vercel / vercel/hyper

4.0.0-canary.5: Sixel support gets eaten by Windows ConPTY Fallback

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Description

  • I am on the latest Hyper.app version

  • I have searched the issues of this repo and believe that this is not a duplicate

  • OS version and name: Windows 11 Pro 25H2

  • Hyper.app version: 4.0.0-canary.5

  • Link of a Gist with the contents of your hyper.json: N/A

  • Relevant information from devtools (CMD+ALT+I on macOS, CTRL+SHIFT+I elsewhere): N/A

  • The issue is reproducible in vanilla Hyper.app: Is Vanilla

Issue

Sixel support gets eaten by the fallback to Windows's old ConPTY. Updating node-pty to 1.1.0 and using useConptyDll:true would utilize the newer version of ConPTY that ships with node-pty 1.1.0 allowing windows users to have sixel support.

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Locate the node-pty dependency and the Windows ConPTY fallback configuration, then inspect how useConptyDll is passed for Windows. Update node-pty to 1.1.0 and enable the option so Sixel output is preserved on Windows; verify the behavior in the vanilla Hyper.app setup described in the issue.

Written by the indexing model from the issue text.

Assessment

Tech stack
typescript
Domain
desktop, operating-systems
Issue type
Feature
Difficulty
2/5
Estimated time
1-3 hours
Activity status
Active
Clarity
Clearly specified
Newbie friendliness
72/100

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