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I'm looking for a skilled Python developer with experience in GPU programming using CUDA to assist in a project that involves image processing and data analysis. - I have a python code and I need to modify it to work with GPU the code takes an image changes its pixels one by one and each pixel change calculates new image hashes if images hash satisfies some specs it save image and code ends. this is whole python code is doing now. it is a 40 lines code. very simple for someone who knows how to code on cuda.

hello I'm looking to set up a team that would help me start my company so the deal is that I want to start a movie streaming company that lets users stream and download movies and TV shows from their phones and laptops/computers and TVs. So I have already pitched the idea to investors and they are willing to invest in the project under two conditions first, I must form a team dedicated to the idea second, the investors want the app to gain traction so if the app gets more than 10000 +active users, we will get funding to continue with the work in two months so the problem is I don't have the money to pay you right now but once we get funded I will pay you very well so i need 2 developers {able to ...

I'm having a peculiar problem with 3ds Max where I can't seem to save my finished renders. There is no error message popping up, which makes it all the more confusing. I've tested other file types, and they save just fine; the issue only occurs with the finished renders. I need a freelancer with a strong understanding of 3ds Max, experienced in troubleshooting, and ideally someone who has encountered and resolved this issue before. It is critical to me that this issue is resolved promptly while ensuring no data loss - the integrity of my existing files is of utmost importance.

I'm looking to develop a simple interactive game that can be played during a live TikTok stream. The main idea is to engage the viewers in a fun and competitive way, by combining User challenges and User chat. Key Features: - It should have Leaderboards to showcase top players. -works with tiktok live webscraper -account registration for game owners so it can operate as a saas Gameplay: - The game should be designed for Multiplayer mode, so users can compete against each other while watching the live stream. - Users will both chat and take on challenges, with their performance influencing their position on the Leaderboards. This project requires a developer who is familiar with TikTok live webscraper written in python and can design a game that seamlessly integrates ...

I am looking for a Video Editor who is experienced in creating Youtube videos. I'll provide the script. CapCut video editor (free video editor) has SRCIPT/TEXT to Video. It creates the most the B-Roll, Captions, Voice, and Music. You will add more B-Roll, effects, tit...a Video Editor who is experienced in creating Youtube videos. I'll provide the script. CapCut video editor (free video editor) has SRCIPT/TEXT to Video. It creates the most the B-Roll, Captions, Voice, and Music. You will add more B-Roll, effects, titles. The videos are approximately 16-23 minutes. Your job is using the script that I provide, to create the video. If you use CapCut it will save you a ton of time. This is an ongoing project. We need several videos. In your bid, tell me what video e...

...selection controls in place - Modern and attractive up-to-date designs - Customers should be able to view all their account information - Customers should be able to download copy invoices and credit notes - Customer should be able to pay online - Customers should see what’s on backorder for them including editing and cancel them - Livestock and pricing - Requesting returns - Track their orders - Save orders - Choose to place an embroidered/printed order or plain stock order. Orders cannot be mixed and we need controls in place - Automatically add surcharges for under-minimum orders - Customers should be able to manage their users - Manage their delivery addresses which updates our system - Chat option - You will need to build an API that connects to our system an...

Need advanced SQL including stored procedures, functions, based on existing SQL code. Need c# coding with dojo -Ideal Skills/experience * c# with dojo * MS SQL Server proficient. * Expert in advanced SQL features like stored procedures, functions. * complex SQL queries. * generating SQL reports from tables.

I need a professional to mine data for me. I need you to download and extract the submissions and comments from a public Reddit dataset for 40 subreddits that I will give you. - Data Collection: Please extract the submissions and comments from this academictorrents l...and extract the submissions and comments from a public Reddit dataset for 40 subreddits that I will give you. - Data Collection: Please extract the submissions and comments from this academictorrents link: https://academictorrents.com/details/56aa49f9653ba545f48df2e33679f014d2829c10/tech&filelist=1 I only want the comments and submissions for specific subreddits that I will supply to you. Please save the extracted data as csv file. - Frequency: This is a one-time job. Skills and Experience: - Torrent download a...

