Arquitectura de software Jobs

I require a Warehouse Inventory Management Software to efficiently track, manage and report on our inventory. Key Features: - Real-time Inventory Tracking: This is essential for us to maintain accurate stock levels. - Reporting and Analytics: We need the software to generate insightful reports on inventory trends, stock levels, and other key metrics. User Base: There will be a limited number of users accessing the software, specifically 1-10 users. Ideal Skills and Experience: - Proficiency in developing inventory management software - Strong background in real-time tracking and reporting - Experience in creating user-friendly interfaces for non-technical users would be a huge plus

I am in need of a JavaFX expert to help me create a data visualization application. The main aim of the application is to visualize data in a graphical format. Key Requirements: - The application must be compatible with Windows - The main function of the application should be data visualization - The data visualization should include the ability to paste array lists Ideal Skills and Experience: - Proficient in Java and JavaFX - Strong understanding of data visualization techniques - Experience with creating GUIs in Java - Knowledge of array handling in Java Please note that the primary task is to create a JavaFX application to visualize data and allow for front-end pasting of array lists. Your experience in these areas will be crucial for the successful completion of this project.

I need a skilled Solidity developer to work on my existing smart contract. It has some functionality issues that need to be resolved, and it's also facing deployment errors. Your expertise in both troubleshooting and deployment is crucial for this project. Key Tasks: - Identify and fix the smart contract's functionality issues - Resolve any deployment errors that are preventing successful deployment While I didn't specify a particular optimization goal, I'm open to suggestions on how the contract could be optimized. This could include reducing gas fees, improving transaction speed, and enhancing security measures. Feel free to provide your own insights and recommendations in this area. Ideal Skills and Experience: - Proficient in Solidity programming language - Exten...

Hi, I'm searching for a developer who can make a custom quotation system inside my WP website. This tool has to do retrieve data from my woocommerce products and display them inside a new page. These are the specifics: The products in the website are simple ad variable. They have some custom fields added with ACF. The main task is to create a new page that allows the user to go through 3 steps. In step 1 the user can choose: Brand, Model, Setting via a drop-down menu. In step 2 choose: Total KM, Duration, Condition, Change. In step 3 show Price, Inventory and Delivery Time. This data must be related to the variants of the individual products therefore show only the corresponding variant in the corresponding drop-down menu also in WooCommerce. This page has to be accessible only by ...

Hi, I'm trying to update my workflow. I currently manage a lot of images, and I need to do the following: 1) Bulk scan and assess the images for quality. In the past I've used but this isn't the most accurate method. Sometimes it will miss images that are extremely pixelated and blurry, or filter out good images by mistake. I'm not sure if I should be using something like Amazon Rekognition, Google Cloud Vision, or Microsoft Azure instead? Or if I can save money and still get good results with a local option like OpenCV? I guess it depends on speed and accuracy. 2) I'd also like to be able to scan images in bulk and detect any text. Same question as far as whether or not I can save money by doing this accurately with OpenCV or something else? Or if I shou...

Hello, I'm in need of a professional to create an embedded data acquisition module. This module's primary purpose will be to monitor and collect data. The module will be primarily responsible for collecting analog and digital IO data, with a focus on 0-5V range signals. Ideal skills and experience for the job: - Embedded systems development - Proficiency in collecting and managing analog and digital IO data - Experience with 0-5V range signals - Ability to create a robust, reliable and efficient data acquisition module The successful candidate will be able to deliver a module that can effectively monitor and collect data, and ensure its seamless integration into the system.

I'm looking for a skilled developer who can create a sophisticated algorithm that excels in the stock market and is designed for day trading. The algorithm should be based on analyzing price action. Key requirements: - Proficiency in developing trading algorithms, specifically for the stock market. - Strong understanding of day trading principles and strategies. - Ability to analyze and prioritize price action data for effective trading decisions.

Artificial Intelligent developer required ChatGTP-4 SAP experience required API developer Odata and REST skills SAP Integration required Must be an expert with XML -Authorizations -Risk Management -Process Controls I required a chatGTP bot created and data should be extracted and presented in XML format I need a proficient AI chatbot developer with exceptional knowledge of SAP and Risk Management. This AI chatbot is intended to interact with my company's customers and perform the following tasks: - Accurately answer frequently asked questions - Give dynamic product recommendations matching customer preferences or needs - Guide customers through risk management processes Although I am open to suggestions, my preferred platform is Chat. This project calls for a skilled deve...

