Template web develop wordpress jobs

...Full-stack Developer to build a social network website from scratch. This site will serve as a communication platform and online store focused on community interaction and user engagement. Key Responsibilities: - Design and develop an interactive and user-friendly front end. - Implement a robust, secure, and efficient back end. - Integration of data storage solutions and ensuring high performance. Ideal freelancer's skills and expertise: - Extensive experience in full-stack development, including both front-end and back-end tech stacks. - Proficient understanding of web markup, including HTML5, CSS3, and JavaScript. - Strong knowledge of server-side MVC frameworks. - Experience in user authentication and authorization between multiple systems or servers. - Unders...

I'm in need of a skilled developer proficient in both Binance Smart Chain (BNB) and Ethereum, as the project involves creating a decentralized application on the Binance Smart Chain platform. Key Deliverables: - Develop a user-friendly decentralized application on the Binance Smart Chain platform - Implement necessary smart contracts for the application - Ensure seamless integration and functionality of the application Ideal Skills: - Proficient in Binance Smart Chain (BNB) and Ethereum - Hands-on experience in developing decentralized applications - Strong knowledge of smart contracts - Ability to ensure high-quality integration and functionality - Prior experience in developing for the Binance Smart Chain platform would be a plus Your expertise in BNB and Ethereum will be ...

...system * Local Database * Use Azure Storage or Microsoft SQL Server as local database * Store indexed data and search results in local database * File System * Use Windows File System or macOS File System * Index local files and folders * Search * Search local database and file system for relevant results * Display search results in user interface * User Interface * Develop user interface for Quivr Agent * Include search bar, search results, and settings Cloud Component: Calendar Service * Calendar Integration * Integrate with Microsoft Graph API for calendar data * Retrieve calendar events and appointments * Event Processing * Process calendar events and appointments * Extract relevant information (e.g., attendees, location, time) ...

...review erotic pictures, this opportunity is not suitable for you. We still have below main jobs pending. You must be an expert on building website with prestashop and deeply know SEO. 1. Installing caching system as below and configure them to get my website speed faster. Memcached via PHP::Memcache Memcached via PHP::Memcached They can be found at advanced parameters/performance/caching 2. Develop a pricing module to set the retail price. There is a installed module to import the product xml to my prestashop store. From those xml, there are two prices, cost price and retail price. The installed module has its own price rule but I want a individual module to override the pricing part of that module. The main requirement should be like this. • A friendly UI to set variables...

Hi, For this project, you need to develop from scratch using React.js, based on a sample design. Node.js will be utilized for the backend, with a project duration of 1.5 months. You won't be building everything from the ground up, but rather integrating existing modules. If you have no prior experience with chatbots or are unfamiliar with RAG (Retrieval-Augmented Generation), please do not bid! Please read the document below!

...professional and polished video intro & outro for my brand. Company Name: The Craps Coach I'm in need of a talented video editor who can create a dynamic, modern intro and outro video to be used on my you tube channels videos. Video should be 3-6 seconds in length. The video is to use the company name and logo. The intro video should include a template to be used in Premier Pro and have the ability to edit the video title on the Intro only. Template also have the words subscribe and link to you tube channel. I would like the video to include sound effects, specifically SFX. Color scheme: same as on website. Website: Key Elements: - Style: Modern - Emotion: Excitement - Color Scheme: same as on website If you do not know what the game of craps is, pleas...

I need someone to help me with a data entry project. The task involves entering handwritten text into a digital format. You should be able to accurately read and transcribe the handwritten document...able to accurately read and transcribe the handwritten documents into text. Skills needed: - Proficiency in English language - Excellent typing skills - Attention to detail - Experience with text data entry - Familiarity with handling handwritten documents Expectations: - Accurate transcription of the handwritten documents into a digital format - Basic formatting is sufficient, no specific template required - Maintain confidentiality of the content of the documents Please bid if you have experience in similar projects and are confident in your ability to ensure accurate and timely d...