I need someone who can donaload following datasets, then join them into one and merge into one dataset in COCO format so that it works out of the box if I replace data in attached notebook. Here are the links https://archive.ics.uci.edu/dataset/241/one+hundred+plant+species+leaves+data+set I am interested only in the following plants: Phragmites australis Typha angustifolia Typha latifolia Acorus calamus Iris pseudacorus Schoenoplectus lacustris Nymphaea alba Nuphar lutea Potamogeton natans Hippuris vulgaris Sagittaria Subulata Lemna minor Ceratophyllum submersum Ceratophyllum demersum Other classes should be removed.

I'm looking for a skilled developer that can create a comprehensive CMS platform for handling loan data. Key Functionalities: - User Management: The CMS should have the ability to manage users, with a specific focus on admins. - Reporting and Analytics: The system should incorporate robust r...seeking is for admins to manage the system. Rejected Applications: - The system already have a mechanism in place to handle rejected loan applications. Ideal Skills: - Experience with CMS development - Strong understanding of data management and analytics - Proficiency in user management systems - Prior experience with loan application systems would be a plus. Note: We've google sheets which save all the data as of now. We want all the data to be migrated to Admin instead of goog...

I am ready to award this project now. Please only bid if you can start right now and I award straight away. I need a professional who can assist me in finding and saving 6-8 images and 1-2 data sheets for 65 items from a single website. Key Requirements: - The images and data sheets are located in specific sections on the website. Search for product name, select product name and then save images and data sheets. - The collected images and data sheets should be organized by item name and saved into directory name and complete directory containing all information sent to me Skillsets Required: - Excellent web research skills. - Proficiency in data and image saving. - Ability to organize and name files properly. - Detail-oriented to avoid any mix-up. - High level of patience for...

I'm seeking an experienced developer to build an e-commerce website and mobile application with a user-friendly interface that will facilitate sales of my products/services. Key features the platform should contain are: - User Account Creation: Valued customers should be able to easily create personal profiles on the platform. - Shopping Cart: Users must be able to select and save multiple products or services before deciding on final purchases. - Product Search: The platform should incorporate a quick and efficient search functionality to help users locate specific products or services. On the management side, I'll be directly overseeing product/service inventory. Therefore, it's crucial that the platform integrates easy-to-use inventory management features. Pr...

I'm seeking a skilled 3D designer to bring my vision of a virtual puppy store to life. Key Elements: - The design should reflect the 'world famous puppies' brand and its theme - Incorporation of a flex LED screen showcasing a live stream of puppies from a variety of breeds - A cute, cartoon-themed store design Tech Specs: - 3D modeling and rendering skills are essential - Experience with creating interactive, visually appealing designs is a plus - Knowledge of LED screen integration and animation preferred - Familiarity with creating cute, cartoon-style graphics Interactive Features: - The touchscreen kiosk should allow users to view puppy profiles and engage in a live chat with a puppy expert. Please take a look at my Instagram (@worldfamous_puppies) for m...

Please only contact me with your proposal for the below if it includes Liquidsoap integration. I'm in need of a music streaming website that specializes in the discovery of new and unique music, primarily from my personal record collection. ...Understanding of how to curate and present music for discovery. - Able to create a user-friendly and engaging experience without a full navigational interface. Please note that the project will be for streaming only, without any interactive features for the users. I will need advice on storage of the media, cloud or personal server. Each track must display Artist, Track and Artwork. The player or stream will be integrated into a front end design that is not part of this project. The player aspect of this website is my reference

I need to create a console project in C# Net Framework that I can listen the data from an equipment Mindray BC-20s and / or BC-30s. Using Ethernet configuration and HL7. The data that comes from the clinical equipment needs to be save it on txt file. The configuration is using TCP/IP and I need - Port for every equipment Any questions? I made a console project but I could no be able to get the results from those equipments. I need a person who had been working with HL7.

Create a Sentinel workbook to display enabled user accounts that have not logged on for 30, 90, and 180 days. This includes creating a runbook to save all Active Directory users on a Sentinel watchlist.

I require a freelancer with skills in WordPress, RecordRTC usage, and video editing. The goal is to create a WordPress page which includes the following: - A voice recording feature using RecordRTC capable of audio and transcript recording, the recorded files should have option to save locally on the device or saved onto OneDrive cloud storage. - The page should list the saved voice recording files and able to play the recording or delete the recording file. - A YouTube instruction video using recorded screen activity to guide users on how to use the page and the recording feature - A very brief instruction text beneath the video - A contact form for user inquiries Experience in similar projects and proficiency in English language are a plus.

