Web development in india blog commenting sites jobs

I am looking for an experienced marketer who can significantly increase the views on my hip-hop song on YouTube. I'd like to specifically target the Middle East and India. Key Requirements: 1. Proven track record in YouTube marketing, especially in the music industry 2. An understanding of the hip-hop music industry and audience base in targeted regions 3. Execution of an effective marketing strategy that quickly drives organic views from Middle East and India Skills And Experience: 1. Social media marketing 2. YouTube marketing 3. Viral marketing Please provide examples of previous work with YouTube song promotion, specifically with hip-hop genre. Only bid if you have the mentioned skills/experience and are confident you can deliver the goal of ...

I have three Wordpress sites that need some quick fixes. These are small problems for someone who knows Wordpress. I'm looking for someone who can immediately handle the following: Site 1 (bikes): - A part under de slider is not showing when you visit the site - Fix formatting in footer - Implement the fixes directly on the live site. (site isn't visited yet) - Make sure everything is set ok for mobile friendly Site 2: (bathroom site) - My website is set as full width and worked like this. But suddenly it's not full width when I look at it. - On the shop page there is no link to the shoppingcart. This needs to be added. - Categories should be shown on the first page of the shop with images in blocks - Breadcrumbs need to be added correctly. - Checkin...

I'm seeking a skilled developer to create code using ASP.NET and VB.NET for an attendance taking system that utilises webcams. This system will be used on both laptops and mobile devices du...attendance by recognising student faces and storing relevant data. - Identification: Specifically, the system should use facial recognition to identify students. - Data Capture: Apart from recognising faces, the system should also record student IDs and attendance statuses. Ideal applicants should have extensive experience with ASP.NET, VB.NET, and a strong grounding in developing systems using facial recognition. Experience in developing applications compatible with multiple devices, including laptops and mobiles, is also essential. If this intrigues you and fits your skill se...

I'm in need of a programmer to develop a comprehensive system for my cargo company. It should primarily focus on Order tracking, Inventory management, and Billing and invoicing. Key features: - **Order Tracking:** The system must be able to track all the orders in real-time. It should be user-friendly and intuitive for both employees and customers to use. - **Inventory Management:** The system should be able to efficiently manage our inventory, including tracking stock levels, reordering products, and generating reports. - **Billing and Invoicing:** A crucial part of the system is efficient billing and invoicing. It should be able to generate invoices for our clients, keep track of payments, and manage any outstanding balances. Ideal Candidate: - Experience ...

I'm looking to build a chat bot for my website that supports customers in basic inquiries and issue resolution. This role would require strong experience in chat bot development and an understanding of customer support operations. Key Requirements: - Build a functional chat bot for a website platform - Implement chat bot functionalities specifically for customer support - Integrate the chat bot with CRM software for efficient customer data management - appointment booking - Integrate the chat bot with a live chat service for seamless customer interaction Skills and Experience: - Proficient in chat bot development, particularly for website platforms - Experience in designing and implementing customer support chat bots - Familiarity with CRM s...

I'm seeking an experienced web developer who can design a mobile-friendly eCommerce website for ZenitStone. Our main business focuses on selling kitchen countertop stones to other businesses. With a modern design aesthetic in mind, I need a clean, intuitive functionality that integrates bank transfers as a payment method. Prospective developers should: - Have a strong portfolio of modern design websites, especially eCommerce platforms - Excellent understanding of mobile-friendly design and optimization - Proven success in integrating bank transfer payment methods within an eCommerce setting I have budget considerations and a timeline set; more details will be shared with the selected freelancer. Looking forward to working with you. Thank you!

Hi I am looking for a theme If you have please provide to me in 500 rs inr If you have then please bid otherwise dont bid Thanks

I'm in need of a highly skilled and experienced web developer to create a website for me. The website's purpose is outlined in a PDF document attached. Key requirements: - Fast turnaround time. The project needs to be completed as soon as possible. - Ability to work with minimal guidance. While a detailed brief will be provided, I'll need a developer who can take the initiative and propose solutions where necessary. - Previous experience with e-commerce and real estate platforms is an necessary. Please note that the payment method integration will be required .