We have developed an Online Cloud/Browser based Video Editing Software - We need to develop an IoS and Android App for the app counterpart for the video editing software ecosystem. I'm looking for a skilled React-Native developer who can create a straightforward video editing application primarily aimed at casual users. We have exact identical capabilities for the IoS and Android App using React-Native. Just have a look at prior raising any requests for the project. 1- Having basic toolap menus (Settings, Media, Subtitles only) 2- Having a basic timeline. 3- Having a Video Player 4- Reading Project Manifest with API calls. Requirements: - You should be proficient in React-Native and experienced in developing video editing software. - Knowledge of iOS development and

We are seeking a skilled freelancer to develop an OIDC (OpenID Connect) server capable of delegating authentication to a CAS (Central Authentication Service) server. The OIDC implementation will be based on IdentityServer4. The primary objective is to establish a secure and efficient authentication mechanism within our system, leveraging the capabilities of both OIDC and CAS protocols. The ideal candidate should possess expertise in IdentityServer4 and have experience in integrating it with external authentication providers such as CAS. Additionally, familiarity with authentication protocols and best practices in web security is highly desirable.

I'm currently at the concept stage with my business idea in the technology industry. I'm seeking a skilled and experienced entrepreneur who can help me find an idea, develop and execute the idea. Key Responsibilities: - Develop a comprehensive business strategy based on the initial concept. - Assist in market research to validate the idea and determine its potential success in the technology industry. - Provide guidance on product design and potential market positioning. Ideal Skills and Experience: - Proven track record as a tech entrepreneur, preferably with experience in the development of innovative products. - Strong background in business strategy development and execution. - Excellent market research skills, particularly in the technology sector. I'm ...

As an entrepreneur seeking to boost productivity, I'm in need of a skilled mobile/web app developer who can help me bring my productivity app idea to life. The ideal candidate should have a strong background in multi-platform app development and a good understanding of productivity enhancements. Key requirements: - Develop a comprehensive, user-friendly productivity app that can run on iOS, Android, and Web platforms. - The app should be intuitive and easy to use, with a focus on boosting personal and professional productivity. - Timely delivery is important for this project, as I'm eager to introduce the app to the market as soon as possible. Previous experience in productivity app development or similar projects will be highly regarded. The successful app...

I'm looking for an experienced HTML developer to help me design, code, and develop the front-end of my portfolio website. This project will involve: - Crafting a visually appealing website design that aligns with my professional needs and showcases my work effectively. - Converting this design into clean, efficient HTML code. - Developing the front-end of the website to ensure a seamless user experience and optimal performance. The main goal of this website is to serve as a showcase for my professional portfolio. Therefore, the ideal candidate for this project should have a keen eye for design and a strong understanding of user experience principles. Key skills and experience required: - Proven track record in website design, HTML coding, and front-end development. - A portf...

I'm seeking a talented designer who can assist with a variety of design tasks, primarily centered around creating email newsletters and social media graphics . Key Responsibilities : - Design and develop email newsletter - Create engaging and on-brand graphics for social media, specifically for Get Response platform. Ideally, you should have: - Proficiency in graphic design and UX/UI principles, with a strong portfolio to demonstrate your skills. - Experience in creating effective email marketing campaigns and newsletters, particularly with GetResponse. - An understanding of how to create visual content that aligns with the purpose of the website and social media platforms. - Excellent communication skills to understand and implement my vision effectively. - making arou...

I'm in need of a proficient coder who specializes in regular expressions (regex). The goal is to extract specific data from a log file. Here are the task details: - Develop a regex expression to parse a log file - Specifically, I need to retrieve software name, version and install date Ideal Skills: - Strong experience with regex expressions - Understanding of log file structures - Attention to detail In your proposal, please include examples of previous similar projects.

...underweight, ideal weight, overweight, obese. 2. Utilise the wrist circumference to determine the appropriate watch size. The ideal candidate able to undertake this task should have proficient skills in Shopify application development and a clear understanding of BMI calculations. Any previous experience with crafting calculators for eCommerce would be considered a plus. Key Requirements: - Develop a height and BMI health status input system - Formulate algorithm for estimating weight and hand wrist circumference - Use the Monnerot-Dumaine’s Formula - Convert wrist circumference data to determine appropriate watch size (36mm, 38mm, 42mm, 44mm, 46mm) see attached image - Embed the calculator seamlessly into Shopify user interface. A domain name is available By fulfi...