We are in search of a pre-built Duel App Android APK that is ready for immediate use. The app should be fully functional and feature-rich, allowing users to engage in duels with ease. Key Requirements: Android APK: The app should be in the form of an Android Package (APK), ready for installation on Android devices. Duel Functionality: The app should facilitate duels between users, with options for various game formats and rules. User Interface: A user-friendly interface with intuitive controls and appealing visuals. Performance: Smooth performance with minimal lag and reliable functionality. Security: Ensure user data privacy and security measures are in place. Please provide demo of your existing Duel App APK, including features, functionalities, and any customization options available...

I'm looking for a skilled Python programmer to assist in creating a metrics system for my data analysis project. Below are the key aspects of the project: - Data Type: The project will primarily involve the processing and analysis of text data. Prior experience with this data type is a definite advantage. - Goal: The main objective of this project is to perform in-depth data analysis. I need the freelancer to assist in developing metrics and calculations for the data. - Deliverables: The final output should be presented in a report format. Ideal skills for this project would include expertise in Python, data analysis, experience with text data, and the ability to create comprehensive reports. I want to write a python code for the following calculation of Code Synchronization ado...

I require a proficient developer to construct a Telegram IMEI Check Bot that connects seamlessly to my IMEI unlock website, Dhru Fusion API, and PHP API. I'm seeking a well-structured bot that provides: - IMEI Unlocking: The bot should offer this service by extracting the required data from my website. This feature should be easy to use by the bot's users and efficient. - One-Time Password (OTP) Authentication: I prioritize the security of user data. Therefore, an OTP solution is necessary, prompting users for authentication during use. - Interface with Dhru Fusion API: The Bot should interact efficiently with the Dhru Fusion API, capable of: • Sending unlock requests • Querying server status • Fetching service info/results Giving customers account b...

I'm looking for an Excel and VBA expert to help streamline my workflow and boost productivity. You'll be responsible for: - Automating repetitive tasks: I need you to develop efficient scripts that will handle routine operations in the spreadsheets, eliminating the need for manual intervention and enhancing the overall efficiency. - Crafting custom functions: The custom functions I require are complex and involve external data sources. Your role will involve creating these functions effectively, ensuring they are accurate and function seamlessly within the Excel environment. The ideal candidate will have extensive experience in Excel, VBA, and creating complex custom functions. Solid understanding of data analysis and automation is crucial for this role. Your main goal would b...

I'm looking for an expert Flutter developer to build a fleet management app that focuses primarily on vehicle tracking. This should include: - Real-time tracking: I want to be able to view on a map where each vehicle is at any given moment. You should have experience in implementing GPS or similar tracking systems. - Dispatching orders: The application needs to feature automated assignment of orders to optimize the utilization of our fleet, without the need for human interaction. Having experience in building algorithms for efficient order dispatching would be ideal. - Extensive fleet management experience: As this is quite specific, I would prefer someone with prior experience in developing fleet management apps or someone who can demonstrate a strong understanding of logistics an...

✔Project Overview: We are seeking to develop a program that reads QR codes from multi-page PDF files and image files provided by our clients and extracts that data into CSV files. Due to format differences, existing AZURE OCR API have not met our requirements, necessitating a custom solution. ✔Specific Requirements: 1. Ability to read QR codes from multi-page PDF files, multiple PDF files, and image files such as JPGs and PNGs. 2. Capability to analyze the data within the QR codes and format it into CSV files. 3. Development must be done in either Python or JavaScript. ✔Skills Required: -Experience in development with Python or JavaScript. -Knowledge of OCR technologies and QR code reading techniques. -Experience in handling PDF and image processing. ✔Project Goals: The goal is to effic...

I'm aiming to create an education-based web app using Flutter. The primary functionalities should encompass high-quality user authentication, and a reliable system for multiple choice question tests with an automated result generator. Ideal candidates for this project would have: - Expertise in Flutter web development - Proven experience in building secure and efficient user authentication systems - Past involvement in e-learning platforms or education-based applications - The ability to create an automated multiple choice question and result system Our primary target audience are students and professionals, thus, an understanding of relevant UI/UX design principles would be advantageous.

