Pulsar
A next-generation integrated development environment (IDE) for Smalltalk, first presented publicly at ESUG 2026. It targets existing Smalltalk developers and attempts to address shortcomings in modern development experience while preserving image semantics.
Timeline (last 90 days)
Pulsar is a new-generation Smalltalk integrated development environment (IDE) that made its first public appearance at ESUG 2026.
Pulsar sparked discussion in technical communities such as Hacker News.
For Pulsar, whether to choose to build its own dedicated IDE deeply bound to the image, or to project the image contents into a form LSP can understand so as to connect to external editors such as VS Code, is a key architectural divergence.
Pulsar's appearance at ESUG 2026 shows that the Smalltalk community is still investing resources in maintaining and updating its own core tools, rather than relying only on a few long-standing environments.
To assess Pulsar's fate, what is worth watching is its subsequent open-source strategy, the images/runtimes it supports, and whether it can genuinely improve day-to-day coding and debugging experience while preserving Smalltalk's dynamic features.
All Facts (5)
For Pulsar, whether to choose to build its own dedicated IDE deeply bound to the image, or to project the image contents into a form LSP can understand so as to connect to external editors such as VS Code, is a key architectural divergence.
50%UnverifiedPulsar's appearance at ESUG 2026 shows that the Smalltalk community is still investing resources in maintaining and updating its own core tools, rather than relying only on a few long-standing environments.
50%UnverifiedTo assess Pulsar's fate, what is worth watching is its subsequent open-source strategy, the images/runtimes it supports, and whether it can genuinely improve day-to-day coding and debugging experience while preserving Smalltalk's dynamic features.
50%UnverifiedPulsar is a new-generation Smalltalk integrated development environment (IDE) that made its first public appearance at ESUG 2026.
50%UnverifiedPulsar sparked discussion in technical communities such as Hacker News.
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