I'm looking for a professional to take my existing dropshipping online store to the next level. Key Features Needed: - Automatic Order Fulfillment: I need all orders to be processed automatically to save time and increase efficiency. - Product Finding & Listing: This is a crucial feature as I want to focus on home decor as my main product category. Supplier Switch: - I initially used AliExpress as the supplier but I'm looking to change this to Auto DS. Auto DS is preferred due to the shorter shipping times it offers. Ideal Skills and Experience: - Proficiency in using Shopify and Auto DS. - Proven experience in eCommerce and specifically dropshipping. - Knowledge in the home decor market is a plus. Please provide examples of similar projects you hav...

I need a skille...need a skilled Android developer who can build an efficient, user-friendly Events Calendar app using Android Studio Native code. Here are the features required: - Reading event parameters from a URI: The app must be able to fetch event details from the specified URI and display them effectively in the application layout. - Video and background music playback: The app should offer a feature to stream a related video accompanied by background music during the event display. Kindly note, the design specifics are already decided and will be shared for further implementation. Proficiency in Android Studio Native Code, understanding of integrating media playback functionalities, and experience in fetching and displaying data from a URI are indispensable skills for thi...

I'm seeking a skilled developer with experience in C++ for a project involving the Raspberry Pi. The task at hand is to create an application that can take a 50Hz 1024x640 video stream from a remote URL and display it on a local monitor through the HDMI output. Key Requirements: - The application must ensure the playback of the video stream without dropping frames. - The latency between the incoming video stream and its display on the local monitor should not exceed 2 frames. Ideal Skills and Experience: - Proficiency in C++ is a must for this project - Prior experience working with Raspberry Pi would be a significant advantage - Experience in real-time video streaming and low latency applications would also be highly beneficial. Please note that the primar...

I am keen to have a state-of-the-art AI Job Portal named '' developed, aimed to cater to job seekers around the globe. Key Features & Functionalities: - AI Job Matching: Primarily the portal should be able to perform the following: - Match jobs based on user ...according to the user's activity. - Recommend jobs adeptly considering user's skills. Given these functionalities, the ideal candidate for this project should possess expertise in AI and machine learning, must possess extensive experience in software development specifically for job portals. Familiarity with NLP to parse and scan resumes would be an added advantage. Our core objective is to save time and resources, hence efficiency and cost-effectiveness is essentially required in the comp...

Looking to develop a hiking App in Flutter. Key Requirements: 1: It will need to work both online and offline and display/use offline maps. (Normally a topo map. ) 2: It will need to allow the user to ...need to work both online and offline and display/use offline maps. (Normally a topo map. ) 2: It will need to allow the user to select different layers to display, eg / tracks / waterways / POI. These could be Polygon shape files, CSV files, KML or GEOJSON files. 3: It will need allow the user to save: tracks as they hike around, POIs, and maybe take a photo at a point and Geolocate it? 4: User will need to be able to add/save waypoints 5: User will need to be able to select items in KML /shape files...

I'm in need of a professional who can accurately develop a PDF editor that can automatically crop selected areas within a PDF document and save them in the same format. Here are the details: - The selected areas that need to be cropped haven't been specified, suggesting this should be a flexible feature adaptable to varied project needs. - The freelancer should showcase experience in similar projects, demonstrating their knowledge and capability in PDF manipulation or editing using PYPDF2 library. Your role will entail the creation of a bespoke solution to cater to this scope. - The project requires an intermediate level of expertise in managing and manipulating PDF documents. I look forward to seeing your bids and discussing how we can move this project forward. Prev...

... - Marketing Automation: Segmented and targeted marketing tools. Automatic email and whatsapp automations. - Scheduling and Online Booking: Flexible scheduling per doctor and per room, including online booking capabilities. Scheduling calendar should integrate into the website. - Notifications: Automated email and SMS notifications system. - Custom Medical Charts: Capabilities to save, access, and visualize pictures and scanned documents. - Photo Documentation: Secure management and storage of medical photos. - Invoicing and Financial Management: Full integration with Lexoffice for seamless financial operations. Inventory Management: Efficient management tools for medical and office supplies. Integration Requirements: Extensive experience integrat...