I’m in need of a skilled freelancer proficient in C, C++, and Python programming languages. Your primary role will be to develop a software application from scratch. Having a strong background in these languages is crucial because the software will be built simultaneously in all three languages. Ideal Skills: - Advanced knowledge in C, C++, and Python - Proven experience in software development - Strong problem-solving skills - Ability to work collaboratively and independently Please note that code optimization was not highlighted as a priority for this project. This should allow you to primarily focus on building a functional and reliable software application.

I'm looking for a skilled software engineer to create a self-learning automation software that will handle my assignments and projects while I'm away. Key Responsibilities: - Develop a self-learning automation software - Automate repetitive tasks that are typically part of assignments and projects - Ensure the software is designed for self-learning to improve its efficiency over time Preferred Skills: - Proficient in Python, familiar with AI agents - Experience in developing self-learning software preferred - Knowledge of LLMS (Local Learning Management System) is a plus The main goal of this project is to create a software that can independently handle my assignments and project tasks, continuously improving its efficiency through self-learning. The ideal candidate should ha...

I am looking for a skilled software developer to create a comprehensive software for my Kandura shop. The software must be equipped with the following features: 1. Client Details Management: The software must include a client details management feature. However, it's more than basic contact info storage. You should be able to create custom fields for additional client details, allowing us to capture all the necessary information about our clients. 2. Purchasing History Tracking: An integral part of the software is tracking our client's purchasing history. For this aspect, we require the software to generate detailed invoice copies. This will not only help us track sales and revenue but will also provide valuable insights about our client's buying habits. 3. Inventor...

CRUD 2 tables only. Long term project.

As a business expert, I need a detailed and functional document which outlines the features and functionalities of a digital platform I'm envisioning for stock traders. This platform aims to significantly enhance the trading experience for users and facilitate their access to a wide range of tools and information. Key Features: - Real-time Market Data: Users should have access to live and accurate market information to make informed decisions. - Automated Trading Tools: The platform should offer various automation features for traders to streamline their trading activities. - Portfolio Management: A system for users to efficiently manage and track their investments. - Technical Analysis Tools: The platform should provide advanced tools for users to perform technical analysis on stoc...

I am seeking an experienced Software Developer to bring my business idea to life. This Software will be designed to provide services to a broad spectrum of consumers. Key skills include: - Proficient in various software development methodologies - In-depth understanding of user interface - Ability to translate my ideas into functional software Ideal candidates should possess a strong track record in creating customer-centric software from conception to completion. Your ability to offer innovative and creative technological solutions could help craft a service that will fully engage our user base.

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

I'm looking for a professional who can undertake tasks in machine learning and Android app development. Project name: Image Captioning(preferably using Tramsformer encoder decoder and self attention with coco/flickr dataset). A model to caption any image and develop a very simple android app which captures an image and then speaks out the generated captions loud. - Machine Learning Tasks: The ML engineer will be responsible for data preprocessing, model training, and model evaluation. - Android App Development: You'll be tasked with creating a simple Android app that can capture images and then use the trained ML model to convert any text in the image to speech. - Also perform unit testing and relevant metrics like(bleu scores etc) Ideal candidates should have: - Proven exper...

I'm in need of a multi-platform application that will facilitate the operations of shared taxis moving from point "A" to point "B". This shared taxi will be available for requests until 4 passengers have been accommodated, after which it will proceed to the destination. Key Features: - User Registration: The app should allow for easy and secure user registration. - Shared Taxi Request: Users can request for a shared taxi through the app. - Real-Time Location Tracking: The app should be able to track the shared taxi in real-time, allowing users to know the exact location. - Passenger and Driver Monitoring: I would like the ability to monitor both passengers and drivers for safety and service optimization. User Interaction: Users should be able to request a shared ...

I am seeking a competent software developer to create a program that integrates a robot and RFID reading system, primarily for automating inventory management in a warehouse setting. The successful freelancer should strongly grasp robotics, RFID technology and software development. Their responsibility will be developing a software compatible with both Windows and Linux operating systems that smoothly facilitates communication between the robot and RFID reading system. Requirements: - Expertise in robotics and RFID technology - Proficient in coding for both Windows and Linux systems - Experience in developing software for inventory management - Understanding of warehouse processes and operations Goal: The objective is to make our inventory management more efficient, so the ...