I have an existing HTML php website and I'm looking for a skilled PHP developer to implement some additional functions, primarily time tracking features. Key Responsibilities: - Implement additional functions to an existing HTML website - Develop a time tracking feature - Ensure the website remains user-friendly and aesthetically pleasing Ideal Candidate: - Fluent in PHP with a good command of HTML - Previous experience in developing time tracking systems - A creative mindset for enhancing user experience

...provides a content report and suggestions for improvement, which will be reviewed by the CEO and CMO, and used as a guide for the next brainstorming session. Responsibilities: - Short-form LinkedIn Content Creation: Produce compelling short-form content specifically for LinkedIn, designed to engage and inform business leaders and professionals within our industry. - Long-form Blog Article Writing: Develop detailed, informative blog articles that delve deeper into technical topics, showcasing our expertise and the CEO's thought leadership. - Video Script Writing: Craft compelling scripts, captions, and footnotes for short-form videos. Ensure scripts communicate our innovations and insights in the industry concisely, clearly, and in the CEO's voice. - Drive Content Brain...

excel assignment for an event study. template and example below

I urgently require the expertise of a seasoned management consultant for the creation of a 5-7 slide presentation. This output will revolve around Project Management and should be tailored towards Stakeholders. As a professional, I envision the tone of the presentation to uphold a formal and professional manner. Key Requirements: * Ability to analyze and effectively present the pr...slide format provided. Preferable Skills: * Prior experience in creating business presentations at senior consultant level. * Background in Management Consulting * Strong proficiency in slide creation and design Your ability to deliver a clear, concise, and impactful presentation within a short time frame will be crucial to this project. It is urgent and required within a few hours. Slide template...

I am in need of a proficient Python coder who can develop a robust object recognition system for me. The key tasks for this project are as follows: - Create a Python code able to recognize and detect people and vehicles. - The code not only needs to detect these objects but also provide specific information about them, including flagging any instances of jumping signals via license plate detection. - Additionally, it should be able to identify instances of multiple riders on two-wheelers, whether the riders are Indian or foreign, again using license plate detection. Algorithm 4 different Deep learning Algorithm and tell the best * Yolo * other than Yolo any 3 Deep learning network model The ideal freelancer for this project should demonstrate previous experience in P...

...our business/website. Key Features Required: *Engaging Lead Capture Forms: Your task involves crafting captivating lead capture forms to attract potential customers effectively. *Comprehensive Lead Tracking and Analytics: We seek detailed insights into our leads' behavior and preferences, empowering us to refine our strategies for optimal results. *Strategic Lead Nurturing Workflows: You'll develop nurturing workflows to maintain active engagement with leads and guide them seamlessly through the sales journey. Primary Project Goals: *Increase Website Traffic: We anticipate a substantial surge in website traffic as a direct outcome of this project, providing us with a wealth of potential leads. *Enhance Lead Quality: Our priority is to capture leads of the highest qu...

For my website, I'm looking for a talented developer to create an elaborate 3D image preview tool using ImageMagic and PHP. See attached image for sample of how the image will look. Key Traits and Skills: - Proficiency in ImageMagic and PHP HTML Duties and Responsibilities: - Develop a 3D image preview tool using ImageMagic and PHP The goal of this project is to create a tool that will enable us to effectively showcase product features and details. Although the application details were not specified, a demonstration of past 3D tool development projects would be beneficial.

Develop macro-enabled Excel workbook

I'm urgently seeking a Django expert to develop a backend application for my project. This application requires: - User authentication and authorization, roles: Global Administrator: - Access to everything Application Administrator: - Access to application and data for all companies Company Administrator - Access to all applications and data for companies assigned to them Application roles (not administrator) - Supervisor - HR - User - Database: PostgreSQL - Integration with external APIs - Data processing and manipulation functionalities - Integration with a National ID validation API: - Security: JWT Token APIS: 1. User validation (username - password) - method: POST OK - Status 200 { jwt_token, refresh_token, user{first_name, last_name},global_permission

I'm looking for a talented designer to create a 10-page quote template for an IT company. All necessary content and pricing details are already prepared, so your focus will be on design elements, layout, and overall visual appeal. File Format: The final deliverable must be in Word format. I appreciate applications with relevant design experience, particularly in creating business templates. Feel free to share samples of your previous work that align with this project.

