Simple java program code jobs
I'm seeking an experienced Minecraft plugin developer to create a custom progressi...custom progression and ability system tailored for PvP. Key Requirements: - Kill-based progression: Players earn 'cores' from PvP kills to unlock various abilities. - Abilities to include: - Combat enhancements (e.g., increased damage, speed) - Special moves (e.g., teleportation, fireballs) - Defensive skills (e.g., shields, damage reduction) Ideal Skills and Experience: - Proficient in Java and Minecraft plugin development - Strong understanding of PvP mechanics and balance - Experience with custom game modes and progression systems - Ability to test and debug effectively Please provide examples of previous work, particularly in PvP-related plugins. Examples Strength SMP P...
...you to handle the full development cycle for a first operational version on Android devices. Key goals • Work with me to refine and document the core purpose of the app. • Translate that purpose into a lean set of features for an initial release. • Design, code, and test the Android application so it runs smoothly on current OS versions. What I’ll provide • My high-level idea and desired outcomes. • Timely feedback on wireframes, feature lists, and builds. What I need from you • Experience building native Android apps (Java or Kotlin). • Ability to recommend best-practice architecture, UI/UX patterns, and open-source libraries. • Clear communication and incremental deliveries (e.g., feature sprints, testable APKs)....
...as SWE-Bench and Terminal-Bench. -Develop prompts focused on code refactoring, code generation, and problem-solving scenarios. -Evaluate model outputs to identify errors, limitations, and failure patterns in reasoning, correctness, and execution. -Design and maintain coding environments used for evaluation and reinforcement learning (RL) pipelines. -Execute coding-specific validation checks using established criteria and tools provided by other annotation teams. -Document findings, evaluation results, and insights to support model improvement and training strategies. -Perform detailed code reviews and annotations for accuracy and compliance. -Work with Python and front-end technologies (JavaScript, TypeScript); potentially with Java, too. -Execute repetitive ...
Freelance BlueYonder WMS Developer (MOCA, SQL, Java) — End-to-End Ownership We’re looking for an experienced freelance or contract BlueYonder WMS Developer to take full ownership of customizing and enhancing warehouse transaction workflows. This is a hands-on role requiring someone who can independently design, implement, test, and support WMS logic in a live operational environment. This is not an integration-only role — the work is focused on modifying behavior inside WMS transactions, including allocation, picking, receiving, and putaway logic. Key Responsibilities Design and implement custom business logic directly within BlueYonder WMS using MOCA commands Extend and enhance existing transaction flows such as allocation, picking, receiving, and putaway Devel...
... Scope of Work: * Analyze the provided APK file * Rebuild or recreate the Android project (if source code is not available) * Generate a signed .AAB file ready for Play Store submission * Ensure the app meets Google Play Store policies and requirements * Develop an iOS version of the app with similar functionality * Assist with basic testing and deployment guidance ## Required Skills: * Strong experience with Android development (Java/Kotlin) using Android Studio * Experience in reverse engineering APKs * Knowledge of Google Play Store submission process * iOS development experience * UI/UX replication skills ## Important Notes: * I currently only have the APK file (no source code) * Freelancer should mention if full rebuild is required * Please share simi...
...application and need the complete build, from UI to final Play Store–ready package. The core scope is clear: • User login and registration • Shopping cart • Payment gateway integration All three features must work together seamlessly, with clean navigation and a modern material-design look. Code should be written in Kotlin or modern Java and structured for easy maintenance, using Android Studio and standard Android SDK components. The finished work should include: – Source code in a Git repository – An installable APK for testing – Step-by-step build and deployment instructions If third-party libraries are used for the cart or payments, they must be well-documented and licensed for commercial use. I will p...
...full-stack developer who can look at my existing Java- and Python-based application, identify where machine learning will add the most value, and then build those features over the coming eight months. Your first task will be a short discovery sprint carried out through TeamViewer: we will walk through the codebase together, map the data flows, and agree on the key machine-learning opportunities. The priority use-case is classification, and it must surface across: • the user interface (smart suggestions and contextual prompts) • backend processing (automated decisions and scoring) • data analytics (actionable insights and dashboards) Once the roadmap is clear, you’ll pick up fortnightly stories in our tracker, write clean, test-covered code...
