Coder Prebuilt workspaces significantly reduce workspace startup times to under a minute without the need for always-on environments. This is achieved by offering ready-to-use development environments that eliminate lengthy manual setup and cold-start delays. By maintaining a controlled pool of warm, ready-to-go workspaces, teams can deliver much faster workspace launches, ideal for scenarios like on-boarding new engineers, ephemeral workspaces, and scheduled training sessions. Prebuilt workspaces build on top of Coder's Presets feature, which allows template admins to define curated combinations of settings, simplifying setup and enforcing consistency. The prebuilds section in the preset definition specifies how many workspaces should be kept in the pool for a given preset, enabling the system to assign prebuilt workspaces directly from the pool when a developer requests one. With Prebuilt Workspaces, developers can experience instant development experiences while minimizing infrastructure costs, which are managed through clear visibility and observability tools.