A hypothetical server-side javascript blog-making file.

make-blog.js

var fs = require('fs'),
    _ = require('underscore'),
    markdown = require('markdown').markdown,
    tinymake = require('tinymake');

// all posts are .md (markdown files)  
var posts = _.filter(fs.readDirSync('posts'), function(name){
    return name.match(/\.md$/)
});
var pages = [];

// setup target to build entire blog
tinymake.file (
    'blog', // target
    pages   // source
            // targets with no build rule are synthetic
            // make('blog') means make all of blog's pages
  );

function Markdown2HTML(htmlFile, markdownFiles){
    var mdContent = fs.readFileSync( markdownFiles[0], 'utf8' ),
        htmlContent = markdown.toHTML(mdContent);
    fs.writeFileSync(htmlFile, htmlContent, {encoding: 'utf8'});
}
// setup targets for each .md to be turned into a .html file
_.forEach(posts, function(post){
    // posts/blogPost.md => blogPost.html
    var page = post
        .replace(/\.md$/, '.html')
        .replace(/posts\//, '');
    
    tinymake.file(
        page,         // target
        [post],         // source
        Markdown2HTML // how to build target from source
    );
    pages.push(page);
});

tinymake.make('blog');