How do I build a WebAssembly package that supports multiple bundlers?

I want to build a hybrid library (i.e. NPM package) using JavaScript (TypeScript) + WebAssembly (Rust). And I want to support multiple bundlers, not just Webpack. This seems difficult, since each bundler uses a slightly different approach for importing WASM:

// Webpack (experiments.asyncWebAssembly)
import { hello } from './my-lib.wasm'
hello()

// Rollup (using @rollup/plugin-wasm)
import init from './my-lib.wasm'
init().then(({ instance }) => { instance.exports.hello() })

// Parcel
import { hello } from './my-lib.wasm'
hello()
// ...or, if you want a promise
import('./my-lib.wasm').then(exports => { exports.hello() })

// Vite (note: this will be removed in v3.0,
// see https://github.com/vitejs/vite/discussions/7763)
import init from './my-lib.wasm'
init().then(exports => { exports.hello() })
// alternatively, use vite-plugin-wasm, which is the preferred approach for v3+
import { hello } from './my-lib.wasm'
hello()

I can't rely on JS bindings generated by wasm-bindgen, since AFAIK it is only compatible with Webpack.

// JS bindings generated by wasm-bindgen
import * as wasm from './my-lib_bg.wasm'
export function hello() { wasm.hello() }

Web apps don’t have this problem because they can choose their own bundler--but I don't know what bundler will process my code in advance.

How can I write a package that supports multiple bundlers? Can I somehow generate different entry points for each bundler?