Read, Write, Execute.
Notes from the team on software engineering research, CI/CD, and how we're building RWX.

September 24, 2024
More CPU and Memory for Tasks
RWX now supports running tasks with up to 64 CPUs and 256 GB of memory.

June 25, 2024
RWX 1.0 Now Available
Discover RWX 1.0 with improved support for Docker containers. Try it now!

May 31, 2024
Adaptive CI Pipelines with Dynamic Tasks
Dynamic tasks enable building CI pipelines which are adaptive based on things like the commit contents or data from external data sources. They unlock a lot of possibilities for building highly performant CI pipelines.

May 30, 2024
What to Do When Merging Faster than Your Continuous Deployment Process
When multiple commits are merged in rapid succession, rather than creating a backlog of deployments, a reasonable solution is to skip deploying the earlier commits and only deploy the most recent one.

May 29, 2024
Implementing a Remote Debugger with Node and tmux
We built a remote debugger into RWX using a familiar construct: setting a breakpoint. It's as easy as calling rwx-breakpoint from a task and then using the local CLI to run rwx debug {debugId}.

May 28, 2024
Serializing Map Data Structures from Shell Scripts
Shell scripts are commonly used for automating DevOps and CI/CD tasks. Unfortunately they do not provide an easy way to build a map data structure and serialize it directly from a shell script, which usually leads to engineers inventing a custom format instead.

May 23, 2024
Ensuring Version Consistency Across All Environments
As a best practice, engineering teams should ensure that the same version of tools and runtimes are used across all environments. The best way to enforce version consistency is checking for it explicitly in a CI pipeline.

May 22, 2024
Designing a Software Supply Chain for Security and Reliability
For both security and reliability, package managers should be designed to always lock packages to a specific version. They should also provide an easy way to upgrade packages to the latest version.

May 21, 2024
Git Push to Run CI/CD is a Terrible Developer Experience
Traditional CI/CD platforms are designed to run when developers push commits or update their pull requests. And it's a terrible developer experience when implementing new workflows.

May 20, 2024
The Paradigm Shift of CI/CD as a DAG of Tasks
RWX defines workflows as a directed acyclic graph (DAG) of tasks, rather than as scripts on VMs. This difference is the key to RWX’s unmatched performance and developer experience.