DevToolsDigest: June 21st, 2019
This week's digest includes news and resources from Stripe, Atlassian, Intersect Labs, Pantheon, Dropbox, Slack, and more.

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The Week in Developer Tools
Sorbet is a fast, powerful type checker designed for Ruby. It scales to codebases with millions of lines of code and can be adopted incrementally. After spending the last year and a half developing and adopting Sorbet internally, Stripe is now open sourcing it. 
Since March, Trail of Bits has been working with the Python Software Foundation to add two-factor authentication (2FA) to Warehouse, the codebase that powers PyPI. Now PyPI members can enable time-based OTP (TOTP) and WebAuthn (currently in beta).
Despite the incredible attention that machine learning and artificial intelligence get from the press, the reality is that there is a massive gap between the needs of companies to solve business challenges and the availability of talent for building incisive models.
Industry Research
The "monoliths versus microservices" debate often focuses on technological aspects, ignoring strategy and team dynamics. But instead of starting with technology, smart-thinking organizations are beginning with the team's cognitive load as the guiding principle for the effective delivery and operation of modern software systems.
You probably know the importance of embracing an agile approach for your web and marketing teams. The best digital experiences result from teams that regularly collaborate, experiment, and iterate on their websites using data-driven decisions.
It's easy to get lost in the AI-hype and believe the doomsday sound bites that multiplied within social media. But perspective on how startups are making AI work for people, and not against or instead of them, abound.
Conventional wisdom would suggest that you close your data centers and move to the cloud, not the other way around, but in 2016 Dropbox undertook the opposite journey. It (mostly) ended its long-time relationship with AWS and built its own data centers.
Developer Venture News
Slack’s IPO started with a bang as the first trade was priced at $38.50, giving the company a $23 billion valuation, well above the expected $16 billion. They reportedly projected a $26 per share opening price that would have valued it at $15.7 billion. Within the first two hours of trading, the stock price surged further to $41.85.
Enterprise software company Atlassian wants to stand out from the others in a hot deal market. It published its term sheet document for acquisitions, which spells out how much money it will set aside for escrow and for how long. The move reflects how competitive technology companies can be when it comes to new talent and technology.
From The Heavybit Library
Building High-Fidelity Personas and Segmenting Users
There is no universal developer, nor is there just one universal developer segment. In this session, panelists offer the audience the key components of high-fidelity personas, the research methodologies required to craft them, and the assets to capture and communicate to various segments. 
In episode 41 of JAMstack Radio, Brian is joined by Paul Biggar, CTO of Dark. They discuss improving developer workflow in the JAMstack, as well as the challenges of developing a holistic programming language from the ground up.
In episode 10 of EnterpriseReady, Grant speaks with Joel Wallenstrom, CEO and President at Wickr. They discuss Joels background in the cyber security industry, as well as the process of bringing consumer products to enterprise, particularly for mobile-first companies.