Ffmpeg sdk linux jobs

skilled ffmpeg expert to work on a live transcoding project. - CMS should be built in laravel. it should use nginx for hls streaming with user pass and ip restriction protection. it should have all encode decode options for h264 and h265 with cuda / nvenc encode /decode i have system wit 4x rtx quadro 4000 so the system should have also option to select from wich gpu wich channels are going to transcode. it should have realtime datalogics like incoming outgoing network metrics realtime each gpu utilization of encoder/decoder graphic based utilization of ram and cpu. page with show all live streams/offline streams with options restart stop delete edit buttons streams should show with realtime datas like uptime speed codec bitrate connected users on stream count. user managem...

I am in immediate need of a seasoned Android developer who can bring a high level of expertise to my project. Key Responsibilities: - Build, test, and refine Android applications - Debug and resolve technical issues Ideal Skills and Experience: - Proficient in Android system architecture and OS - Prior development experience with complex Android applications - Strong knowledge in Android SDK, different versions of Android This is an urgent requirement, and I would specifically prefer candidates who can start as soon as possible. The successful candidate will be expected to hit the ground running. Knowledge in other functionalities such as geo-location services, API integration or gaming is not mandatory but would be advantageous. Given the urgency of the project, a proven tra...

I'm looking for a focused professional to update my EXPO app from v35 to the latest version. This project will require: - A keen understanding of the EXPO app environment and the ability to proficiently upgrade the SDK version. - Expertise in UI/UX as the task involves enhancing the app's user interface and user experience. - Thorough experience in performance optimization to improve the app's overall responsiveness and speed. - Familiarity with third-party library integration. - Application debugging skills to tackle the issue of the app crashing on startup. This project calls for someone with attention to detail, proficiency in the EXPO environment, and a knack for both UI/UX and app optimization. If you can deliver a well-rounded update to an already efficient...

I'm in urgent need of a professional who can troubleshoot and fix an error in my Linux server's configuration. The specific issue is that my REST API is failing to connect to my MongoDB database. Key Responsibilities: - Identify the root cause of the server error - Resolve the server configuration error to enable seamless communication between my REST API and MongoDB The ideal candidate should have: - Proven experience in resolving server configuration issues, particularly on Linux systems - Strong knowledge of MongoDB and REST API, Dart, alfred package from , Docker and Docker Compose - A clear understanding of how to diagnose and fix connectivity issues between a REST API and a MongoDB database As I require this project to be completed within 1 day, I'm l...

...the cutting edge of technology! As part of this role, you'll be instrumental in our mission to build next-generation AI (GenAI) components for some of the biggest brands on planet earth. We're looking for individuals who are: - Java Masters: Strong in Java with a legendary code commit history (or a drive to build one!) - Linux Command Line Kung Fu (Bonus Points!): You're a master of Linux distributions and can navigate the command line with ease. Red Hat Enterprise Linux (RHEL) is your specialty. - Communication Champions: Explain complex concepts with crystal clarity. - Testing Ninjas: Craft bulletproof unit tests (Testers in disguise welcome!). - Documentation Experts: Share your knowledge with clear, accessible code using Markdown and GitBook. - G...

I need to set up my Node.js application on a Linux-based Godaddy VPS. Key Tasks: - Install latest stable Node.js version on the VPS - Deploy my Node.js application on the VPS Ideal Freelancer: - Experienced with Linux server administration - Proficient in installing and configuring Node.js applications - Familiar with deploying and managing apps on VPS - Good troubleshooting and problem-solving skills in case of any issues Please include in your proposal: - Relevant experience with similar projects - Estimated timeline for completion

As a business deeply entrenched in tech, we're in need of a skilled C++ Developer who specializes in native cross-platform MCUs firmware and software development. Our ideal candidate would primarily help us develop a Windows, Linux, and macOS compatible monitoring system, specifically for voltage. The goal is to create a GUI application with specific features. These include: - Real-time monitoring - Graphical representation - Data logging - GPIO MCU ON/OFF control - Voltage and current real-time transfer to PC via USB-connected MCU SAMD21 This calls for not only proficiency in GUI application development, but also a demonstrated understanding of working with real-time data transfer systems. Real-time voltage monitoring and the know-how of system-level development will be cr...