...Interactive Environments: Users should be able to interact with the world and objects within it. - Customizable Avatars: Users should be able to customize their online persona in multiple ways. -Real-time Multiplayer: The metaverse needs to support multiple users interacting in real-time. Interaction: The primary mode of interaction should be through keyboard and mouse controls. A detailed understanding of user controls in a 3D environment is important. Skills and Experience: - Expertise in 3js for creating 3D environments - Experience with creating customizable characters - Understanding of multiplayer game development - Ability to implement user controls for 3D navigation - Previous work with cartoonish art style. Can you build a metaverse? He...

I am looking for a competent and experienced developer to assist in the creation of a book search engine. This project will make use of Apollo Server, GraphQL, Node.js/Express.js, and Mongo DB, and is intended to be developed in React. Key Features: - Book Search Functionality: Users should able to search and view book information. The specific details to be displayed are flexible and will be detailed further during the development stage. - User Accounts: The application should provide the ability for users to create their own personal accounts, allowing them to save books for future reference. - Recommendation System: Ideally, the system should make recommendations to users based on their individual preferences. Skills & Experience: - Proficient with React, Apol...

I am in need of a proficient developer who can create a trading bot for me that can work on decentralized exchanges, specifically Raydium on the Solana blockchain network. Key Project Details: - The trading bot should be able to pick up info from my channel which pings of coins of interest, then execute trades on the Raydium decentralized exchange or through bonkbot via telegram app. - It should be designed to work autonomously, making informed decisions based on predefined parameters that I will provide. - I'd like the bot to be efficient, reliable, and capable of handling high-frequency trading. Ideal Applicant: - Proficient in programming languages typically used for trading bots development (e.g. Python, Java, C++). - Experience in developing bots fo...

Looking for an experienced web developer to create a map-based public website with the following features: Functional Requirements: • Display locations pin on the map based on Excel/database details (name, Address (or Lat/log), Phone, picture etc. Attributes) • Provide a nearby location list on the left based on the current location or a list of locations based on search and filter criteria. • Enable zooming to the selected location from the list and vice versa. When a map location pin is selected, the corresponding list should be highlighted in the left places list. • Map zoom based on the mouse scroll (Should not be embedded google map) . • The list will include pictures and summaries of the place's rating from Google, cost, number of review...

I'm looking for an experienced WordPress developer to optimize my website's performance. Key Tasks: - Implement performance optimization techniques for fast loading and smooth navigation - Ensure the site is responsive and free of performance bottlenecks In addition to performance optimization, I'm interested in: - Incorporating SEO optimization tools to enhance the visibility of my blog and text content - Suggestions on how to maintain the performance of the site post-upgrade Ideal skills: - Proven experience in WordPress performance optimization - Familiarity with SEO optimization tools and strategies - Good communication skills and ability to suggest and implement improvements for ongoing performance Please provide examples of previous Wor...

...content for a blog specifically targeting solo travellers. The main goal of the blog is to provide practical travel tips, share insightful travel stories and recommend budget-friendly destinations. These elements should be prioritized in your writing, offering value to our audience and inspiring them to explore. Key Skills and Experience: - Vast knowledge in solo travel - Excellent storytelling and writing abilities - Experience in creating budget travel-oriented content - Familiarity with kid-friendly travel destinations, although this is not our main focus. Deliver content that resonates with solo travellers, while also appealing to their interest in budget-friendly travel and diverse destinations. With your writing, inspire others to ...

...based on their respective profiles. 2. User Communication: There should be an in-built functionality for users to communicate with each other. 3. Profile Management: Users should have the ability to create, manage, and update their profiles seamlessly. 4. User Registration: An efficient and user-friendly sign-up process is essential. 5. Advanced Search Filters: The app must provide users with advanced search filters to aid in their quest for the perfect match. 6. Match Recommendations: There should be an algorithm that combines various user preferences to recommend potential matches. The ideal candidate needs to have previous experience in developing similar apps with a strong grasp over back-end development, user interface, and user experience. Knowl...

...create a web-based numerology calculator. The calculator should incorporate the calculation of the Life Path Number, Soul Urge Number, and Expression Number. Key Features: - Life Path Number Calculation: The calculator will need to accurately derive the Life Path Number based on the user's date of birth. - Soul Urge Number Calculation: The calculator should calculate the Soul Urge Number using the vowels in the user's full name. - Expression Number Calculation: The calculator will determine the Expression Number by analyzing the consonants in the user's full name. Design: I have a specific design in mind for the numerology calculator. The layout should be user-friendly and visually appealing, enhancing the overall user experience. Ideal Skil...

