understanding of the editing process. You should have: - Strong proficiency in Lua programming - Ability to explain complex concepts in an understandable way. Your bid should reflect your understanding of these requirements. We're excited to see your propo...

I'm looking for an Android app developer who can create a finance loan application with an integrated web backend. The app should be designed using the latest technologies and should have top-notch security features. Key Features of the Mobile App: - User registration and login system - Loan application form - Loan calculator - Loans being issued based on the value of pledged properties - A separate login for property/stock verification agents - Third-party agents should be able to apply for loans on behalf of users - A dedicated admin backend for user management and admin-related actions Key Features of the Web Backend: - Management of user processes including registration, login, and profile updates - Loan application management - Property/Stock verific...

I'm seeking a talented game developer to create a mobile idle RPG game with a focus on character customization, multiplayer mode, and a quest system. Key Requirements: - Development for mobile platform: The game should be designed and optimized for mobile devices to ensure a seamless gaming experience. - Genre: The game should fall under the idle RPG genre, offering engaging gameplay mechanics that are typical of this genre. - Character Customization: Players should be able to customize their in-game characters, allowing them to personalize their experience and create unique avatars. - Multiplayer Mode: A key feature of this game is the multiplayer mode. The multiplayer experience should be immersive and engaging, encouraging players to interact and compete with ...

I'm in need of a skilled Frontend Engineer, proficient in JavaScript, HTML/CSS, and experienced with the Angular framework. The primary responsibilities will be: - Refactoring existing code to optimize performance - Building new, innovative features from the ground up - Troubleshooting and fixing bugs to ensure optimal functionality Ideally the candidate will have a robust portfolio demonstrating their expertise in these areas. Efficiency, attention to detail, and a problem-solving mindset are essential for success in this role.

I'm seeking a highly knowledgeable specialist in mobile robotics simulation using the ROS2 Noetic operating system, turtlebot3 and gazebo. The ideal candidate should possess a thorough understanding of Python as it's crucial for this role as well as deep reinforcement learning knowledge. Key requirements include: - Proven experience in robotics simulation, specifically with a focus on mobile robotics. - Exceptional proficiency with ROS Noetic is essential. - In-depth knowledge of Python. - Ability to work independently and troubleshoot challenging simulation scenarios. The task involves implementing and testing RL algorithms in a short time, so only talk to me if you’re fully available in the next couple of days

I'm seeking a professional who can help me improve the user experience of my mobile app. Key aspects of the project: - Objective: The primary objective is to enhance the user experience, thereby increasing user engagement and satisfaction. - Target Audience: The mobile app caters specifically to young adults in the age group of 18-34 years. It's crucial that the improvements are aligned with their preferences and habits. Ideal skills and experience: - Proven experience in User Experience (UX) design for mobile apps, preferably with a focus on young adult audiences. - A deep understanding of mobile app design trends and best practices. - Excellent communication and collaboration skills to ensure smooth coordination throughout the...

...both Flutter and React Native platforms, to assist in the creation of multiple mobile cloud-native applications. Most likely, these applications will lean towards the e-commerce sector. Having no distinct design ideas as yet - I will need full assistance in app design, so your input will be crucial. Key Competencies: - Expertise in Flutter and React Native for app development - Strong skills in cloud-native applications - Ability to develop compelling e-commerce applications - Proficient in helping define and refine app design guidelines Your creative ability and technical excellence are vital for this project. The successful bid will demonstrate both these attributes, coupled with impressive experience in app development and design. Please be p...

We are seeking a talented UI/UX designer to create an engaging and efficient design for a scanning mobile app. The primary function of the app is to capture serial numbers using a smartphone camera. The ideal candidate will have experience in designing mobile applications and expertise in UX/UI design principles and best practices. Key Features: TOTAL 5 PAGES including Login. SCANNING IS RELATED TO WATER THEME & DIGITAL BARCODING ICONS FOR DIGITAL SCANNER, Camera Icon, TASKS, Logout and Logo IS TEAL COLOR ADD ANALOG DIGITAL (7 DIGITS) IN CIRCLE ICON ON LOGIN PAGE PREFER LOGIN MORE WHITE BACKGROUND.. PROBABLY BIG WATER DROP FROM TAP OR SOMETHING SIMILAE. Fast scanning: The app should provide users with fast scanning capabilities, allowing them to...