...full-stack developer who can look at my existing Java- and Python-based application, identify where machine learning will add the most value, and then build those features over the coming eight months. Your first task will be a short discovery sprint carried out through TeamViewer: we will walk through the codebase together, map the data flows, and agree on the key machine-learning opportunities. The priority use-case is classification, and it must surface across: • the user interface (smart suggestions and contextual prompts) • backend processing (automated decisions and scoring) • data analytics (actionable insights and dashboards) Once the roadmap is clear, you’ll pick up fortnightly stories in our tracker, write clean, test-covered code...
...palette, and any other brand assets once they’re ready, so please build with easy-to-swap styling in mind (CSS variables or a well-structured stylesheet are appreciated). The finished site should load fast, display perfectly on mobile and desktop, and be delivered as fully deployable HTML/CSS/JS files I can drop onto my hosting. If you can set this up quickly, keep the code tidy, and make future text or image updates simple for a non-developer, let’s get started....
...palette, and any other brand assets once they’re ready, so please build with easy-to-swap styling in mind (CSS variables or a well-structured stylesheet are appreciated). The finished site should load fast, display perfectly on mobile and desktop, and be delivered as fully deployable HTML/CSS/JS files I can drop onto my hosting. If you can set this up quickly, keep the code tidy, and make future text or image updates simple for a non-developer, let’s get started....
I need a seasoned Java professional who can step in immediately and spend 2–3 hours with me each day. The focus is senior-level mentoring and hands-on help across three areas: reviewing and debugging my current code, shaping brand-new features, and steadily improving what already runs in production. Your guidance will happen live—screen-shares, pair programming, or short recorded walk-throughs—whatever lets us move quickly and keep quality high. Consistency matters to me, so I pay on time for every completed session and appreciate someone who can commit to a reliable daily slot. If you are comfortable jumping straight into existing repositories, spotting issues fast, and suggesting clean, production-ready solutions, I’m ready to start as soon as ...
Looking for Experienced IT Trainers | Nagpur | 1-Month Contract We are looking for skilled and passionate IT Trainers to join us for a 1-month training contract in Nagpur. Accommodation will be provided. Requirements: • 2–3 years of hands-on training/teaching experience • Proficiency in one or more of the following: - C & C++ - Java - Python - DBMS (Database Management Systems) - DSA (Data Structures & Algorithms) Contract Details: • Duration: 1 Month • Location: Nagpur, Maharashtra (On-site) • Accommodation: Provided • Type: Freelance / Contract Ideal Candidate: • Strong communication and teaching skills • Ability to explain concepts to beginners/intermediate learners • Available to relocate to Nagpur for the contract p...
...brand tone. • A dedicated section for our company history so people understand how we grew from a single-truck operation into today’s fleet. • A mission & values page that clearly states the principles guiding our drivers, safety program, and customer commitment. • A contact page that lists our office phone number and physical address only (no form required). The site should look sharp on desktop, tablet, and mobile, load quickly, and be easy for me to edit later—WordPress, Webflow, or another straightforward CMS is fine as long as updates don’t require code. Basic on-page SEO, Google Analytics setup, and clear hand-off documentation will round things out. Once the design is approved, please migrate it to my chosen host and veri...
...handle • Rewrite the existing sketch for the chosen STM32 device, configuring clocks, GPIO, interrupts and peripherals exactly as needed. • Replace the current Arduino-style calls with HAL-based code generated in CubeMX, keeping the program logic identical. • The original sketch drives an OLED via a third-party library; the same display has to work on STM32, so include whatever open-source driver (U8g2, SSD1306 HAL port, etc.) you feel is most stable. • Alongside the source, provide a short step-by-step guide that shows how to: – clone/import the project into STM32CubeIDE – regenerate code if CubeMX settings change – connect the OLED pins and power rails – build and flash the firmware from a clean w...
...MVP website built that lets visitors type a name into a search box and instantly see a dynamic page generated from the underlying data. All content will live in a small database, so new entries automatically create new pages without manual coding. A clean, minimalist interface is important, but the code structure has to be equally tidy—SEO-friendly URLs, proper meta hierarchy, and an ad-ready layout so I can drop in display ads later without redesigning anything. Core scope • Search: a simple, name-based lookup that returns an exact or closest match. • Dynamic pages: rendered server-side from database content, not static files. • Database: whichever stack you recommend as fastest to spin up and scale for a light workload. • Front-end: res...