...jumbled. Also for 'articles' and the blog to be amalgamated, integrating e-commerce functionality would be good, but we just want to showcase maybe 1 or 2 items on the landing page, rather than have a lot to sell. We only sell cards (MTG) sporadically, so e-commerce is not a big focus here. The refreshed website should have improved navigation and user experience, with a focus on signposting people to the forums in the hope they post and become part of the community > snowball effect. Anyone who wants to help, who loves Magic as much as me? I would happily send you a big thank you care package! All us Homarids would :) Thank you. Key Tasks: - Redesign the website layout to embed the website's forum. Minimalistic, uniform and unjumbled 'articles�...

I am in need of an experienced website designer who is especially adept at creating E-commerce websites. Here are the specifics of what I need for the project: Main Purpose: - The main function of the site will be to serve as an E-commerce platform. Key Functionalities: - An effective product listing setup is essential, as there will be less than 50 products listed initially. - A shopping cart feature is vital for the overall user experience. This feature should function seamlessly and securely, as it will be the core of the business operations. - User registration and account management facilities must also be implemented. This feature should provide an easy-to-use interface that allows users to create an account, manage their profile, and monitor their orders. Ideal Skills: - P...

I am seeking a talented frontend web developer who can create a traditional, professional portfolio website for me. Key Features: - Website Type: Traditional and Professional Portfolio. Ideally designed to prominently feature written work. Ideal Candidate: - Strong website design and development skills. - Prior experience in creating portfolio websites, specifically featuring written work. - Familiar with the aesthetics and necessities of a traditional, professional portfolio layout. - Excellent communication and collaboration skills, with a keen attention to detail. This is a wonderful opportunity for web developers to utilize their creative and technical skills to truly showcase written work effectively in a professionally designed virtual platfor...

I'm in need of a skilled Java Spring Boot developer to create a web application for me. The project has to be completed within a month. Key Requirements: - Proficient in Java and Spring Boot - Experience with web application development - Ability to work diligently to complete the project within the specified timeline. I have not decided on the database technology yet, so I am open to suggestions. However, if you have a recommendation or specialization, I would like to hear it. Time Management: It's crucial that the freelancer I hire can manage their time effectively and prioritize my project. This is a time-sensitive task that requires commitment to meeting the deadline. Post-Completion Support: After the project is complete, I may requi...

I'm in need of a professional who can help me develop a website and an app for my business. The goal is to promote the services I offer, targeting mainly individuals. The ideal freelancer should display the following: - Experience in creating both websites and applications - Proficiency in modern coding languages - A strong understanding of corporate and professional designs - The ability to incorporate a user-friendly interface - Strong communication and understanding of client's needs I'm specifically looking for a design that reflects professionalism and corporate ethics. The purpose is not for selling products online, but for promotion and resourceful information provision. If you have the needed skills and can deliver quality work timely, pl...

I am in search of a skilled and experienced app developer who can create a complete iOS app from scratch with an emphasis on generating revenue. While you have the freedom to suggest features and functionalities, you should consider including features that commonly drive user engagement such as, but not limited to: - Social media integration - Push notifications - In-app purchases Applications for this project will only be considered if they meet the following criteria: - Demonstrated past work: Please include apps you've developed that are currently on the App Store. Bonus points for apps that have a track record of generating revenue. - Experience building revenue-focused apps: Explain how you have increased user engagement or revenue in a prior app deve...

I am in need of a talented artist or illustrator based in Bombay for a short-term project. I require hand-drawn sketch and a painting of an object that looks realistic in style. Ideal Skills and Experience: - Proficient in hand-drawn sketches and paintings - Previous experience in illustration or similar field is desirable - Must be based in Bombay, India - Able to deliver the hard copy by tomorrow (4/21/2024) Please feel free to reach out for more details or to share your portfolio. Looking forward to working with a skilled artist.

Looking for a seasoned developer experienced in creating custom web-based inventory systems. The system should be user-friendly with capabilities including: -Category Management -Product Management -Dashboard for admin with full access -Dashboard for users with limited access -Comprehensive Reporting System Applicants who have past experience developing similar systems will stand out. Kindly include examples of your previous work in your application for my consideration. Not only would this experience be relevant, but it would also provide me with a level of comfort in your ability to deliver. Understanding the nuances of access-level dependent dashboards will be essential in this role. The perfect candidate will be able to create an easy-to-use interfa...