Hi we have some functions stop working on current PHP web app please only bid if you can start now issues related to save records in database

The application will allow users to: Capture photos using the device's camera with overlays for composition or guidance. Apply various enhancement features to improve the photos, such as: Brightness and contrast adjustment Color correction Applying filters Cropping and resizing Save the edited photos to the device's storage. Technical Skills: Proven experience in Flutter development Familiarity with camera access and integration in Flutter apps Experience with image manipulation libraries in Flutter Knowledge of implementing custom overlays on the camera preview Bonus Points: Experience with integrating image editing SDKs Experience with cloud storage for saving edited photos (optional) Project Timeline and Budget: Please outline your estimated timeline for completion ...

I'm looking for a Python expert who can assist me in setting up real-time video streaming and data transfer from Raspberry Pi 5 to a PC over a static network configuration. The project involves an underwater camera and sensor data. Tasks include: Supply Python client and server scripts on a PC and rpi5+camera over a static IP network connection. Using the picamera2 module to stream video to PC. The video is recorded on the PC (time stamp for file name), with text overlay on the video showing PC date and time. UDP for simple 2way communications of small 'hello world' type text strings between the RPI5 and PC. Happy to control everything from the python script on the PC at present with a simple window for viewing the video. No GUI required at present. You should hav...

Create a relational database for the following data in a single tables with parts store. You may use alphanumeric to represent store and use surrogate key as primary key. Bring a hard copy in class and answer two quires in class. (points Project creation 20 + two query 20) 1. Vendor 1: Low Hardware, 1200 Harding st, Pine Bluff, AR 71602, Phone 870-535-1000 Supplies screw Siz....12 ¼ -24 Yes ¾” .07 100 No/yes 0/50 .14 ¼ -24 Yes 1” .08 200 Yes/Yes 100/50 .16 ¼ -24 Yes 1 ¼” .10 100 Yes 200 .20 5/16-18 Yes 1” .20 50 Plastic/Brass 50/50 .25/.50 5/16-18 Yes 2” .25 50 Plastic 100 .30 5/16-18 Yes 3” .30 10 none 5/16-18 Yes 4’ .35 .20 Brass 10 .35 All the answers must have a question, query and the ans...

Hello. Did you block me? I dont understand that. I was just unsure about the safety around hiring someone and giving access. Now i have checkt, and feel more save in how to do this. Plz contact me so we can go forward.

need to change document to look more professional have it save as a pdf and have auto signature on it i will need my logo put on to it. i will need to be able to insert pictures i will be needing to do all of this from a Samsung tablet, so if i take the pic on the tablet i want to be able to insert that pic into the doc all of the information on the original doc will stay the same and i want them to stay as tick boxes the attached doc is an example of that the original doc is

If you would like to be paid outside the freelancer system, please do not respond to this posting. If you are outside the United States please save your time, and do not respond. If you do not want to speak on the phone before the project is awarded, same thing please save you time. I require a qualified Structural Engineer or an Architect in California. The scope of work encompasses: - California specific calculations - Stamping plans and calculations - NO Electrical or Plumbing We have plans for a relatively simple outdoor Awning/Canopy. The canopy is on an asphalt surface with concrete footings without any electrical or plumbing. We need the calculations done by a California licensed Engineer or Architect and has the ability to provide an engineering stamp on the p...

Need to import views, floor plans and cross sectons from Archicad 24 file. For some reason cannot get it in the program. Als oneedot save settings in the PLA file for a future use

Hi we have small web application on PHP we have face issue to save or publish some data and some table shorting please bid if you can fix this quickly

I'm looking for a diligent and experienced real estate cold caller to help me generate leads. The focus of this role will be on: - Reaching out to homeowners and For Sale By Owner (FSBO) listings. - Targeting a specific county in my region. The ideal candidate for this project should have: - Previous experience in real estate...in real estate cold calling. - Proficiency in lead generation - Ability to communicate in clear natural sounding English - Excellent communication and negotiation skills. - Ability to work autonomously and deliver results. - Ability to communicate in clear natural sounding English This will be a part-time engagement, with the expectation of 10-20 hours per week. The goal is to bring in a steady stream of high-quality leads for potential real estat...