Upgrade the code to our previously built Magnus app. Tasks: 1. Update API level to latest one 2. Support changes for latest android version and for 3rd party SDK support 3. Final Testing 4. Update details on google developer console and upload build. Estimated time: approximately 60-80 hours.

I am looking for a freelancer to implement Talos Linux on a Radxa CM3 board. No specific functionalities or features are requested, though these may be discussed during the implementation. At the moment i have tried to modify this repository: With the kernel , dtb etc regarding my board (radxa cm3) and i have built an image that gives me the results that are showing in the attached picture. Ideal Skills and Experience: - Experience with Linux distributions, preferably Talos Linux - Knowledge of embedded systems and single-board computers - Ability to troubleshoot and resolve issues - Familiarity with network connectivity and software compatibility in the context of Linux Please provide a brief overview of your relevant experience and examples of similar

I'm in need of an expert who can handle two core responsibilities. The first is overseeing the successful installation of casino software, with a strong focus ...- Troubleshoot and debug any issues that arise - Integrate the software with existing systems You should be well-versed in all aspects of casino software installation, .NET full-stack development, and have a strong working knowledge of operating systems including Windows, Linux, and macOS. Your debugging skills must be top-notch. Ideal Skills: - Proficient in casino software installation - Thorough understanding of .NET full stack, including ASP.NET, WCF, Web API, WPF and MS SQL - Strong experience with Windows, Linux, and macOS - Excellent troubleshooting and debugging skills - Ability to integrate software...

I need an expert ASP.Net Core developer who can deploy my small .Net Core App in Nginx RedHat Linux. Required Skill: - ASP.Net Core 8.0 - Nginx - RedHat Linux

Hello friend, I just extended the space of a hard drive on my virtual server. but it is still reflected... They sent me this instruction: My question is if you are available to do it remotely at this time and what the price would be. thank you!

I need assistance moving a file from one Linux PC to another, both connected to the same network. I have root access to both machines, and prefer to use Remote Copy Protocol (RCP) for the transfer. Specifically, I'm looking for help with - Setting up a secure connection through TeamViewer or AnyDesk - Initiating the file transfer using RCP - Ensuring the transfer is smooth and successful The ideal candidate for this job will have: - Proven experience in Linux system administration - Familiarity with Remote Copy Protocol (RCP) - Ability to guide me through the process using remote desktop tools like TeamViewer or AnyDesk - Excellent troubleshooting skills in case any issues arise during the transfer.

We need a dynamic and innovative API integration specialist specialized in no-code mobile application platforms! In this exciting position, you will wo...exciting position, you will work closely with our team to build integrations with third-party APIs, significantly expanding the functionality and data access of our mobile apps. A successful candidate is expected to have the following qualifications: Experience with no-code mobile app platforms (Adalo, AppSheet, Bubble, Thunkable, Glide, etc.) Extensive experience with REST APIs, live APIs, SDK APIs, cloud APIs and other API types Strong technical skills in API integration and data processing Problem solving and analytical thinking skills Written communication and oral communication skills Ability to work in a team and f...

I'm looking for a skilled freelancer to help me with configuring network settings for my Linux VPS, with a specific focus on resolving GZIP issues. Key tasks include: - Review the current network settings on my VPS - Identify and troubleshoot the GZIP issue - Perform necessary configurations to ensure GZIP is functional - Ensure the network is properly secured and performing optimally Ideal Skills: - Strong experience with Linux VPS servers - Proficiency in network configuration and troubleshooting - Knowledge of GZIP compression and resolving related issues - Ability to secure a server and optimize its performance Please provide details of your relevant experience in your bid.

I'm looking for a skilled Linux AWS expert to help with the installation and initial setup of my CentOS instance on AWS, with a focus on a LAMP stack. Key responsibilities include: - Installing CentOS on my AWS instance - Configuring the LAMP stack (Linux, Apache, MySQL, PHP) to support my web hosting needs - Ensuring the environment is secure and optimized for performance - Providing a brief tutorial or documentation for future maintenance Ideal candidates should have: - Proficiency with CentOS and AWS infrastructure - Expertise in setting up and configuring LAMP stacks - Strong understanding of security and performance optimization best practices Please let me know about your relevant experience and availability for this project.