I'm looking to enhance our website's user experience by incorporating color swatches for product selection. Additionally, I'd like to ensure that the size filter functions seamlessly, displaying available sizes upon selecti...like to ensure that the size filter functions seamlessly, displaying available sizes upon selection. Furthermore, I aim to optimize our product listings by displaying color variants as separate SKUs, allowing customers to easily identify and choose their preferred options. Key requirements: - Custom coding in Shopify - Experience with online store development - Ability to Add Custom Filters, SKU, ETC.. Please only apply if you have a strong background in Shopify development, particularly in product sales. Experienc...

Need a skilled individual to help increase my website's search engine rankings through Private Blog Network (PBN) links building. I operate in the Service Center industry and want these PBN links to be specifically created on relevant blogs. The key responsibilities include: - Building high-quality PBN links on relevant blogs - Enhancing the authority of my site - Driving more organic traffic The ideal freelancer for this project should: - Have experience with PBN links building - Have a clear understanding of SEO - Be familiar with the service center niche. Experienced freelancers with a proven track record in similar projects will be given priority. Looking forward to a successful collaboration.

...developer, ideally one with experience in building applications compatible with both iOS and Android. The app should have similarities with Snapchat in terms of functionality, but with some unique features: - Creation of User Accounts: The app should facilitate the creation of individual user accounts. - Downloading Images and Videos: Users should be able to download images and short videos, which will be automatically stored in a company folder. A successful bidder should have extensive experience in mobile app development, specifically on iOS and Android. Versatility in crafting unique features and in-depth knowledge of social sharing principles are a must. Proficiency in the implementation of user account systems is a...

I'm in need of a skilled web designer to create an intuitive, engaging, and professional website. The site will serve as an informational hub for adults wanting to create legal documents, hence the design should be tailored to this demographic. Key Features: - Blog Section: The website needs a well-integrated blog section that can be easily updated and allows for different categories and tags. - Contact Form: A user-friendly and functional contact form is crucial for potential clients or visitors to easily get in touch with us. I'm looking for a freelancer with a strong portfolio of creating informational websites, particularly those catering to adult audiences in particular legal services. Experience in implementing and customiz...

Note: my budget not more than 20$ for the whole project The idea : development/design video website with chating

...platform. I am based in Hyderabad, and it would be a bonus to be able to collaborate with someone locally. Key features required are: * Custom Design: The candidate must be proficient in creating unique and functional web designs to capture the essence of my brand. * Blogging Platform: The site must incorporate a blogging platform, enabling regular content updates. The website should also include these integrations: * Social Media Sharing: Ability for visitors to easily share blogs and site content on their social media platforms. * Contact Forms: Customizable contact forms for visitor inquiries and data collection. I am on a tight deadline and need this project completed ASAP. Please share work samples when making a bid. Proficiency in advanced WordPre...

...files will be used for various purposes, mainly for visualizing on Google Earth, sharing with others and for analysis. The comprehensive tool should ensure medium level of detail in kmz output. Requirements: - Experience with geospatial data handling - Knowledge of netCDF and KMZ formats - Proficiency in programming language suitable for this task - Develop an automated process or tool for daily conversions - Ensure an email notification system for completed conversions Would be a bonus if you have previously developed similar data conversion tools or services. A keen eye for detail and precision is needed in order to maintain data integrity during the conversion process. Let's talk if you can meet these requirements. Data Service :

...looking for a skilled web developer who can help me with my project. I need a hotel booking website. Key Features: - The website should cater to hotel bookings, displaying available rooms, prices, and other relevant details. - User registration and login functionalities are essential for tracking bookings. - Search and filtering options will help users find and book rooms efficiently. - The website should support online payment integration. I already have a playlist for this project, so I will provide you with the necessary resources. Your main task would be to develop an interactive and user-friendly website based on the provided playlist. Ideal Skills: - Proficiency in web development, specifically in building user-friendly and interactive website...