I'm looking for a skilled mobile app developer to create a robust and user-friendly app for my delivery startup. The app should be compatible with both iOS and Android platforms. Key Features: - Real-Time Tracking: The primary feature of the app should be real-time tracking of deliveries and location of nearby fashion retailers . It's essential for customers to be able to monitor their order's progress from the moment it's picked up to the time it reaches its destination. - Payment Integration: The app should integrate PayPal as the preferred payment gateway. Customers should be able to make quick and secure payments through the app. Ideal Skills: - Experience in developing mobile apps for both iOS and Android -...

I need a proficient developer with substantial experience in , TailwindCSS, and TypeScript to address and repair specific aspects of my project. The critical areas that need improvement are: - Styling inconsistencies: There are certain style discrepancies that need to be addressed. Due to the user skipping the details, the freelancer will need to identify the inconsistencies and make the necessary adjustments. please check this the chart component should show one time not infinite loop need to finish in a couple of hours Please write the proposal with "animation"

I am seeking an experienced game designer to conceptualize and create a city building simulation game for mobile platforms (iOS and Android). Key responsibilities: - Conceptualize and develop an immersive city-building simulation game. - Prioritize a seamless user experience on both iOS and Android. Ideal candidate should have: - Extensive experience in simulation game design. - Strong knowledge of mobile game development. - Proven track record in city-building or related simulation games. - Excellent understanding of game mechanics. This project requires someone who can both design and develop a simulation game, bringing the theme of city building to life for players. Please provide examples of previous work related to simulation game design.

I'm in need of an experienced game designer to create a strategy game specifically for mobile devices. The game should be engaging and immersive, with a focus on local multiplayer features. Key requirements: - Experience in designing strategy games: I'm looking for someone with a strong portfolio in creating strategy games, preferably for mobile platforms. - Proficiency in local multiplayer integration: The game needs to support local multiplayer, allowing users to play against each other on the same device. - Understanding of mobile game design principles: The ideal candidate should be well-versed in the unique challenges and opportunities that come with designing for mobile devices. Please provide examples of previous projects that showcase your ex...

I am in search of a proficient Flutter developer to create a sleek, minimalist mobile app that transcribes speech to text. This sophisticated app should be able to transcribe word-for-word in real-time, with the added feature of allowing users to manually alter listening duration and intervals between words. While I am uncertain about multi-language support at this stage, I am very clear about cross-platform compatibility. This app should be constructed to operate seamlessly on both Android and iOS platforms. Key Requirements: - Expertise in Flutter development - Proven record in developing cross-platform mobile applications (Android & iOS) - A knack for creating minimalist and user-friendly interfaces - Experience in, or knowledge of real-time ...

This is not a big project, do not bid higher you will be ignored.

I require a skilled frontend designer to work on my mobile application and dashboard backend. Key Tasks: - Designing a user-friendly and visually appealing interface for both the mobile app and dashboard backend - Wireframing to ensure the design aligns with the project's objectives - Implementing responsive design to ensure the application works well on all devices The target audience for this application is broad, including general users, business professionals, and students. Therefore, the user interface needs to be intuitive and universally appealing. The overall style and theme for the design should be modern. Prior experience working on similar projects and a strong portfolio showcasing your UI/UX design skills will be highly valued. Ideal Skills and E...

...garantice transacciones seguras y fluidas entre usuarios. Colaborar estrechamente con el equipo de diseño para garantizar una experiencia de usuario excepcional. Realizar pruebas rigurosas para garantizar la funcionalidad y la seguridad del sitio web. Requisitos: Experiencia demostrada en el desarrollo web, preferiblemente con tecnologías como HTML, CSS, JavaScript y frameworks como React o Angular. Conocimiento profundo de sistemas de autenticación de usuarios y gestión de sesiones. Experiencia en integración de pasarelas de pago 2P, internacionales como PayPal, Webpay, Onepay, o similares. Capacidad para trabajar de forma independiente y en equipo, con una fuerte ética de trabajo y atención al detalle. Excelentes habilid...