I'm looking for a skilled professional to assist in setting up KEDA with Selenium Grid on my Linux system. The primary goal of this project is to enable continuous testing in a Jenkins-based CI/CD pipeline. The ideal freelancer for this project should have: - Proficient experience with Linux, KEDA, Selenium Grid and Jenkins - Proven track record of setting up and configuring CI/CD pipelines - Ability to automate processes and ensure seamless integration between KEDA, Selenium Grid and Jenkins Key deliverables should include: - A detailed documentation of the setup process - Working CI/CD pipeline integrated with KEDA and Selenium Grid - Ensured scalability of browser tests through KEDA integration - Reduced execution time through parallel test execution I'm look...

- Experience with multiple multimedia libraries and frameworks: FFmpeg, GStreamer, libvpx, x264, x265, etc. - Knowledge of multiple streaming protocols (RTMP, RTSP, RTP, HLS, WebRTC, DASH, etc.) and codecs (AAC, Opus, H264, H265, VP8, VP9, AV1, etc.). - Experience with at least one commonly used media server software: RED5, Wowza, Kurento, etc. - Highly proficient in database design, with both relational and NoSQL (Scylla, Redis) databases. - Comfortable working with AWS, Linux, Docker, Kubernetes, continuous deployment workflow, multiple programming languages tech stack.

I have my own Linux-based server and I'm looking for a skilled professional to help me install an SSL certificate. Key Requirements: - Acquire a suitable SSL certificate that fits my server's requirements. - Expertise in installing and configuring SSL certificates on Linux servers. - Ensuring proper functionality and security of the SSL certificate post-installation. Your role will be crucial in securing my server and ensuring the proper functioning of the certificate. Let's discuss further and get this important task done.

I'm seeking a proficient Linux professional with AWS expertise to create an automated script or playbook for implementing CIS Benchmark level 2 on Amazon Linux 2 instances. Key Requirements: - The automation should be tailored specifically for the Amazon Linux 2 platform. - The script/playbook must adhere to CIS Benchmark level 2 standards. Key Automation Features: - The script/playbook should be triggered manually by an administrator. - Comprehensive error handling should be included in the automation. This includes logging, reporting, and potentially even some form of notification system in case of errors. Ideal Skills: - Proficient in scripting with bash. - Experience with infrastructure as code tools, especially Ansible. - Expertise in AWS, particularly in...

Looking for a skilled developer to program an RTSP player using PyQT5. This player needs to have the capacity to: - Play live videos on Windows and Linux operating systems. Please ensure familiarity and experience with these platforms. - Incorporate a pause/play functionality. This is a must-have feature, requiring attention to detail during creation. - Facilitate display of multiple videos simultaneously. The ideal candidate should understand the intricacies of multi-stream management. Proficiency in Python and specifically PyQT5 is necessary, as is knowledge working within the specific parameters of RTSP. A portfolio of similar work is highly advantageous.

I have a Ubuntu VPS and need a professional to install a Discourse forum on it. I already have the domain name secured and root access granted. The ideal freelancer for this project would have experience with: - Linux (specifically Ubuntu) - VPS management - Discourse forum installation This is a straightforward task for someone who knows their way around an Ubuntu VPS. Looking forward to seeing your bids. I have digitalocean VPS ready , smtp server from Project Aim: install discourse forum on my VPS .

I'm in need of a skilled developer who is adept in .net SDK and C# to develop an add-in for ArcGIS on the Windows platform. - The key functionality required for this add-in includes data serialization, network communication and database interaction. - Specialized experience in .net SDK and ArcGIS is highly appreciated. - You'd be expected to make this add-in compatible with Windows. Incase you've developed for this platform in the past, kindly highlight so in your proposal. An ideal candidate would be quick to understand requirements and deliver a clean, efficient solution. Looking forward to your bid.

I am looking for a developer to build an API on Python using a MooMoo OpenAPI & OpenD in a Linux docker image. You may have to create your own test MooMoo account for this. This API is to buy stocks from MooMoo. There is full documentation available on MooMoo website and it shouldn't be hard using the documentation. ,%22sub_promote_id%22%3A67%7D

I'm currently facing an issue with my Android app - specifically, Moj videos aren't downloading as intended. Additionally, I'm looking for the app's SDK to be upgraded to version 33. Key Tasks: - Diagnose and fix the issue causing Moj videos to not download properly. Due to api changed. - Upgrade the app's SDK to version 33. Ideal Skills and Experience: - Strong experience in Android app development and troubleshooting. - Proficiency in diagnosing and resolving issues related to video downloading in Android apps. - Prior experience in upgrading SDKs of Android apps.

