gleam-lang/gleam

application_start_module interferes with gleam run -m command

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#4771 opened on Jul 11, 2025

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 (15 comments) (0 reactions) (0 assignees)Rust (21,417 stars) (960 forks)batch import
good first issuehelp wanted

Description

When application_start_module is configured in gleam.toml, running a specific module using gleam run -m <module> causes the application start module to interfere.

See discord discussion https://discord.com/channels/768594524158427167/1392886040385032245

Contributor guide

Tech stack
rust
Domain
cli
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
RustGleam CLI basics
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
50
Research direction
Investigate the `gleam run m` command implementation in the CLI to see how `application start module` interferes. Check the configuration loading code in `gleam.toml` parsing. Reproduce the issue by running with and without `application start module` set. The Discord discussion may provide additional context on expected behavior.