CS.

gulpfile.esm.js/build.js

-import del from 'del';
-import { dest, lastRun, parallel, series, src } from 'gulp';
-
 import { ASSET_GLOB, DEST_DIR, GRAPH_GLOB, PDF_GLOB, PREZ_GLOB, REVEALJS_URL } from './config';
+import { dest, lastRun, parallel, series, src } from 'gulp';
 import autoindex from './plugins/autoindex';
+import del from 'del';
 import drawio from './plugins/drawio';
 import pandoc from './plugins/pandoc';
+import revealjs from './revealjs';
 import spy from './plugins/spy';
 import wkhtmltopdf from './plugins/wkhtmltopdf';
-import revealjs from './revealjs';
 
 export const clean = () => del(`${DEST_DIR}/**`, { force: true });
 

gulpfile.esm.js/dev.js

-import { parallel, series, src, watch } from 'gulp';
-import server from 'gulp-server-livereload';
-
-import build, { assets, graphs, pdf, prez } from './build';
 import { ASSET_GLOB, DEST_DIR, GRAPH_GLOB, PREZ_GLOB } from './config';
+import { assets, build, graphs, pdf, prez } from './build';
+import { parallel, series, src, watch } from 'gulp';
 import revealjs from './revealjs';
+import server from 'gulp-server-livereload';
 
 const serve = () => {
   src(DEST_DIR).pipe(

gulpfile.esm.js/revealjs.js

 import { dest, lastRun, src } from 'gulp';
-import { magenta } from 'gulp-cli/lib/shared/ansi';
+import { DEST_DIR, REVEALJS_URL } from './config';
 import logger from 'gulplog';
+import { magenta } from 'gulp-cli/lib/shared/ansi';
 import path from 'path';
-
-import { DEST_DIR, REVEALJS_URL } from './config';
 import spy from './plugins/spy';
 
 let revealjs = () => Promise.resolve(false)