I'm seeking a tech-savvy professional with extensive PHP script writing expertise to automate social media postings . 1. Facebook Page Objective and Tasks: 1. I queue the post using HTTP POST , ex: {"ttile":"post title","content":"Post content","img":"img_url"} may i know if required any paramers for Fb SDK to POST 2. It post content respective facebook page and return status true or false Delivery: 1. Only PHP script file is enough

I'm seeking an experie...Docker engineer to create a secure, clean Docker image, based on a Linux operating system. This image should be completely free from known vulnerabilities (CVEs). Key Features: - Container Isolation: The Docker image should be designed with efficient container isolation, avoiding potential security breaches. - Software: The Docker image should include Docker software. Skills & Experience Required: - Significant experience in Docker engineering and Linux operating systems. - Mastery in setting up container isolation in Docker. - Track record in designing Docker images free from CVEs. - Understanding of Docker software integration. I am looking for a seasoned professional who can promptly deliver a high-quality Linux-based Docker...

...2 interactive chat games on Twitch, built in Unity, and I'm seeking a coder to protect them from unauthorized usage. The project involves integrating LimeLM's license key management SDK into the installer. This will ensure that only users with valid licenses can play the games. Key requirements: - Expertise in Unity: Due to both games being developed in Unity, deep knowledge of this platform is essential. - Proficiency in C#: Since Unity primarily uses C#, you'll need a strong understanding of this language. - Experience with LimeLM: Familiarity and experience with integrating LimeLM's license key management SDK is preferred. - Understanding of Security Measures: Knowledge of how to protect software from illegal copying and usage is key. - Installer De...

Looking for a proficient C++ developer with expertise in building bots with specific functionalities. This zoom bot should enable automatic joining and recording of meetings in the Linux environment. Key tasks for the project: - Configure bot to autonomously join scheduled Zoom meetings. - Ensure bot records the complete duration of the Zoom meetings. Ideal skills: - Proficient in C++ programming, specifically for bot development. - Familiarity with Zoom API is a must. - Experience in developing Linux applications. - Ability to work independently with minimal supervision, as no additional software or system interaction is required for the bot. Please submit your bid detailing your proposed approach and previous work examples in the bot development field.

...know how to forward pass through 200 already trained PyTorch neural networks, and obtain their outputs, in <20ms, on a provided Linux server. This task is only for the ML inference step, and not for the training stage. Key Requirements: - Expertise in Python and Machine Learning: You should be well-versed in Python and have a strong understanding of machine learning principles. - Previous Experience in Speed Optimization: Experience in optimizing machine learning inference for high-speed applications is crucial. - Proficiency in PyTorch: Experience working with PyTorch specifically is highly preferred, as this is the library we are currently using. - Expertise in Linux - Knowledgeable about how to parallelize computations. Your responsibilities will include: - Imple...

Looking for a proficient C++ developer with expertise in building bots with specific functionalities. This zoom bot should enable automatic joining and recording of meetings in the Linux environment. Key tasks for the project: - Configure bot to autonomously join scheduled Zoom meetings. - Ensure bot records the complete duration of the Zoom meetings. Ideal skills: - Proficient in C++ programming, specifically for bot development. - Familiarity with Zoom API is a must. - Experience in developing Linux applications. - Ability to work independently with minimal supervision, as no additional software or system interaction is required for the bot. Please submit your bid detailing your proposed approach and previous work examples in the bot development field.

...developed in Unity where we're facing issues with the retargeting functionality of the AppsFlyer SDK. The initial SDK integration is working fine for installation tracking and event tracking, but the retargeting campaign does not function as expected. Issue Details: The retargeting functionality, which should trigger based on specific deep linking configurations and parameters set through the AppsFlyer dashboard, isn't operational. Although other aspects of the SDK perform correctly, the retargeting test fails, indicating a possible issue with how deep links are handled or how retargeting parameters are configured. Specifics: Platform: Unity (iOS and Android) Problem Area: Retargeting via AppsFlyer SDK Parameters Not Functioning: is_retargeting=t...

