Remixed project deployment stalls during dependency installation

Answer

Remix does not create a separate build quota. The dependency installation step on a remixed instance is governed by the same start-up resource constraints that apply to initial project creation. There is no confirmed remix-specific limit set. Custom build configuration from the source project is copied with the files and is generally respected on remix, so a clean bare npm install is not forced. Documented, platform-agnostic workarounds for large trees do not exist; the reliable mitigation is to reduce the install surface and install time pressure.

Confirmed facts

• A remix operation duplicates the source project's files and environment variables, then triggers a fresh dependency installation from the copied package.json. The install phase is not skipped.
• Documentation acknowledges that heavy or deeply nested dependency trees can increase build times or cause deployment failures when environment limits are reached.

Likely explanation, not confirmed

• Resource limits are the same as for a normal start. The install step is typically constrained by memory, disk usage, CPU time and an install/start timeout. The same limits apply to remix as to initial creation; remix does not inherit a custom resource profile from the source project.
• Custom build configuration such as glitch.json install or start scripts is copied with the project files and is likely executed on remix, rather than the platform always running a generic install.
• Remix adds concurrent pressure from file copy and environment variable hydration, which can make the identical package.json slower than on a normal restart.

Steps needed for this case

1. Check the remixed project's build logs for the npm install phase. Note elapsed time, memory or disk warnings, and any timeout or killed process messages.
2. Compare install duration and peak disk usage between a source project restart and the remixed project start to confirm the same limits are being hit.
3. Inspect the copied build config in the remixed project, e.g., glitch.json or equivalent, to verify install/start scripts are present and executed as expected.
4. Test with a minimal package.json containing only production dependencies on a fresh remix to isolate dependency size as the cause.

One missing diagnostic detail that changes the recommendation: the specific platform and plan. Quotas, enforcement timing, and whether glitch.json is relevant are platform and plan specific and can change without notice.