node-fallback-fence.ts:17:13 - error SC2020: 'Buffer<ArrayBufferLike>.reverse' is part of the standard library types but has no scriptc lowering yet

  16 | process.stdin.setEncoding("utf8"); // terminal streams accept a text encoding
  17 | const buf = Buffer.from("x", "utf8").reverse(); // from and fill lower; reverse fences
     |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  18 | const enc = new TextEncoder().encode("x");

  hint: the type checker sees the full standard library, but only the supported surface compiles (https://scriptc.dev/limitations)

node-fallback-fence.ts:30:28 - error SC2020: 'timers/promises.setInterval with 3 arguments' is part of the standard library types but has no scriptc lowering yet

  29 | const raw = readFileSync("/etc/hosts").toString(tty ? "hex" : "latin1"); // runtime BufferEncoding selection lowers too
  30 | const intervalWithSignal = promiseInterval(1, "tick", {}); // AbortSignal options stay fenced
     |                            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  31 | const sleepWithSignal = promiseSleep(1, "tick", { signal: AbortSignal.timeout(5) }); // resolve values and AbortSignal options lower

  hint: the lowered form is setInterval(delay, value) with an explicit yielded value; AbortSignal options are not supported yet