Hello, I'm looking for a freelancer to help me with a Python code project. I need the freelancer to create some code that can perform automated processes on a Linux platform. I don't have a preferred Python library so the freelancer can select one that is most appropriate for the task. The code should be well organized, bug-free, and efficient. I'm looking for a highly experienced freelancer to take this project on. If you think you have the required skills, I'd love to hear from you.

I am seeking a proficient Linux system administrator with a focus on security implementation. The ideal candidate should have: - Solid experience with Linux operating systems - Specialization in security implementation - Demonstrable skills in maintaining the integrity and reliability of systems While it's not specifically addressed, a familiarity with safeguarding methods such as establishing firewalls, encrypting data transmissions, setting up and managing user accounts, and access could be advantageous. If you possess these skills, I would love to hear from you.

I'm in need of a highly skilled Java Android developer experienced with OCR SDKs. You'll be undertaking a highly specific project, focusing on: - Text Recognition: More specifically, you'll be executing numeric with fraction recognition. - Language Recognition: Your SDK should be able to proficiently recognise and interpret numuric text. - Document Type: The OCR developed will be primarily used for the processing of energy utility bills. Experience with similar projects, specifically within the energy industry, would be invaluable for this role. I require someone who can efficiently navigate the complexities of implementing comprehensive OCR systems. Experience in Android development is non-negotiable. Fluent English is essential. Looking forward to our collaborati...

...looking for a proficient freelancer to set up a Linux web server and a database server on Ubuntu. The requirements are as follows: - Web Server: Please configure Nginx to serve as the web server. Ensure it's properly installed and optimized for performance. The access to the server should be via ssh keys only. Also provide information on how to set up permissions for individual Laravel projects in /var/www folder. - Database Server: Set up a MySQL database server. Create a database and a user with appropriate permissions and ensure everything is secure. - Security: Implement necessary security measures to harden the servers and ensure the installation is safe from common vulnerabilities. Ideal candidates should have: - Proficiency in Linux server administration, p...

I'm looking for an experienced developer to Dockerize my application and upgrade my ASP.NET Core 2.1 project (currently version 2.1.0) to .NET 6. Key Responsibilities: - Create a Docker file based on the Linux operating system. - Upgrade my project from ASP.NET Core 2.1 to .Net 6. Skills & Experience: - Robust knowledge in working with Docker and Ubuntu. - Proficient in .NET 6 migration from ASP.NET Core 2.1. - Ability to handle project dependencies while upgrading (specific packages or dependencies may be discussed later). The successful bidder will show excellent knowledge in making a seamless transition with minimal disruption. Looking forward to your reliable assistance. Note: You need to complete the work through remote access.

I need an experienced Android developer to create an IoT app using MQTT. - The primary function of the app will be asset tracking within a distributed control system. Ideal Skills: - Java based development for Android application - Able to use the resources/SDK at - MQTT with AWS using TLS cert Expected output: - Very basic app to demo one message publish to AWS topic and receive one message from subscribed topic - Demonstrate the mobile app connecting to AWS IoT and Sub-Pub on a topic - Use TLS certs (client, private and root) Demo first: - Demo the basic function first before the order placement Delivery & Payment: - The complete SW code and documentation on the first cut of testing at our end - Use 100% Opensource code - No API's

Tasks: - help on migrating WHM CentOS7 system to AlmaLinux8 - complete system check for any problems updates and safety issues + complete backup

I'm looking for a skilled server administrator to configure a Linode server with NGINX. The ideal candidate should have experience with NGINX, Linux server administration, and a good understanding of load balancing and SSL/TLS setup. Key Requirements: - Previous experience with server administration - Proficiency in NGINX - Ability to set up load balancing - Experience with SSL/TLS setup - Proven track record of similar projects Please only include past work related to server configuration and administration in your application. Thank you!

I need help setting up an email server on a Linux-based system. The primary purpose of this server is for sending marketing and promotional emails. I would like Sendmail to be installed as the email server software. Key requirements: - Setup email server on Linux operating system - Configure the server to handle marketing and promotional emails - Install and configure Sendmail software Ideal Freelancer: - Proficient in Linux system administration - Experience in setting up and configuring email servers - Familiarity with Sendmail or similar software - Understanding of email marketing best practices - AWS proficient - e-mail sending website setup - mail campaign management website like mailwizz mail sender setup - advance functionality of mailwizz sender - premium ...

