/** The oldest node that runs a bundle: --experimental-vfs with --vfs-load. */
export declare const FLOOR = "26.11.1";
/**
 * Whether `version` is at least `minimum`, as the launcher decides it: a
 * missing part is 0, and a pre-release comes before its release. A version
 * that is not one is never enough.
 */
export declare function atLeast(version: string, minimum: string): boolean;
/**
 * The lowest node version an `engines.node` range accepts, for a launcher to
 * check — never below `FLOOR`. Only the lower bound is checked: `upper` says
 * whether the range also has an upper one, which the launcher does not hold
 * to. Throws for a range it cannot read, rather than guess at a minimum.
 *
 *   ">=27.1.0" → 27.1.0     "^27" → 27.0.0 (upper)     "27.x || 28" → 27.0.0
 *   ">27.1.0"  → 27.1.1     ">27" → 28.0.0             "27.1 - 28" → 27.1.0 (upper)
 */
export declare function minimumNode(range: string | undefined): {
    minimum: string;
    upper: boolean;
};
/** The minimum an app's launcher checks: its package.json's `engines.node`, if it says. */
export declare function appMinimum(base: string): {
    minimum: string;
    upper: boolean;
    range?: string | undefined;
};
/** The launcher, as it is shipped, with `minimum` as what it checks for. */
export declare function launcherText(minimum?: string): string;
/**
 * The launcher for an app at `base`, written into a new temporary directory
 * as `shell-base`: what `bundle create --launcher` puts in front of it. The
 * caller removes `dir` once the archive is made.
 */
export declare function writeLauncher(base: string): {
    path: string;
    dir: string;
    minimum: string;
    upper: boolean;
    range?: string | undefined;
};
/** A node, and its version. */
export interface FoundNode {
    path: string;
    version: string;
    /** Where it was found: `PATH`, `this process`, or a version manager. */
    from: string;
}
/**
 * The node a `.nzip` should open with on Windows, at least `minimum`: the one
 * on PATH when it is new enough, else the one running this, else the newest
 * a version manager has installed — nvm-windows, fnm, volta, mise — or bundle
 * has downloaded into its own directory (`nodesDir()` in nodes.ts). Undefined
 * when there is none. `env`, `execPath` and `run` are for tests.
 */
export declare function windowsNode({ minimum, env, execPath, run }?: {
    minimum?: string | undefined;
    env?: NodeJS.ProcessEnv | undefined;
    execPath?: string | undefined;
    run?: ((node: string) => string | undefined) | undefined;
}): FoundNode | undefined;
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