...instantly 3. Communicate end-to-end capability 4. Highlight cost advantage (via in-house ply & manufacturing) 5. Promote Maywood Finance 6. Enable Instant Quote conversion 7. Attract partners (B2B growth) --- 3. MAIN NAVIGATION STRUCTURE Top-Level Pages: 1. Home 2. Instant Quote 3. Products & Services 4. Experience Centers 5. Maywood Finance 6. Maywood Manufacturing 7. Maywood Plys 8. Partner Program 9. About Us --- 4. PAGE-BY-PAGE STRUCTURE --- 4.1 HOME PAGE Objective: - Establish brand authority - Quickly explain what Maywood does differently - Drive users to Instant Quote / Consultation --- Sections: 1. Hero Section - Headline: Premium interiors at scale - CTA: Get Instant Quote 2. What We Do (Overview) - Residential - Commercial - ...
...done carefully on a live site, so scheduling and minimal disruption is required. 2. QR Code Order Pickup System Integration We use a QR code-based pickup system for handling customer orders. Current Setup: QR codes are generated using: Plugin District – Order Barcodes (Reference: ) Pickup management is handled using: Local Pickup Pro plugin Desired Functionality: When a QR code is scanned, the handler should immediately see the corresponding order details. The system should clearly indicate whether: The order is ready for pickup The order has already been picked up Once an order status is updated in WooCommerce (e.g., marked as picked up), scanning the QR code should reflect this updated status instantly. Prevent duplicate pickups or confusion by
...the tools they need to keep those listings current. The stack must stay within HTML, Java, PHP and MySQL so that I can run everything locally on my laptop (XAMPP/WAMP is fine). Core user roles • Students – browse and search internships, download study resources and review paid interview-prep details. • Companies – register / log in, post new internships, edit their own listings. • Admins – add or delete any internship and upload study resources; no company-account management features are required beyond what companies can already do for themselves. Main sections to build • Internship Opportunities: card or table layout with filters for location, domain and date posted. • Study Resources: simple area where PDFs, slides ...
...and commented. Discord integration A companion Discord bot should read the same database or API endpoints and show: - Current online player count - Individual balance - Total playtime - Blocks broken (per player and global) I’d like simple slash commands such as /stats, /toptime, /topblocks, plus automatic online/offline status pings. Deliverables 1. Server files with all plugins/mods installed and tested on the latest release. 2. Source + compiled JAR for any custom plugins you create. 3. Discord bot source (Node.js, Python, or Java) and a brief setup guide. 4. One-page README covering install steps, database schema, and how to tweak settings. Acceptance criteria The server boots with zero errors, every listed command works for default and a...
I need a QR code system to manage gift distribution for 5000 employees. The QR code will be scanned to mark the gift as claimed. Requirements: - Generate unique QR codes for each employee. - Ensure scanning marks the gift as claimed. - Automatically registers the employee details in an Excel file. Ideal skills and experience: - Experience in QR code generation - Proficient in Excel - Ability to create a reliable scanning system Need this done ASAP.
I need a clean, modern single-page site built with plain HTML5 and CSS3. The focus is a well-structured Home page that adapts smoothly from mobile to desktop, using fluid grids or...can weave it consistently through headings, buttons, and backgrounds. Because this is a beginner-level project, the build should stay lightweight—no frameworks, just semantic markup and neatly organized styles in a separate stylesheet. Code comments are welcome where logic might not be obvious. Deliverables • with responsive layout • reflecting my color palette • Any asset files (images, icons) neatly referenced • Quick preview or link so I can test on phone and desktop If you can turn this around quickly while keeping the code easy to read and extend, let&rs...
...it improves the user experience). Please deliver: • A clean that loads sample images so I can see the result immediately. • An external with clear, well-commented rules. • Optional if you add simple interactivity (fade-in, lightbox, or arrow navigation). • A brief README or inline comments walking me through how to swap in my own photos, change the number of columns, and how to include it in an existing html landing page. This is to go on to a white bg page. Keep everything framework-free—no Bootstrap, no jQuery—so the code stays easy to maintain and drop into any site. Aim for quick load times and sensible semantics (figure, img, figcaption where appropriate). Responsive behaviour is desirable but doesn’t need to be pixel...