I am looking for a skilled developer to port an existing monitoring program from Windows XP, written in C#, to a modern Windows version or to Linux. The program is currently written in C# Key Features: - Real-time monitoring: The program should be able to continuously monitor and display real-time data. - Data visualization: It should have the capability to present the monitored data in a graphical format. - Data logging: Record selected inputs/outputs at predetermine interval - Error logging: The program should be able to log any errors or issues that occur during monitoring. - Control: The ported program should support control features like: - Adjustment of monitoring settings: The user should be able to modify the monitoring parameters. - Remote control of monitored devices: The p...

I'm looking for a skilled developer to migrate our Java-based desktop application onto the AWS cloud. The project involves: - Hosting the existing Java-based desktop application on an AWS cloud instance. - Implementing a multi-user access system. - Integrating a MySQL database component. - Developing a Python-based web interface for users to change settings. The ideal candidate should have: - Proficiency in Java, Python, and MySQL. - Prior experience with cloud hosting, particularly on AWS. - Knowledge of user access control systems, particularly Discretionary Access Control. - A good understanding of desktop-to-cloud migration. - Strong communication skills and attention to detail. We need a developer who can take a Java based desktop application and host it on a cloud instant...

Description: We are seeking a talented software developer who can assist in the development of my platform. The ideal candidate will have experience in software development (language) and be passionate about creating high-quality Responsibilities: Collaborate with us to design and develop the platform . Write clean, efficient, and maintainable code. Test and debug software to ensure functionality and performance. Work on constructive feedback. Stay up-to-date with emerging technologies and best practices. Requirements: Proficient in Java, J2EE, Spring MVC, Spring Core, Spring boot and JavaScript. Excellent knowledge of Relational Databases, SQL and ORM technologies (JPA, Hibernate) 5+ years of hands-on experience in designing, developing, testing and maintaining RESTful APIs and Microser...

I need a custom software created for my Windows operating system. I will be calculating my window treatments based on different chart numbers, sizes and additional add-ons. Here are my specific requirements: - Function to add pictures of products: I need a 'Browse and Select' option for adding pictures of products to the application. The images should be easy to view and edit within the interface. - Display of window treatment calculations: The software should be designed to automatically recalculate and display the changes, every time I make modifications to chart number, sizes or add-ons. There should be no need for manual commands. Ideal Skills & Experience: - Proficient in Windows software development - Prior experience in developing software for interior design or rel...

Comment pensez-vous à un projet sur la littératie financière pour les jeunes adultes? Ça pourrait inclure des ateliers sur la gestion de l'argent, l'épargne, les investissements, etc.

I'm looking for a skilled developer to create a P2P program specifically designed for Binance Merchant. The main goal of this program is to facilitate fast and secure transactions. Key Components: - The program should primarily focus on conducting transactions in a speedy and secure manner within the Binance Merchant ecosystem. - A user-friendly GUI interface is essential for the program. This will enable easy navigation and interaction for users as they conduct transactions. - The program should be compatible with the Windows operating system. It should run seamlessly and efficiently on this platform. Ideal Skillset: - Proficiency in blockchain technology and understanding of P2P transactions is crucial. - Experience in developing GUI interfaces is a must. - A solid background in s...

Hello, I'm looking for someone who can fix an error in a custom plugin for me. ? Requirements: Need an experienced WordPress developer for making adjustments to an existing data scraping plugin. The task to perform is to skip/skip cloudflare so that the plugin can extract the data without problem I explain: I have a custom plugin in WordPress, which extracts information all right, it turns out that the website activates Cloudflare on its side and that is preventing the plugin from being able to extract the information correctly. What I need: I'm looking for someone who can modify the plugin or do what is necessary so that it skips or bypasses Cloudflare and can extract the information without problem. ? Budget: $10 - $50 - I need it no later than Monday. For an expert it w...

