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embr studio

Last updated August 24, 2026

More than "open Studio": embr studio is a subcommand group (bare embr studio prints its help) that manages the [studio] table in ember.toml, which describes what this project opens in Roblox Studio — either a published place (universe + place IDs) or a local place file, never both.

embr studio init#

Interactive wizard that writes [studio] (errors if the table already exists). Two paths:

  • Published place: prompts for the universe (experience) ID and place ID — both positive integers.
  • Local file: prompts for a .rbxl/.rbxlx path. The default is guessed from the project's Rojo manifest (the name field of default.project.json, else the first *.project.json alphabetically) as <name>.rbxl. The file doesn't have to exist yet — building it later with rojo build is normal.

embr studio open#

Opens whatever [studio] describes, after validating everything checkable before Studio is involved:

  • the table is present ([studio] missing → "run embr studio init"), not empty, has no unknown keys (a typo'd key is named, e.g. universeId), and doesn't mix both forms at once;
  • both IDs present and non-zero, or the file is non-empty, exists, is a file, and has a place extension;
  • Studio looks installed: on Windows the roblox-studio: protocol handler and .rbxl association in the registry; on macOS RobloxStudio.app in /Applications or ~/Applications; on Linux best-effort via xdg-mime (there is no official Linux Studio — a missing handler points at Vinegar).

Then it launches: IDs become the same roblox-studio:1+launchmode:edit+task:EditPlace+placeId:…+universeId:… deep link the Roblox website's own Edit button uses; files go through the OS file association. Launch is via ShellExecuteW / open / xdg-open. No credentials are involved — Studio authenticates the user itself after the handoff, and anything that goes wrong after launch is Studio's to show.

Typos are contained#

A typo'd [studio] key never breaks other commands — the manifest still parses; only studio open reports it.

The manifest table#

[studio]                       # one form only
universe = 13058
place = 1818
# file = "game.rbxl"