I want to strengthen both acquisition results and employee retention by rolling out a focused Training & Development initiative. The core of this program will be hands-on instruction in programming languages—from fundamentals to best-practice coding standards—so our team feels confident tackling real product work. Scope • Audit current skill levels and pinpoint gaps. • Propose a concise curriculum that covers relevant programming languages (include topics such as version control, testing, and clean-code principles). • Deliver engaging live sessions or interactive video modules, supported by practical exercises and mini-projects. • Provide quizzes or assessments to measure learning progress. • Supply post-training resources a...
I’m looking for an experienced Android developer to step in and refine an existing native app. The core build is stable, but it still lacks a reliable, well-structured push-notification system. Your task is to review the current Kotlin/Java codebase, integrate (or repair) FCM-powered notifications, and be sure they respect the app’s current UX flows—no rogue alerts, no missed messages. Once the notifications are live you’ll help me run a quick round of QA on a small device matrix, package a signed release APK, and supply the updated source in Git so I can keep the repository current. Clean commits, clear comments, and a short README on any new dependencies will be part of the hand-off. If you’ve shipped native Android apps before and can demonstra...
...a computer‑science student seeking reliable, high‑quality assistance with coursework assignments. This is not a tutoring request; I need someone to help me with assignments according to provided specifications, with clear documentation and clean, maintainable code. No AI‑generated solutions are permitted. All work must be original, well‑reasoned, and fully explained. There is an opportunity for an ongoing, longer‑term arrangement covering multiple subjects. Scope of Work • Help with programming assignments (languages: Python, Java, C++, etc. as needed). • Write technical reports, documentation, and analysis as required. • Follow exact submission guidelines (formatting, file structure, etc.). • Meet strict deadlines (typically 5 to 6 days per task). ...
I'm looking for an experienced Java developer to create a minimalistic e-commerce website for my startup. The site should include: Core Features: - Shopping cart - Product reviews - Customer account creation Design Style: - Minimalistic Ideal Skills and Experience: - Proficiency in Java and web development - Experience with e-commerce platforms and features - Strong design sense for minimalistic layouts - Familiarity with database management and security protocols - Excellent problem-solving skills and attention to detail Please provide examples of similar work done. Looking forward to your proposals!
I have an existing Java Spring web application that has been running for a few years and now needs a full refresh. The immediate priorities are: • Migrating everything to a brand-new server and hosting environment • Updating all Spring-related code and third-party dependencies to their latest stable releases • Implementing a handful of new features that have been on my backlog The current stack is Spring (Boot & MVC), Maven, MySQL and a small front-end in Thymeleaf with a sprinkle of jQuery. The code sits in Git and deploys on a Linux VM, but I’m open to Docker or any modern CI/CD improvements you can suggest during the move. I’ll supply SSH access to the new host plus the existing repository as soon as we start. Deliverables 1. ...
I need a Spring Java application primarily for database management, with a content management system (CMS) as the web interface. Essential Requirements: - Database management capabilities - Content Management System (CMS) interface Ideal Skills and Experience: - Proficiency in Spring Framework - Strong experience in database management - Expertise in developing content management systems - Familiarity with web application security, especially user authentication and roles Please provide examples of similar projects completed.
I need a Spring Java application primarily for database management, with a content management system (CMS) as the web interface. Essential Requirements: - Database management capabilities - Content Management System (CMS) interface Ideal Skills and Experience: - Proficiency in Spring Framework - Strong experience in database management - Expertise in developing content management systems - Familiarity with web application security, especially user authentication and roles Please provide examples of similar projects completed.
I have a small desktop application that is only compatible with Windows. Currently, first-time users (actually just me) must purchase and bind an authorization code to run it. I want to completely remove this step. The price is not the final price First of all, I want to clarify that I do not have the source code.
...the system scales beyond the ESP32’s native GPIO count. • Build an intuitive Android app that discovers the ESP32 on the local network, shows the live video feed, displays face-recognition feedback, and lets me toggle each light channel individually or in groups. Additional notes – Code should be well-structured, commented, and delivered in a Git repository. – The Android client may be native (Java/Kotlin) or built with a cross-platform toolkit, provided performance stays smooth. – I’ll need simple instructions for flashing firmware, wiring the relays and shift registers, and compiling/running the mobile app. – All libraries and frameworks used must be open-source or otherwise free for commercial use. Once everyth...