I need a trading bot designed to work with the Ethereum cryptocurrency on Base network on the Uniswap V2 platform. This bot should be set to automatically buy and sell ETH at specific intervals without human intervention. Key Features: - Automatic Buying/Selling: The bot should automatically execute buy and sell orders based on the parameters set - Time Interval Trigger: Trading actions should be triggered based on specific time intervals, and not based on price or trend. Ideal Skills and Experience: - Proficiency in Ethereum and Uniswap V2 - Experience in designing and implementing trading bots - Understanding of automated trading strategies - Proven track record of bot development in the crypto space - Ability to deliver a reliable and secure trading solution. The selec...

As a complete beginner in Roblox Studio, I need one-on-one tutoring to help me get started. I am interested in improving the following areas: - Scripting - Building - Game design Since I prefer project-based learning, I would like the tutor to use practical examples and tasks to reinforce the concepts. Do you have experience in teaching beginners? I am looking forward to learning from an enthusiastic expert who can guide me through this process. The ideal candidate should have strong skills in scripting, building, and game design in Roblox Studio. I am eager to turn my ideas into exciting reality. Let's create together!

I am seeking a Python C++ programmer who can assist me with the D400 Terminal. The primary task involves cloning software from a functioning D400 Terminal to a non-working one (because it ask for program). Ideal skills and experience: - Proficient in Python and C++? - Prior experience with software cloning - Familiarity with D400 Terminal (wich is a tool/machine/screen for concrete truck). Manual for D400 Terminal:

I am looking for an experienced individual to help me create an interactive web platform that will serve as a guide to various types of machine learning algorithms. The purpose of this guide is to cater to beginners and intermediate level practitioners who have a basic understanding of programming concepts. The ideal candidate for this job would have: - A strong understanding of machine learning algorithms and their practical applications - Experience in creating interactive web platforms - The ability to simplify complex concepts for a beginner audience - Good programming skills, as some technical programming knowledge will be required for creating the interactive elements Key requirements for the interactive web platform include: - Clear, concise explanations of various machine learnin...

I'm looking for a talented app developer who can create a utility tool app to be used on both iOS and Android operating systems. This project requires the ideal candidate to balance user-friendly design and advanced technical features. Here's the skillset that would make you the ideal match for this project: - Demonstrated experience in cross-platform app development - Mastery in creating user-friendly designs - Knowledge and experience in advanced technical app features - Experience in creating utility tool apps Your role will include not only the development of the app but also working alongside me to create a balance between user-friendly design and advanced technical features. If you believe your skills and experience align with this project, please bid outlining relev...

I am in need of a skilled professional to develop software. We have all barcodes in EAN formats in excel (14-15 digits format) Everyday we sell products online. We would like to be able to find a certain barcode on a shelf as we have many EANS on the same shelf. We have bought a wireless handheld scanner. So we would like to be able to transfer those eans (EAN ) to use this wireless scanner to find a certain product on shelf. Or maybe not transfer but to export some batch of eans everyday in order to find them faster everyday ob the shelf.

I'm seeking an experienced FiveM developer with proficiency in debugging and performance optimization of scripts. The tasks required include: - Fixing bugs in existing FiveM scripts. Deliverables should work seamlessly without causing system errors or crashes. - Optimizing the performance of these scripts. This includes enhancing their efficiency so they do not negatively impact server performance. There will be about 15 purchased scripts that will need to be integrated into the site. Please include examples of previous FiveM script debugging and optimization projects in your proposals. If you do not, you will be 100% ignored.

I am looking for a professional to install the latest stable version of Odoo on my self-owned VPS. Key Requirements: - Installation: I require the latest stable version of Odoo to be installed on my VPS. - Access: The installation needs to be done through AnyDesk, hence I would require you to have this software available. Ideal Skills and Experience: - VPS: Prior experience installing and configuring Odoo on various VPS providers. - Odoo: Proven track record of setting up Odoo with its best practices. - AnyDesk: Familiarity with using AnyDesk for remote installations. Please respond with your relevant experience and availability for this project.