I'm in need of an experienced individual who can create high-resolution figures for my journal publication. Your task will include crafting these figures with the utmost care and precision. Key Responsibilities: - Develop high-quality, high-resolution figures that align with the content of my paper - Ensure the figures are clear, visually appealing, and easy to understand - Take into account the requirements of the specific journal I'm submitting to Ideal Skills and Experience: - Proficiency in creating professional-grade figures that are suitable for publication - Prior experience in working on academic papers or journals - Familiarity with creating figures for scientific or technical content Please do not hesitate to reach out if you're confident in your ability ...

I'm in need of a skilled AI developer to create a system that can assist influencers in filtering out spam and abusive comments on various social media platforms, specifically Facebook, Instagram, Twitter, and YouTube. Key Requirements: - Proficiency with Facebook, Instagram, Twitter, and YouTube APIs is necessary. - Develop the AI with the functionalities of Natural Language Processing, Sentiment Analysis, and Machine Learning to effectively filter out spam and abusive comments. - The AI should automatically delete these flagged comments, moving them to a separate folder for review by the influencer if they choose to do so. Your role would be to ensure the AI is efficient and reliable in filtering out these comments, reducing the manual work required by the influencers. Thi...

...script or automation tool I use to refresh an auction/selling site every second. However, due to the high frequency of requests being sent, I get flagged for "too many requests." As a result, I lose accessibility to the page for approximately 15 minutes, each time this happens. I'm seeking an expert who can develop a solution to this problem for me. Ideally, I want to maintain the high-frequency updates without triggering the page's request limits. Required Expertise: - Deep knowledge of web requests management - Experience with website automation tools - Proficiency in developing optimized scripts able to effectively refresh webpages - Understanding of website limitations and know-how to avoid triggering them - Familiarity with auction/selling sites...

We are seeking a skilled Python language tutor to provide online tutoring sessions for a group of three individuals consisting of two students and their teacher. The course will cover beginner to intermediate level Python programming concepts over four sessions, spread across 15 days. Each session should be a minimum of two hours and no longer than three hours. Responsibilities: - Develop a comprehensive curriculum covering fundamental Python programming concepts. - Conduct engaging and interactive online tutoring sessions for the group. - Provide clear explanations and examples to facilitate understanding. - Offer assistance with coding exercises and assignments. Requirements: - Proficiency in Python programming language. - Previous experience in tutoring or teaching Python to be...

I'm in need of a proficient Python developer experienced in web development, data analysis and automation scripts. The goal of this project is to develop a SaaS platform dedicated to Customer Relationship Management (CRM). The primary feature of the platform is a system that generates recommendations. Knowledge in contact management, sales forecasting, and email tracking are bonuses, though not strictly necessary. Efficiency, strong communication skills and experience in the SaaS domain is vital. The perfect fit would be someone who has previously worked on similar CRM projects.

As an AI Engineer, I'm looking for a specialist to develop an AI system that is proficient in machine learning and computer vision. In particular, I need the system to excel in image recognition and data analysis. Ideal Skills: - Proficiency in machine learning and computer vision - Extensive experience with image recognition and data analysis - Skilled in Python, TensorFlow, and PyTorch The AI Engineer must also have a solid understanding of the Python programming language, as well as experience working with TensorFlow and PyTorch frameworks. The ideal candidate will be able to demonstrate a strong track record in developing and implementing AI systems that can successfully perform image recognition and data analysis tasks.

I'm looking for a sleek and professional proposal template for our software company - to deliver to our clients with the pricing. The design should be made with our company branding (that still needs to be developed). The template should include the following sections: 1. Front page: General with the quote on top: Build a next level company | and also our next lvl company. 2. Inspiring page with a location where we can add info about our future. 3. Table of contents with a welcomming text to the top; Welcome to our business proposal to help you grow... 4. About our company, place to add text with a picture, and then below our mission and vision statement. 5. Here you can add The team, with the option to add a picture and a short description next to it with the two fo...

I'm in need of a skilled website developer proficient in creating E-commerce websites. Here's what is essentially required for my project: - Develop an E-commerce website - Integrate user-friendly functionalities such as customer login and personal dashboard - Incorporate an efficient inventory tracking system to keep tabs on product availability and sales The website will host a range of 50-100 products. Hence, the system should be robust enough to handle this volume seamlessly. Prior experience in developing similar e-commerce websites is much preferred. Understand that this is a critical factor for my project's success, so your quality of work matters above everything else.