... Outlook receives an email → the program checks it against my templates (subject line, body markers, or both). 2. When a template match is found, key values are extracted (e.g. request ID, dates, status, comments). 3. The program connects to the database, locates the relevant record or creates a new one, and writes each value into the correct label/column. Requirements • Must run on Windows Server as a service or scheduled task; no cloud components. • Compatible with current Microsoft 365 desktop Outlook (MAPI or Graph API via local auth is fine). • Template set should be editable by me without recompiling—JSON, XML or an easy UI works. • Clear logging: matched template name, data captured, DB action performed, success/error. ...
I have a small desktop application that is only compatible with Windows. Currently, first-time users (actually just me) must purchase and bind an authorization code to run it. I want to completely remove this step. The price is not the final price
...from the app (think user records, content updates, simple analytics, and basic configuration toggles). A clean dashboard with standard authentication is enough; nothing overly complex for now, but it should be built with an eye toward expanding features later. Deliverables I’d like from you: • A rebuilt APK (or AAB) with the improved UI and resolved bugs • Source code commits reflecting every change, compatible with the current Android Studio setup • A functional, browser-accessible admin portal tied into the existing back-end (or a lightweight back-end if one is needed) • Brief setup notes so I can deploy the portal on my own server and publish the updated app If you’re comfortable operating in the usual Android toolchain (Kotlin/...
...logic, and screen-by-screen mock-ups are ready; the remaining step is transforming them into a smooth Android game and pushing it live on Google Play. The build can be in Java, Kotlin, Flutter, unity—whichever stack lets gameplay feel most responsive while keeping future updates straightforward. The visuals only need to replicate my mock-ups faithfully; you are free to optimise under the hood for performance and reduced APK size. Core functionality to implement: • Google Play Games Services leaderboard so students can compare scores. • Secure, device-synced progress tracking that survives reinstalls. • Simple multiplayer (turn-based or real-time) for puzzle races. Additional needs: • Automatic language switch based on the player&...
...retirement of software systems. It goes beyond just writing code to solve complex, real-world problems through efficient, scalable, and secure digital solutions. Coursera Coursera +3 Here is an overview of what is required in software engineering, broken down by key phases and responsibilities: 1. The Software Development Life Cycle (SDLC) Software engineers follow a structured process to ensure quality and reliability: Planning & Requirement Analysis: Defining project goals, user needs, and technical constraints. Design & Architecture: Creating blueprints for the system, including database design, system architecture, and user interface (UI) layouts. Implementation (Coding): Writing the actual code using languages like Python, Java, C++, JavaScript, or S...
I need a thorough code review of my full-stack React application. The code has been generated with Lovable and Claude Code, and reviewed by Sonar. The review should focus on: - Code Efficiency: Optimize performance and reduce complexity. - Security Vulnerabilities: Identify and mitigate potential security risks. - Coding Standards: Ensure adherence to industry best practices and coding standards. Ideal Skills and Experience: - Proficiency in React and full-stack development - Strong background in code review and optimization - Expertise in security best practices for web applications - Familiarity with industry coding standards and best practices Please provide examples of similar work done and your approach to this project.
...users can browse, search, and favourite players, then dive into up-to-date attributes, season numbers, and historical records. You will handle the complete Android app development cycle: coding the UI in Kotlin or Java through Android Studio, wiring it to the data source I provide (JSON/CSV or a simple REST API), and packaging a signed APK ready for the Play Store. Clean architecture, material-style design, and efficient local caching are important so lists feel instant even on mid-range devices. Deliverables • Fully functional Android APK • Complete, well-commented source code • README or short video showing build/run steps and how to swap the stats feed Acceptance criteria • Player list loads in <2 s on first launch over 4G •...
...need a cohesive set of launch pieces that all feel warm, down-to-earth, and unmistakably rustic. Here’s what I’m after: • Invitation design – the hero piece. Think textured backgrounds, vintage-inspired type, and a palette that captures country elegance. Final files should be print-ready (CMYK PDF) plus a web-optimised PNG/JPG and the original source file (InDesign or Illustrator). • Event program – a matching multi-page layout (cover, schedule, speaker bios, sponsor page). I’ll supply copy; you weave it into the same rustic look. Print-ready PDF plus editable source. • Marketing materials – social media graphics (FB/IG), an email header, and an A4 poster. All should extend the invitation’s style so everything feels ...