I'm seeking a freelance Python developer to improve the performance of a perspective correction script which is currently struggling with shapes that have more than 4 points. I have a Python script that does persp...to start. To run a script, use this command {filename} Example The "source" folder has various source images that have working and non-working cases. I need a solution that will work in most "non-working" cases. This script also has a function that saves points coordinates to JSON (before, after, and applied translations) It needs to be working and save only 4 points. Once a first working solution is submitted, I will make this contest "Guaranteed". Please don't post your code publically so other people will not copy yo...

...unique requirement of collecting data at multiple points in a user's session. Key Requirements: - The form needs to be integrated with Contact Form 7 plugin - Should support multipage logic for better user experience - Collect and store user-provided data including: - Name and contact information - User input and preferences - Additional comments and feedback - Implement a method to save all incomplete form data. This data should be: - Sent to a designated email address - Stored in a specific page inside WordPress dashboard, already configured Furthermore, I require the setup of an export mechanism for this incomplete data, specifically in a CSV format. This CSV should: - Have separate columns for each field to ensure easy data processing - Include time...

...in creating thumbnails for YouTube or other social media platforms Understanding of the real estate and business industry to accurately represent the podcast theme The ideal candidate should be able to create a thumbnail that grabs attention, communicates the podcast's theme, and entices viewers to click and listen. The name of the podcast is "The Next Deal Podcast" Here is a URL to the host Justin Dossey, Vince Hall facebook for a picture of them: , Here is a URL to the guest, Alex Capozzolo facebook for a picture of them: Here is a URL to the google drive with some of the raw video/audio files for context or ideas OR to get portraits of the hosts or guests: https://drive

I'm seeking a skilled video editor to assist in creating a series of Instagram Reels that are both engaging & informative. This will be a batch job, with a requirement of 30 reels for a month's worth of content. Continuous basis ideally. Key Requirements: - Experience w...ability to craft a polished, professional reel is vital. - The content is based on tutorials or how-to guides, so your understanding of structuring educational content in a visually appealing way is crucial. - Being able to add B-rolls, transitions, effects, and substitutes in a way that sustains viewer interest is a must. - Bulk rates are essential, as this is a long-term job with a consistent stream of work. If you're experienced in these areas and can deliver high-quality work consistentl...

...'em. Preferrably Inline editor like Gutenberg. The current setup of everything being at top is a bit old fashioned though completely functional. A block-based system with modern inline editor would be really great. - Shortcuts: It should support shortcuts. Obviously things like bold, italics, and underline should work (duh, it should be obvious). But, we also use CTRL+S in our current system to Save the form via AJAX. The saving functionality is built from our side, just that you should have functionality to pass such key presses our of the WYSIWYG IFrame. - Buttons: We have a lot of our functionality running over TinyMCE, this includes our own tools for monetization, inserting YouTube videos, etc. The code for that already exists from our side. We would just need the WYSIWY...

...check if a new email is in another outlook 365 folder, if there is, save the attached excel file as a csv and rename the csv file the date of the email in YYYYMMDD format and save to a folder in onedrive for business. On successful completion send an email confirming success. >If there is no new email in the other outlook 365 folder, email our info@ email address notifying that it is not present. Repeat the checking process 2 days later until successful Flow 2: If a new email is received use this as a trigger to check if a new email is in another outlook 365 folder, if there is, unzip the attachment using a password, save the attached excel file as a csv and rename the csv files the date of the email in YYYYMMDD format and save to a folder in onedrive fo...

I am looking to migrate my existing Shopify store to WordPress. The primary reason for this is to save costs on monthly fees associated with my current Shopify plan. I'm looking to retain and migrate all the data, including products, customers, and any other essentials seamlessly. The ideal freelancer for this project should be proficient in: - Shopify and Wordpress - Shopify store migration - Data migration and retention - E-commerce platforms The project will involve replicating the current design and functionality of the Shopify store to the new Wordpress site. The freelancer should ensure that the SEO performance is not compromised during the migration. Please note that while the primary reason for migration is cost savings, I am open to suggestions and guidance on how ...

...frameworks to build a responsive-design taxi riding webapp. - Preferred Framework: I'm interested in either Laravel or CodeIgniter, but open for recommendations based on speed and performance considerations. - Design: The site must have a responsive design to ensure usability across all device types. I plan to build ios and android app but too costly around USD3000. So better I build webapp, which save cost budget just USD1000. There will be 2 sites : Driver-Passanger webapp, and admin-panel. And there are too many functions to cover, so build from scratch may take too much time, so better we buy existing template and modify from there. I want to have all basic functions of Taxi Riding booking. And customize refer to If you did Taxi Riding webapp before, kindly se...