We are in a stage to develop Saas project for marketplace sellers. We are looking for senior full stack developer who has especially saas development, API integrations and so on. Project details will be shared after reference works of candidated is evaluated. Thanks,

I'm looking for an experienced app developer to create an intuitive DNA trait predictor tool for cats. This tool will predict the offspring's traits based on the user's input of the parent cats' traits. Features to be included in the application are: - Fur color prediction - Eye color prediction - Prediction of dilute traits - Pattern prediction - Silvering prediction - Dominant White & White Spotting prediction - Agouti prediction The design of the user interface involves the use of drop-down menus for trait input. The ideal candidate should have previous experience in developing similar applications and an understanding of genetic trait prediction will be a plus.

I'm seeking a Google for Education developer to customize the platform for our specific needs. - I need scripts to automate attendance tracking, generate custom reports, and customize the notification system. - I want to explore enabling non-domain users to function as teachers. - A master calendar feature is also required. It is somewhat critical that non-domain teachers can access the platform. The ideal candidate will have extensive experience with the Google for Education platform and be proficient in scripting and UI customization. The ability to work with a diverse team and understand the educational needs of teachers would be a strong advantage. Please share your experience in this area and how you would approach this project. Thank you.

**Project Title:** Transfer and Enhance PHP/Mysql/Ajax Team Organisation Tool to Flutter Web App **Project Description:** We are seeking a skilled developer to assist in migrating an existing PHP/Mysql/Ajax Team Organisation Tool to Flutter, with the aim of releasing it as a web application. The primary objectives of this project include implementing a robust user authentication system, enhancing work organisation capabilities through calendar events, introducing user profile management for self-updating special user data, incorporating team management by assigning role models such as Teammember, Teamorganiser, Controller, Boss, and Admin, adding communication options to send team emails, chats, SMS, and WhatsApp messages, including timestamp functions for each team member with a summary ...

I'm looking for a developer to create a simple, intuitive CRM system tailored for my handyman business. Essentials for this project are: - A comprehensive Customer database - Appointment scheduling feature - Efficient Task management system Integration with WhatsApp is a must, and should include the ability to: - Send automated messages - Receive and reply to messages Additionally, the system should have an interactive order form where customers can provide: - Service options - Quantity/measurements - Preferred date and time - Price per item Ideal candidates for this project will have proficiency in CRM development, an understanding of the service industry, and experience with WhatsApp API integration.

I'm in need of a developer to craft a market maker bot for Solana memecoin trading on the Raydium DEX. This bot should aim for a market cap increase via intensive buy and sell operations. Key Requirements: - Experience with Solana-based Dapps and developing trading bots. - Familiarity with Raydium DEX's API and interface. - Can implement a market-making strategy focused on aggressive buying and selling. Desired Skills and Experience: - Strong background in Solidity or other Web3 compatible languages. - Experience in working with DEXs, preferably Raydium. - Understanding of cryptocurrency market mechanics. - Ability to work under tight deadlines. This project will need continuous optimization and potential for ongoing work for the right candidate. Therefore, familiarity with...

I represent a transport company primarily dealing with road logistics. I am looking for a competent freelancer to design a tailored carrier package software for our business to streamline our operations. Key Features: • Automated Booking • Real-time Tracking • Transportation Management System The software needs to be compatible with and optimized for Windows operating systems which run across all our devices. Skills and Experience: • Exceptional programming skills in developing software for Windows • Proven experience in designing and implementing automated booking and tracking systems • Familiarity with transport management systems in a road transport environment • Knowledge of the logistics sector will be a definite plus. Please attach a portf...

We looking for mvp creative to build mvp for users

I need a cloud web application that's capable of: - Import customers lands based on GPS coordinates - Each land should be capable to hold information about it (fertilizing, used machinery, ...) - Utilizing the Sentinel Hub satellite maps API - Showing normal map layer - Providing a feature for customers to create a vegetation index analysis - Showing real-time weather forecast information through a widget - Export analysis to shapes for different terminals in tractors and machinery The application will have different logins for different customers. Ideal skills and experience for this job include: - Proficiency in web application development - Experience with satellite maps APIs, specifically Sentinel Hub API - Familiarity with data analysis, particularly in creating vegetation ind...

I'm seeking a skilled C/C++ developer with a focus on Windows compatibility for a project to update and fix existing software. Key Requirements: - Experience with C/C++ programming for Windows OS - Strong problem-solving skills to fix existing software issues Please note that the scope of the project does not currently involve integration with external systems or libraries.