I need a QR code system to manage gift distribution for 5000 employees. The QR code will be scanned to mark the gift as claimed. Requirements: - Generate unique QR codes for each employee. - Ensure scanning marks the gift as claimed. - Automatically registers the employee details in an Excel file. Ideal skills and experience: - Experience in QR code generation - Proficient in Excel - Ability to create a reliable scanning system Need this done ASAP.
I’m rolling out a new feature that touches both ends of our stack. On the backend we run Java 21 with Spring Boot micro-services, alongside a small Node.js/Python layer that exchanges events through Kafka. The frontend is split between an older Angular module and a newer React interface. The job is to design and code the complete feature, wiring it cleanly into every affected service and UI surface. You will: • Extend (or create) the relevant Spring Boot endpoints, making sure they publish and consume the right Kafka topics. • Update the Angular dashboard and the React SPA so the user experience is seamless across both frameworks. • Keep code idiomatic, unit-tested, and pushed to our Git repo via pull requests. Acceptance criteria • A...
...entirely in Python that is misbehaving, and I need another set of eyes on the code. The core logic is already in place, but certain functions crash unpredictably and performance has taken a hit since the last update. Your task: • Identify and isolate the root causes of the current errors. • Patch the bugs without breaking existing features. • Clean up any obvious performance bottlenecks you find along the way. • Provide a concise report outlining the fixes and any recommendations for future refactoring. The project is strictly about debugging—no new features required—so I expect focused, well-documented commits and clear communication as you work through each issue. If you are comfortable stepping through Python code, profiling troub...
...I need an experienced Android developer who can dive into the existing codebase, trace the root cause, and push a clean, well-documented fix to Git (or your preferred VCS). Scope of work • Review the current Kotlin/Java code (the project uses standard Android Studio tooling). • Identify why the Name and Referral No. are not updating or showing correctly. • Implement a solid fix, test it across the latest Android OS versions, and supply an APK or bundle for verification. • Leave concise inline comments so future maintenance is straightforward. Deliverables 1. Updated source code with the bug resolved. 2. A brief change-log summarising what was altered and why. 3. A compiled release-ready APK/bundle proving the issue is gone. Acceptance criteria...
I will create your matrimony app in 6 core sections 1 milestone only demo part not give you the code
I need a clean, modern single-page site built with plain HTML5 and CSS3. The focus is a well-structured Home page that adapts smoothly from mobile to desktop, using fluid grids or...can weave it consistently through headings, buttons, and backgrounds. Because this is a beginner-level project, the build should stay lightweight—no frameworks, just semantic markup and neatly organized styles in a separate stylesheet. Code comments are welcome where logic might not be obvious. Deliverables • with responsive layout • reflecting my color palette • Any asset files (images, icons) neatly referenced • Quick preview or link so I can test on phone and desktop If you can turn this around quickly while keeping the code easy to read and extend, let&rs...
**I'm hiring one appointment setter. Commission only. £750 per call closed that shows.** Here's the situation. We run a coaching program for coaches and consultants doing £15–25K/month. They have clients, proof, and an audience — but no system to turn that attention into qualified sales conversations. That's the gap. That's what we fix. The program is built and delivering. I have leads coming in that I can't get to fast enough because I'm focused on content and delivery. I need one person to start conversations, qualify prospects, and book them onto a call with me. That's it. You don't close. You set. **What the role involves:** - Creating a list. - Reaching out to potential prospects. - Starting and managi...
Project: Native iOS App Development (Phase 1 MVP) for MyDEAP Timeline: 4–5 weeks Platform: iOS & Android (Swift + SwiftUI) and Katlin + Java I am looking for a native iOS and Android developer to build Phase 1 of the MyDEAP mobile app. The backend, APIs, authentication, and SSE chat endpoints are already fully implemented. I need a developer who can build the mobile layer cleanly and professionally. Phase 1 – MVP Scope 1. Authentication (AWS Cognito) Email/password login using AWS Amplify SDK Social login: Google, Facebook, Apple Sign‑In Secure token storage + automatic refresh Tier-aware session using cognito:groups 2. AI Chat (Core Feature) SSE streaming chat (POST /api/chat/stream) Token‑by‑token rendering of delta events partial_sources → source citation ...