Me gustaría asesoría para la elaboración de un VSM de una empresa pequeña de confección textil

...a California-licenced Real Estate Expert Agent along with a professional Interior Designer ASID. I would like to market myself to give away my services as a home stager and Interior Designer to get listings. Something fun very much a Palm Springs vibe with maybe something better than this " List with me and I will stage or redecorate your home for FREE". something like that. I would like you to save an area for a few before and after photos of my work. Toni Schacht Premier Agent Network Inc. [Removed by Freelancer.com Admin for offsiting - please see Section 13 of our Terms and Conditions] Palm Springs, Rancho Mirage, Palm Desert, Indian Wells, Indio, LaQuinta Key Requirements: Fun Bright Palm Springs Vibe, This is to help me get listings. The overall goal of this b...

...throughout the house. I have some ideas of what the network might look like, but I want the guidance of an expert to make sure I don't make any mistakes. My thought is to have the electrician run ethernet cables from each floor to a central location where my modem will be located so I have a hardwired connection on each floor of the house. I would use those ethernet outlets to connect TVs that would stream content from the internet, and I'm also thinking of having a wireless access point on each floor to ensure strong wireless access throughout the house. I need help figuring out the exact equipment I should buy, and to confirm that my wiring plan will work as intended. I might also need help configuring the router and access points to make sure that I have one wir...

...saving. -- Data submission options on exiting the app or through an in-app menu. Key Features: - Voice Input: Enable voice-based input for defect names and comments to enhance usability. - Offline Functionality: -- The app should be capable of loading project data and operating offline. -- Sync capabilities to upload defect data. - Image Compression: -- Compress images before sending to save bandwidth. -- Store full-resolution images locally on the device. - Individual Photo Submission: Send photos to the server individually rather than in batches to manage data flow and server load effectively. - Persistent Project Interaction: After saving a defect, the app should remain within the project view instead of returning to the main menu. Technical Requirements: - Pla...

...healthcare market in Africa will be a huge advantage. This includes an understanding of the regulatory environment, market trends, and the competitive landscape. Your key targets will include: - Increasing sales by a certain percentage: Your role will be pivotal in helping us drive revenue and meet our sales targets. - Generating a specific number of leads per month: I expect you to create a steady stream of quality leads that can be converted into sales. - Expanding our market reach to new regions: You will need to identify and target new regions where we could establish a presence and generate sales. Your work will have a direct impact on our growth and market presence in Africa. I am looking for someone who is proactive, has a good understanding of the industry, and is able ...

We are on the hunt for an expert in LinkedIn advertising. The primary goal of this position is to generate leads and drive a steady stream of entry-level or middle-level Project Manager candidates to apply for positions with our clients. We prefer to work with those who manage likedin campaigns demonstrably with Italian, UK or general EU companies. The successful candidate should excel in the following areas: - Managing and optimizing LinkedIn campaigns - Identifying and reaching targeted audiences, particularly job seekers - Working with a set monthly advertising budget - Transparent communication and reporting of campaign effectiveness If you have a proven record in generating leads through LinkedIn, and have the skills to connect us with job-seeking Project Managers, we'...

I'm looking for a skilled photo editor to help me add designed "save the date" texts to some of my photos. The text style I'm looking for is an elegant one and I have no specific color preference for the text and design elements. The final output should be visually appealing, professional and in line with the elegant text style I'm looking for. Ideal skills and experience for this job: - Proficiency in photo editing software - Experience in text design, particularly elegant styles - Creative flair for creating visually appealing designs - Strong attention to detail to ensure a professional-looking final output

I'm looking to build...in one place for purchase, providing a smooth user experience. - Product Reviews: Customers should be able to post reviews on each product. This will not only offer insights about the customer satisfaction levels but also boost the credibility of my products. - User Account Registration: I also want to integrate a user account system. This will make it easier for customers to track their orders, save their favourite items, and expedite their future checkouts. The ideal freelancer for this project is one with strong experience in e-commerce website design and development, preferably a familiarity with Asian-style aesthetics. They should have a proven track record of integrating a shopping cart system, product review feature, and user account registration ...