Note: my budget not more than 20$ for the whole project The idea : development/design video website with chating

I'm looking to have a service-based application developed which can work efficiently on both iOS and Android platforms. The primary purpose of this app will b...seamless navigation. - Smooth booking functionalities with availability checking and confirmation features. - Real-time tracking of bookings to provide updates to users. The ideal Freelancer for this project should have: - Experience in cross-platform app development (iOS & Android). - Proven track record in developing booking apps or similar. - Strong understanding of UI/UX principles for intuitive app design. - Good communication skills for regular progress updates and potential troubleshooting. Your proposal should include: - Your approach to app development. - Previous similar projects un...

The primary objective of this project is to boost organic traffic to the [Blog Website] by implementing a strategic SEO and content marketing plan. By optimizing the website for search engines, creating valuable and engaging content, and leveraging digital marketing tactics, we aim to increase visibility, attract targeted visitors, and improve overall user engagement metrics

I'm seeking a skilled ...positions. - **Multiplier for Distance for Further Positions:** This factor will help in setting the distance between the different positions. - **Take Profit in POINTS:** The ability to set a predefined take profit level in points for open positions, calculated at an average cost. - **Trade Direction:** I need the flexibility to choose the trade direction - Buy, Sell, or Both. - **Max Account Loss:** The EA should have a feature to limit overall account loss, ensuring risk management. I'm looking for a coder with: - Proficient experience in developing EAs for CTrader - Strong understanding of Martingale trading strategy - Ability to create a user-friendly interface for customizing these parameters. - Prior experience in...

I am seeking an experienced iOS App Developer to develop a minimalistic application which would enable voice calling over the internet. The app should be designed with usability in mind. More detailed specifications are to be discussed. Key Features: - Voice calling Preferred Skills: - Experience in Xcode - Prior experience developing voice calling mobile applications We don't need any complex interface or features. This is a test app. On opening the app, I just want to see 1 button where I can call the other person who has same app installed. That's it. Only bid if you have previously developed a similar app. Please respect our time and yours.

I need to add a multiple select dropdown check box to my ads placement form in my application. It is a php script from phpbrobid. I have data in my mysql table. Table columns are id, name, and parent id. The is multiple levels of parent child relation. Display the data in the table till the last level. And note the following: - One can select or unselect all child fields by selecting or unselecting the parent - Dropdown for each parent no matter the level. - The multiple select dropdown check box should work in the ads placement form of the phpprobid script. - Will provide access to the script and table of sample data with multi-level parent child relation. - See attachment for example select dropdown check box. Remember what I am looking for is multiple le...

I am seeking proactive individuals capable of recruiting over 20 channel partners per district in North and East India. Your primary focus will be on finding partners who are adept in the sales and marketing of products. A background in sales, marketing or recruitment could be beneficial, but is not mandatory. Successful onboarding will see you earn a commission per partnership fee. Ideal skills and experience: - Proficiency in sales and marketing - Familiarity with North and East India districts - Strong networking skills - Proven track record in recruitment Responsibilities include: - Identification of suitable channel partners - Partner onboarding - Ensuring partners are skilled in sales and marketing - Manage partner relationsh...

I'm loo...Calendly. - Calendar Integration: The app must seamlessly connect with Google and Apple Calendars, ensuring that all scheduled appointments are reflected accurately. - Customizable Booking Forms: I'd like the booking process to be flexible and tailored, allowing for customizable fields, brand-specific options, and support for multiple languages. Ideal Skills and Experience: - Proficiency in Shopify App Development - Previous experience developing appointment booking systems - Knowledge of Google and Apple Calendar APIs - Strong front-end design skills for custom form creation - Multilingual support implementation experience A successful candidate should be able to deliver a user-friendly, visually appealing, and reliable booking solution that meets my sp...

I'm looking for a web developer to create a Blogging platform that is user-friendly and engaging for the general public. Key Features: - Social Media Integration: A core feature I'd like is the ability for users to link their social media accounts to the platform. This will enable them to easily share their posts and increase the platform's reach. I'm particularly interested in developers with experience in creating user-friendly interfaces, incorporating social media features, and ensuring the platform is scalable for future growth. Let me know your thoughts and if you're the right person for the job.

