Open source crossed the chasm into mainstream with users in all industries. Maintaining the users’ trust and sustaining innovation is key to open source’s success.

However, in a world where communities are passionate, multicultural, and primarily use online communication, it is challenging to move communities towards a shared vision in a frictionless, sustainable way. Community challenges can impact innovation, putting user adoption at risk and even more importantly, hurting community members.

Stronger open source leadership can address these challenges and there is a call for more leaders in every project. Good news! Every contributor is a leader either through self leadership, leading others, or leading the community, yet most people have never been trained on how to lead.

This talk provides the leadership the training you need and covers:

- Why strengthen community leadership

- Key leadership and emotional intelligence principles

- Practical ways to lead as a contributor

Pandas, the de-facto standard DataFrame implementation in Python, is very popular among data scientists, but it does not scale well to big data. It was designed for small data sets that a single machine could handle. On the other hand, Apache Spark has emerged as the de-facto standard for big data workloads. Today many data scientists use Pandas for coursework, pet projects, and small data tasks, but when they work with very large data sets, they either have to migrate to PySpark to leverage Spark or downsample their data so that they can use pandas.

Now with Koalas, an open-source implementation of the Pandas API on Apache Spark, data scientists can make the transition from a single machine to a distributed environment without needing to learn a new framework. In this talk, we'll go through the basics of Koalas, along with demos.

n this workshop, we will dive into the popular PyGame library.

First we will learn about basic arcade game architecture:

• Game loops
• Game stats
• Game objects
• Game play

1. Web Assembly Introduction
2. How web assembly is used in different platforms/languages (e.g. .NET, Python, Rust, etc)
3. What's next on Web Assembly

Watch online: https://youtu.be/Ur65X6NLVKk

This talk will focus on the Five S’s: speed, stability, scalability, security and savings and how they can help shape a practical, useful and productive approach towards Kubernetes and containers in the enterprise.  With Kubernetes taking a dominant position in enterprise technology planning, particularly for platform engineering teams, Shaun will share advice and good practices based on Pivotal’s global customer base and our 5+ years’ experience of running containers in production, at scale, for some of the world’s most interesting companies.

How do we break down a large JVM monolith without incurring runtime costs? How do we scale dependency injection in such an application running in a constrained environment like mobile? Does it play well with a modularized Android app? How do you visualize and navigate the graph as complexity grows?

In this session we will describe the mechanisms that we use at Twitter to facilitate modularization and decoupling utilizing dependency injection. We will also cover why Dagger is our tool of choice along with the shortcomings we encountered, and share some practical advice on how to address them. Finally, we’ll offer a sneak peek of the extensions that we built on top of Dagger to facilitate dependency injection that we plan to open source in 2020.

I will be talking about an easily accessible, customizable, and modern, free and open-source time converter (handles time zones) that everyone can use (https://wlwl2.github.io/time-converter/). I will also briefly talk about using Nintendo Joy-Cons to deliver presentations.

1. Why no to Native apps ?
2. PWA and its advantages
3. Creating PWA in 4 easy steps
4. Launching PWA to Play Store
5. Creating Fast app
6. What is AMP
7.  How AMP works
8. AMP offerings
9. Learning AMP
10. Contributing to AMP.

AI holds great promise to advance technology, increase efficiency and introduce revolutionary tools into our lives. However, AI and other data analytics systems have often been implemented without proper safeguards, and have exacerbated certain social ills. In recognition of the potential risks, the Personal Data Protection Commission (PDPC), a government agency, published “A Proposed Model AI Governance Framework” in January 2019. The Model Framework introduced some safeguards for the development and deployment of AI, and encouraged companies to adopt those safeguards in their internal governance. The PDPC called on the public to provide feedback, so as to improve upon the current proposed framework.Answering the call for feedback, DataKind SG in partnership with Effective Altruism SG have prepared a detailed paragraph-by-paragraph response to the model framework. https://npwg-ai-sg.github.io/

AI Innovation is one of the key pillars in AISG to help accelerate the adoption of AI. Our activities are centred on 3 themes: LearnAI, DoAI and ShareAI.

DoAI provides AI software tools and advisory services to accelerate the adoption of AI by the industry. Amongst our offerings is AI Bricks which are developed by AISG’s engineers and are available as downloadable tools, libraries, and assets for open source software or APIs.

In this talk, Tern Poh will share about AISG's journey of creating open source solutions inspired by real-world projects and common AI requests from the industry. He will also give an overview of the available pre-built solutions, the key technologies powering them, and their potential use cases.

• Using TagUI in common web scraping tasks
• Using TagUI in common desktop interactions

Mysterium Network is building a distributed and permissionless VPN network. In our network providers are paid directly by consumers for providing VPN services.  

Payments are a crucial element of Mysterium Network. As such, we needed to design a solution which was capable of meeting real-world requirements of scalability and affordability. This system also had to comply with the ethos of decentralised ecosystems. These are two opposing forces, with no solution fit for Mysterium Network readily available in the market.

Here were the main requirements of our proposed system:

1. High throughput – the network’s ability to handle frequent and small payments (eventually thousands per second)
2. Support for our native utility token, MYST
3. Anonymity while also being secure, such as through the use of identity registration and reputation system
4. Great user experience, removing as much complexity as possible for the end-user.

We also had to consider that consumers won’t pay a large amount up-front and the service providers (nodes) are unlikely to offer their services without prepayment.

AnalyticDB for MySQL is a high-performance data warehousing service from Alibaba Cloud. AnalyticDB for MySQL uses a distributed computing architecture that enables it to use the elastic scaling capability of the cloud to compute tens of billions of data records in real time.

• Difference between data collection and data management
• What could you do with the data on hand?
• Cost of data management (open source vs commercial products)
• The process of data management (collection of data ingestion of data,pre-processing, queries and value extraction)
• Story telling on your data (visualizations)- Demo on a simple use case / scenario
• Extra topics: monitoring and observability (apps and dashboard)

• why we moved from SaltStack
• why Puppet was chosen
• how to use Puppet OpenSource in painless way
• which orchestration tool to use with Puppet
• what is next

Open Design is a collaboration between Adobe, Designit and Ushahidi. Looking at increasing and sustaining design contribution to open source and advocating for OSS in design, and design in OSS.

Ushahidi builds OSS humanitarian tools, remotely for some of the most marginalized people across the globe. To tackle these systemic problems with how to ‘open source’ a design effort and bring the community along with the ‘on-staff’ Ushahidi designers, we piloted a series of design events on Ushahidi’s OSS crisis communication tool TenFour with our partners Designit and Adobe. Together, we’re looking to solve the problems with how open source design can work by engaging through meaningful technology that makes a difference in the world.

In this session, we’ll briefly cover the history of the project and the main problems we attempted to solve and we’ll present the learning and adaptions to our workshop framework and methodology that aims to engage design teams and individuals that are not yet ‘on-board’ with OSS as an ethos or movement.

Looking into some the abstract deeper motivations for design professionals to contribute but also some practical tips on structuring issues, labelling and maintaining design (and extended functions like research, UX and product management) you’ll leave with a set of tools and methods you can apply to your OSS to engage with designers.