...skilled Senior Software Engineer proficient in Rust, GoLang, and experienced in cloud technology. As a key member of our engineering team, you will play a crucial role in designing, developing, and deploying robust software solutions that power our platform. Responsibilities: * Collaborate with cross-functional teams to design and implement scalable, reliable, and secure software systems. * Develop high-quality code in Rust and GoLang to meet project requirements and deadlines. * Optimize software performance and ensure scalability across distributed cloud environments. * Implement best practices for software development, including code reviews, testing, and documentation. * Stay updated on emerging technologies and industry trends to continuously improve our software a...

I need a skilled developer to create a bespoke cryptocurrency chart race video generator tool for personal use. This tool will utilise APIs from platforms like Magic Eden to fetc...market caps over the selected time period. Interactive UI: Implement the provided UI design to allow for interactive selection of date and time, watching the chart race directly in the interface, and downloading the video. Video Download: The chart race should be downloadable as an MP4 file, ensuring high-quality rendering for offline viewing. Project Deliverables: A fully functional web application that meets the design and technical specifications outlined in the UI mock-up. Documentation detailing the architecture, functionalities, and instructions on how to run and maintain the ap...

Development of E-commerce Platform with Integrated Payment Split We are looking to develop an e-commerce platform with marketplace functionalities and integrated payment split. The main goal is to create an environment for the sale of dietary supplements, where merchants can list their products for sale on the platform, with a fee charged for each transaction. This fee needs to be divided into three distinct parts: for the merchants, for the marketplace, and for the payment gateway. The platform will operate under a subscription service model for buyers. To make purchases on the platform, the user will need to choose a subscription plan and make the payment. Only after this process will they have access to the functionality to purchase products offered by partner merchants. We ar...

Hello, I am searching for someone who can create me a certificate. I just need a template Thanks

I require a proficient Mailchimp specialist to handle tasks involved with email marketing and data entry. The objectives are as follows: - Email Templates Creation: Help develop corporate-styled email templates aligning with our brand guidelines. - Campaign Management: Oversee the sending of these email campaigns, ensuring they run smoothly and effectively. - Automation Setup: Establish and monitor automation workflows to optimize our marketing process. The end goal is to increase sales through these campaigns. The ideal freelancer should be experienced with Mailchimp, adept at producing professional corporate themes, and possess a deep understanding of email marketing strategies.

...landing pages (daily about 5 and this is ongoing project..) - User-friendly, Web and Responsive design with clear call-to-action elements - Develop and maintain websites using PHP, HTML, JavaScript/jQuery, CSS (Bootstrap, Tailwind), CMS (WordPress). - Collaborate with the marketing team to align website designs with digital marketing strategies. Implement additional functionalities using MySQL, PostgreSQL, MongoDB, CodeIgniter. The primary goal for these landing pages is to generate leads. It's essential that the design and functionality of the landing pages are optimized for lead conversion. Ideal Skills: - Proficiency in PHP, HTML, JavaScript/jQuery, CSS (Bootstrap, Tailwind), JavaScript and CMS (WordPress). - Proficiency in front-e...

I am in need of a proficient in Wordpress, with a high level of expertise in GHL Forms to develop a quoting tool for my website. The tool should have the ability to: - Calculate quotes - Collect customer's information - Generate price estimates Experience with similar projects would be ideal. Also assurance that the tool will blend seamlessly with the aesthetic and functionality of my current Wordpress site. I'm aiming for smooth customer experience throughout the quote generation process. Strong attention to detail will be critical for this task. The end goal is to enhance engagement and maximize conversions. This is what i see it does from the frontend: 1. Uses google maps/earth to locate the prospects property address 2. Uses the maps info to do an aeri...

NO AUTO BIDS - ONLY ZENDESK PRO! 'm in search of an experienced developer skilled in Zendesk API integration for a project related to airline claim forms. I will provide you parts of the template and you will add the form, calculations, API integration and ticket creations. The website should be built in Laravel or secure platform. If you know about EC261 claims it makes it way easier to choose you. You will do the following: - Create a form which is predefined through parameters and questions. - Add airline and airport database and organize the data with live search preview. - Calculations based on airport distance and claim form. - Zendesk ticket creation along with correct ticket numer and relevant information. - Multilingual form and site (Swedish and English). Need som...

