Bossy Lobster

A blog by Danny Hermes; musing on tech, mathematics, etc.

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Epitaph: Blend

Auf Wiedersehen

Goodbye

I recently made the very hard decision to leave Blend. Today (March 4, 2022) is my last day. I am overwhelmed with emotion thinking about all of the amazing people I worked with and projects I worked on at Blend. I want to thank you all from the bottom …

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Remodeling the House While Living in It

Rename Name Tag

Minor Mismatch

When using a database in an application, there are many ways the idioms from the database ecosystem can disagree with the idioms in the programming language used to write the application. The object-relational impedance mismatch is one such example of this, but that is mostly about differences between …

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What Is a Milestone Migration and Why Do I Care?

Database Milestone

Motivation

Over time an application becomes a living thing. When operating a running service, it's crucial to not only ask the question

Does the code being deployed work?

it's also crucial to ask

Can I safely deploy this change given the currently running version of my service?

This second question …