DevToolsDigest: August 23rd, 2019
This week's digest includes news and resources from WePay, CloudForecast, Convox, LinkedIn, Datadog, Google Developers, Mux, and more.

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The Week in Developer Tools
Whether you're a city planner, a small business owner, or a software developer, gaining useful insights from data can help make services work better and answer important questions. But, without strong privacy protections, you risk losing the trust of your citizens, customers, and users.
On August 26, 2019, the GitHub application was deployed to production with 100% of traffic on the newest Rails version: 6.0. Read more about their process for upgrading, what they learned, and what’s next.
Waltz is a recently open source-released, distributed write-ahead log. It was initially designed to be the ledger of money transactions on the WePay system and was generalized for broader use cases of distributed systems that require serializable consistency.
An event-driven architecture is one in which a system reacts to events that are emitted by other systems. The definition of an event can vary based on the architecture as they will likely be specific to the systems involved.
Over the past year and a half, Steve Krouse has been collaborating with Dark (a new programming language startup) to research programming languages and tools. These reviews are for the makers of tools, those that are pushing our computational interfaces forward. The goal of the Whole Code Catalog is to provide inspiration for the tools you will one day create.
Industry Research
There is extensive literature on maintaining quantile sketches where the emphasis has been on bounding the rank error of the sketch while using little memory. Unfortunately, rank error guarantees do not preclude arbitrarily large relative errors, and this often occurs in practice when the data is heavily skewed.
Back then, when discussing load balancer configuration, the balancer scheduling algorithm (round robin, least busy, random, etc…) was everyone’s biggest focus. Since then load balancing has become a bit more sophisticated.
As a CISO,  there have been many stressful events that LinkedIn's Geoff Belknap has had to manage. Top among them in terms of potential complexity and importance is communicating publicly about a security-related incident.
Developer Venture News
Both Datadog and Ping Identity, announced initial price ranges in fresh SEC filings. While the proposed price ranges do not provide final information regarding the companies’ worth, they do give us good guiding marks concerning their potential public value.
Over the past few years since their seed, ReadMe has grown steadily and profitably- working with over 3,000 companies to improve their developer experience. Recently they’ve grown very excited about how Developer Metrics could further their mission and decided it was time to raise a Series A round.
The company revealed that it’s raised $20M in series B funding led by Evolution Media with participation from Accel and Y Combinator, bringing the company’s total raised to over $30 million following a $9 million round in April 2017.
Snyk, a London and Boston-based company that got its start identifying and developing security solutions for developers working on open-source code, announced that it has raised $70 million, funding that it will be using to continue expanding its capabilities and overall business.
From The Heavybit Library
Upcoming Event - Sep 24: Commercial Open Source Business Strategies w/ GitLab CEO Sid Sijbrandij
In this Speaker Series presentation, Sid will discuss how GitLab has managed to resist forking and commoditization, as well as walk us through his journey to discovering the “buyer-based open core model” and pricing strategy.
In this Speaker Series presentation, Michael Dearing provides an overview of models to help your team write, think and problem-solve, including the Minto Pyramid Principle. 
In episode 45 of JAMstack Radio, Brian speaks with Jeremy Glassenberg, a startup mentor and advisor. They discuss iFrames, external APIs, and how third-party APIs can be embedded into existing platforms.
In episode 14 of EnterpriseReady, Grant is joined by Michael Pryor, Founder and CEO of Trello. They discuss Michaels background, naming products, disruptive pricing models, and product assortment.
In episode 36 of The Secure Developer, Guy is joined by Peter Oehlert of Smartsheet. They discuss holistic security approaches, understanding various categories of risk, and how the different teams in a large organization can work together to improve security.
In episode 12 of O11ycast, Charity Majors and Liz Fong-Jones speak with Rich Archbold of Intercom. They discuss the crucial importance of timely shipping, high-cardinality metrics, and the engineering value of running less software.