Project Duration: Within 1 Day Project Budget: $125 Project Type: React & Tailwind CSS Server Type: Linux Ubuntu Project Level: Standard EXCELLENT LEVEL OF ENGLISH REQUIRED Project Overview We want a number of improvements & layout changes made to our React Admin Dashboard 5* FEEDBACK WILL BE LEFT FOR YOU

YOUR BID PRICE IS FINAL**NO LATER CHANGE IS ALLOWED**NO OUTSIDE DEAL*" NO ADVANCE PAYMENT I need an experience...their choice (including table) and download the extracted information in CSV format and Google sheet. The same users should be able to do incase of PDF and docx. It should be able to handle PDF and docx attachment of email and extract information. It should also be able to extract text from inside figure and from outside figure. There are some GitHub project which can be used. No paid API/Library/SDK can be used. I need full source code and copyri g ht and server installation services. See Reference video: Lowest Bidder will win the project.

The panel will be installed, assembled and broadcasted for a mobile application. A similar application and panel proposal will be evaluated. *Application content, categories and other content will be created SDK api from another site with api and placed in the new application. *Language Package *A support will be requested on a regular basis Zapier connection or another api connection will be made to automate user registrations. *It will enable the application to be published in stores.

I'm in need of an experienced Linux professional who is also familiar with the gpswox Tracking platform to provide technical support and assistance with optimization. Key Responsibilities: - Troubleshooting and fixing issues on the Linux server - Optimizing the system for performance - Providing software support for our gpswox Tracking platform Ideal Skills: - Proficient in Linux server setup and maintenance - Strong troubleshooting and optimization skills - Prior experience with gpswox Tracking platform is a big plus - Good understanding of scripting and automation - Excellent communication skills to provide support and guidance in a clear and concise manner. Your role is critical in ensuring the smooth operation of our systems and providing necessary suppor...

I’m in need of an experienced Full Stack Developer proficient in Python, JavaScript, Java, and Linux. The project involves: - Web development - Database management - Linux server administration Despite not specifying a preferred framework or technology stack, familiarity with Django, Node.js, or ASP.NET will be highly appreciated. Strong experience in these areas is essential for the successful completion of this project.

I'm in need of technical assistance for setting up a subdomain that will host a separate web application. This task involves pointing the subdomain to a dedicated server and using SSH or a reliable alternative method. Key areas of this...involves pointing the subdomain to a dedicated server and using SSH or a reliable alternative method. Key areas of this project include: - Creating and configuring the subdomain for a separate web application - Assigning the subdomain to my dedicated server, with SSH or a suitable solution - Working compatibly with a Linux-based operating system The ideal candidate will possess extensive experience in server configuration, subdomain setup, as well as strong proficiency with Linux-based systems. Understanding of web application hosting ...

YOUR BID PRICE IS FINAL## NO LATER CHANGE IS ALLOWED## I DON'T DEAL OUTSIDE FREELANCER## I need an experienced programmer who can take a work forward of building a browser based interactive worksheet mak... multiple choice, text box free text, radio, tick, drag the shape etc, embed audio, video, links, images, write any text with different font colors and sizes, styles. 2. After submitting the worksheets, the replies by students are autoscored based on the number set by worksheet maker. Students can also see correct answer. I need full source code, co pyr i g ht and installation in my shared linux server. See my built site and reference site Code should be well commented and clean. I need regular updates. Lowest Bidder will Win.

Embedded Linux Engineer to assist in the creation of a kernel device tree for a custom board. You must expertise in embedded systems development, particularly in configuring and customizing Linux kernels and creating device trees from schematics. Please provide your relevant experience for this task in few sentences in your application.

I'm in need of a knowledgeable freelancer to provide a introduction Ubuntu 22.04 Linux course focusing primarily on: ( I need to present this to 10 technicians who use linux based systems daily) Each attendee will have access to a Live image Ubuntu Machine to work with) - Basic system administration - Remote access solutions such as SSH, Telnet, Minicom - Essential usage instructions for a selection of beneficial command line commands, covering at least cp, scp, vi, cat, See attached for basic framework of minimum requirements. Each command must be given with samples of how it is used. Urgency is key in this project, as I require the completion of the course as soon as possible (maximum 1 week from now). Candidates with deep Ubuntu knowledge, impressively agile teach...