We are looking for a Looker Studio expert to help us develop a new dashboard feature. The ideal candidate will have experience connecting to backend systems via API and displaying data in Looker Studio dashboards. We'd like to start with a consultation to discuss our vision for the feature and determine if it's a good fit for both parties. Important note: Due to possible personal contact, we prefer only freelancers from Europe. Looker portfolio examples are necessary.

I am in need of a skilled animation designer to create educational videos targeted for elementary school children aged between 6-12 years. Key Task Requirements: - Develop engaging and interactive animation videos with an educational focus. - Ensure the animation is suitable and engaging for children aged between 6 to 12. Ideal Skills and Experience: - Proficiency in animation software and graphic design. - Previous experience in developing educational content for children is highly desirable. - Ability to creatively interpret and communicate educational concepts.

...existing computer with the following specifications for optimal performance: CPU: Intel Core i7-12700F GPU: Nvidia RTX 3070 Memory: 32GB DDR5 RAM Storage: 1TB SSD Operating System: Windows 11 or Linux Set up and optimize the Llama3 (70b) language model on the local system. Process 2,300MB of data to be optimized for use with the Llama3 model. Develop a user interface or command line utility to facilitate local data queries using the Llama3 model. Deliverables: Configuration and optimization of the existing computer system for the Llama3 model. Successful installation and setup of the Llama3 language model. Processed dataset, ready for efficient querying with the Llama3 model. A functional user interface or com...

Developer to help in small android task, developer must have knowledge about android app and bug fixing Requirements are- Experience in android app

...European countries. In total there are 120 landing pages, very simple. each landing page must have: 1- Description of the exhibition site (CHATGPT- verified) 2- Address of the fairground, web of the fairground (no follow) also verified 3- A picture and a logo of the venue (we will provide the picture) 4- A google maps field indicating the venue. (verified) 5- A table with the fairs that take place at the venue (we will provide the link to each table, that will be already on our site) 6- We will need to set link 4 keywords per page linked to different parts of our site (4 links) 7- We will provide the template of page to use (is one of our elementor templates) 8- We will need to set the h1, h2,h3, and the page title for seo Our worpress uses elementor, we will provide ...

I need a professional to design a compelling PowerPoint presentation for a lunch and learn event that I'm hosting. The event is geared towards educating dental professionals on new techniques in general dentistry, with a specific focus on digital scanning. Key Project Requirements: - Develop a PowerPoint presentation with engaging visuals and clear, concise content. - The presentation should cover new techniques in general dentistry with a focus on digital scanning. - The content should be informative, educational, and provide practical insights for dental professionals. Desired Experience: - Experience in creating engaging and educational presentations, particularly in the dental or healthcare field. - Strong knowledge and understanding of general dentistry, specifically di...

Monthly, we populate a spreadsheet with the over time of the technical team, and the weekend / night shifts of the tehnicians working outside the business hours. We have a template that we want to improve. 2 categories: 1. Managers doing overtime (regular / night / weekend) and being oncall. 2. 24h shifts: complement to the salary based on night / weekend hours we should be able to calculate monthly the amount to be added to the fixed salary attached template (with complicated formulas and errors)

...identity for my brand that resonates with Millennials and Gen X. This includes creating a logo, selecting color schemes, and developing a design language. - Brand Messaging: Crafting the right brand message is crucial. I'm seeking a professional with experience in creating impactful and relevant brand messages for different target audiences. - Brand Strategy: It's important that the freelancer can develop a comprehensive brand strategy. This includes everything from positioning my brand in the market to outlining a content strategy. Brand Tone: - The tone of my brand is professional and minimalistic. I need someone who can help maintain this tone consistently across various communication channels. Ideal Skills: - Proven experience in visual branding, brand messaging, ...

I'm looking to hire an SEO expert for my jewelry brand with the aim of increasing website traffic, improving search engine rankings, and ultimately boosting online sales. Key Requirements: - Comprehensive SEO Strategy Creation: I need you to develop and execute a solid SEO plan to help meet my goals. - Website Optimization: My website has not been optimized for search engines in the past, so a thorough review and subsequent optimization is needed. - Google Focus: I would like the majority of our SEO efforts to be concentrated on Google. Skills and Experience: - Proven Track Record: Please provide evidence of past projects where you have successfully increased website traffic and online sales. - Deep Understanding of SEO: You should have a strong grasp of SEO principles and a...