I'm in need of an experienced database developer to create a robust and effective database on the Oracle platform. Key Tasks: - The design and creation of appropriate Data Definition Language (DDL) and PL/SQL based database - The development of complex queries for advanced data manipulation and retrieval Expertise Needed: - Extensive knowledge in Oracle database creation - Proficiency in writing and managing complex queries - Prior experience in handling large scale database projects - Excellent problem-solving skills Please note, the purpose of this database is not yet determined, therefore flexibility and adaptability will be necessary. I look forward to receiving bids from dedicated freelancers who master their field.

...into a Progressive Web App. Key requirements and details include: - **Main Functionalities**: I need the PWA to support user registration and login, as well as push notifications. The PWA should be built with a focus on usability, speed, and reliability. - **Design Files**: I have design files available for the PWA. This means you'll primarily be responsible for the development and implementation of the PWA, rather than design work. However, any suggestions for improving the user experience are welcome. - **Device Optimization**: The PWA should be optimized for a range of devices including smartphones, tablets, and desktops. This includes ensuring a seamless experience across these different platforms. Ideal skills and experience for this project include: - Prof...

I'm looking for an experienced game developer to create a ladybird-themed puzzle game app for both Android and iOS. The main objective of the game is strictly for...for both Android and iOS. The main objective of the game is strictly for entertainment purposes. Key Project Requirements: - The game should be engaging and suitable for a broad range of age groups. - The game should have a puzzle-based gameplay, challenging yet fun. - The game should have a ladybird (ladybug) theme throughout. The ideal candidate for this project would have: - Proven experience in developing puzzle games for mobile platforms. - A good understanding of game design principles. - Previous experience with ladybird (ladybug) themed games would be a plus. - Excellent communication skills and a collabor...

I am looking for content writers with exceptional writing skills. The project involves creating blog posts, product descriptions, and social media posts. Key Requirements: - Ability to write in a formal and professional tone - Proficiency in writing 500-1000 words per piece - Versatility in creating content for different mediums such as blogs, product pages, and social media Ideal Candidate: - Previous experience in content creation - Strong grasp of grammar and sentence structure - Ability to adapt writing style based on content medium Please include writing samples in your bid. Looking forward to working with you.

I am seeking a proficient app developer who can bring my vision of an e-commerce app to life. The platform should specifically be tailored for Android. The app should be developed with certain fundamental features a...unhindered shopping cart and secure checkout functionality for optimal user experience. - Product Search & Filter: Users should be able to effortlessly search and filter products based on their preferences. Fortunately, I have a design and wireframe ready for this project which will provide a clear picture of my expectations. Ideal candidates for this project would have significant experience in building e-commerce apps for Android, and have a thorough understanding of incorporating these key features. Design skills are not mandatory since the design is already ...

Note: my budget not more than 20$ for the whole project The idea : development/design freelancers platform with videos from scratch

I'm aiming for a custom application for my Samsung Galaxy watch that sets task reminders. The app should be designed in a manner where pre-existing reminders can be edited as per the user's demand. Moreover, each reminder should display on the screen for 2 seconds and be accompanied by a vibration. The reminders should be limited to 20 characters in length. - Absolute Requirements: - Reminder Duration: The reminder text should be visible on the screen for exactly 2 seconds. - Vibration: Upon displaying the reminder, the watch should vibrate once. - Reminder Length: The app should limit reminder text to 20 characters. - Edit Option: The application should permit users to edit existing reminders. Reminders will start and stop at specific time ra...

I am seeking a knowledgeable web developer to create and implement a portfolio website for my business. Key Features: - Contact form: There should be a clear and concise method for potential clients to get in touch. - Gallery of past work: This should show off my past projects in a visually appealing way, potentially with the option to click into details of each project. - Testimonials section: User-friendly space for recommendations and reviews from past clients. Website Structure: The website should include the following pages - - Home: An engaging landing page that clearly communicates what I do and invites users to explore further. - About: A section to share a bit about myself and the story of my business. - Services: Detailed descriptions of the services I off...

I'm seeking an experienced UI designer to create a simple, user-friendly desktop interface for MacOS. The primary function of this UI should focus on data entry and display. Need a simple UI to choose "from directory", then run existing python code to convert .xml data to .csv and then save to a "to directory" or "save to s...function of this UI should focus on data entry and display. Need a simple UI to choose "from directory", then run existing python code to convert .xml data to .csv and then save to a "to directory" or "save to same directory as source" Also need slight modification to python code to convert 2 more sets of .xml data to .csv Skills Required: - Proficient in MacOS software development - Previ...