I'm looking to develop a mobile application that targets young adults (18-35 years) with the main goal of generating more sales and leads for my product, @misterius:@☛ ???? ⚚?: Virtex By saya anak baik. Key Requirements: - The application should be user-friendly and engaging to attract the target audience. - It must be designed and optimized specifically for mobile devices. Ideal Freelancer: - Proven experience in developing mobile apps, especially for e-commerce or sales purposes. - Good understanding of UX/UI principles with a focus on young adults. - Strong communication skills to understand the product and target audience.

...for a skilled mobile app developer proficient in iOS, Android, and Windows to create a comprehensive fleet management system. This application should include: - Real-time GPS tracking to monitor and coordinate the movement of the fleet. - A vehicle maintenance tracking feature to ensure timely maintenance of the fleet vehicles. - Driver performance monitoring for managing and improving driver productivity. - Option to create pickup tickets and facilitate communication via text messages within the app interface. - An admin dashboard for overseeing all fleet operations. The dashboard needs basic customization incorporating our brand color and logo. - A payment feature for financial transactions. An ideal freelancer for this project should have previous experience...

I'm in search of a creative graphic designer to craft a modern and sleek van wrap design for my mobile detailing company. I would like the background to me black or gun metal grey. I would like like embossed stars of my logo in the background similar to the inspiration photo attached. You could also do a galaxy background similar to the bottle that I have attached. I'm just trying to come up with a concept. The design doesn't have to be perfect. Key Requirements: - Primary Color Scheme: The design should predominantly feature black/dark gray as the primary color. - Incorporating Existing Branding: I have a logo and existing branding that will need to be seamlessly incorporated into the design. Ideal Skills & Experience: - Proven track record in graphic desig...

I have an Angular project hosted on , and its MySQL database on Cloudways. I'm looking for a professional to transfer both the frontend and backend to DigitalOcean. I need help in setting up the server and transferring the database as well. Key Project Requirements: - Transfer existing Angular project from to DigitalOcean - Move existing MySQL database hosted on Cloudways to DigitalOcean - Set up the server on DigitalOcean for hosting the Angular project - Transfer and configure the MySQL database on DigitalOcean - Ensure the migration process is smooth and without downtime - No manual deployment used, so expertise in this area is crucial Ideal Freelancer: - Proficient in Angular for frontend transfer - Experienced with setup and configuration of serve...

...markers and interactive elements. Backend and Security: Set up a secure server environment with robust authentication and role-based access control. Implement secure payment processing for commercial users. Responsive Design: Ensure the application is fully responsive and functional across all devices and platforms. Skills Required: Proficiency in HTML, CSS, JavaScript, and frameworks like React or Angular. Experience with backend technologies such as Node.js, Python (Django or Flask), or PHP. Strong knowledge of Google Maps API and experience with payment gateway integration like Stripe or PayPal. Proven track record of developing secure and scalable web applications. Deliverables: Complete source code of all work done. Documentation of the system architecture and code. Deploy...

I am looking for an experienced 2D animator to create a short, up to one-minute, animation. This will guide users on how to conduct an inspection. ...not exceed one minute. - Inspection Guide: The animation will be used as a guide on how to conduct an inspection. The main deliverable is a high-quality animation that is engaging and informational. The animation will be used to demonstrate a step-by-step process. Ideal skills and experience: - Proficient in 2D animation and creating engaging content - Experience in creating instructional or tutorial videos - Strong understanding of visual storytelling and ability to simplify complex concepts. The ideal candidate should be able to understand and visualize the inspection process effectively, creating an engaging and informative sh...

I need a talented UX designer who will efficiently create a cab booking system flow which includes payment system with images - Credit/Debit Card - Digital Wallets You should have experience in UX for secure payment systems and understand mobile interfaces. Rigorous payment security experience is a must. Your success on this project is defined by how effectively you can create a seamless and secure payment workflow.