GuideFree
Y Combinator Library
Thousands of essays and talks on starting, funding and growing companies.
#startups#fundraising#advice
ycombinator.com
The Wiki
Everything I use to build, ship and sell software.
A living library for vibe coding, software development and entrepreneurship. No affiliate padding, no listicles — just the tools, guides and books that survived real projects.
92 resources3 topics23 principles31 templates12 design systems6 workshops38 startup deals128 ideasBy Pedro Matos Costa
02
The Prompting Playbook
23 principles for prompting AI builders, including debugging, with copy-paste examples.
Read
03
Prompt Library
Design styles, buzzwords and reusable prompt patterns.
Read
04
Template Library
Internal tool templates for every team, with a build prompt each.
Read
05
Design Library
12 complete design systems — copy the file, paste the vibe.
Read
06
Workshops
Guided sessions with instructions, milestones and a build to submit.
Read
07
Startup Discounts
Credits and programmes worth applying for, with eligibility notes.
Read
08
Build Inspiration
What to build, sorted by who you are.
Read
27 resources
03
Entrepreneurship
27Validate, launch, market and monetise. Plus the finance, legal and reading that keeps a small business alive.
CourseFree
YC Startup School
Free structured course covering idea, MVP, users, growth and fundraising.
#course#startups#mvp
startupschool.org
GuideFree
Paul Graham Essays
The canon. Start with 'Do Things That Don't Scale' and 'How to Get Startup Ideas'.
#essays#ideas
paulgraham.com
GuideFree
Stripe Guides
Clear write-ups on incorporation, pricing, taxes and running an internet business.
#incorporation#pricing#tax
stripe.com
ToolPaid
Stripe
Payments, subscriptions, invoicing and tax handling for software businesses.
#payments#subscriptions
stripe.com
ToolPaid
Paddle
Merchant of record — they handle global sales tax and VAT so you don't.
#payments#tax#saas
paddle.com
ToolPaid
Lemon Squeezy
Simple checkout and licensing for digital products and indie SaaS.
#checkout#digital-products
lemonsqueezy.com
ToolPaid
Shopify
The default commerce platform when the product is physical, not software.
#ecommerce#storefront
shopify.com
ToolFreemium
Klaviyo
Email and SMS automation built around e-commerce customer behaviour.
#email#crm#automation
klaviyo.com
ToolFreemium
Resend
Developer-first transactional email with React templates and good deliverability.
#email#transactional
resend.com
GuideFree
Ahrefs Blog
Data-backed SEO tutorials — keyword research, backlinks, content strategy.
#seo#content#growth
ahrefs.com
ToolFreemium
Semrush
Keyword, competitor and backlink research for planning what to publish.
#seo#keywords#research
semrush.com
ToolFree
Google Analytics 4
Free traffic and conversion analytics, plus the Search Console pairing.
#analytics#conversion
analytics.google.com
CommunityFree
Product Hunt
Launch platform and a daily read on what people are actually building.
#launch#distribution
producthunt.com
CommunityFree
Indie Hackers
Revenue-transparent founder stories and a community that answers questions.
#bootstrapping#founders
indiehackers.com
CommunityFree
Hacker News
Where technical launches get judged honestly. Also a great validation signal.
#news#launch#feedback
news.ycombinator.com
CourseFree
MicroConf Talks
Bootstrapped SaaS talks on pricing, churn, positioning and staying small.
#saas#bootstrapping#pricing
microconf.com
NewsletterFreemium
Lenny's Newsletter
Product, growth and go-to-market playbooks from operators who ran them.
#product#growth
lennysnewsletter.com
NewsletterFree
First Round Review
Long-form operational advice on hiring, leadership and early company building.
#operations#leadership
review.firstround.com
NewsletterFreemium
Stratechery
Ben Thompson on tech strategy and business models — sharpens your positioning.
#strategy#analysis
stratechery.com
BookPaid
The Mom Test
How to talk to customers so they tell you the truth instead of being nice.
#customer-research#validation
momtestbook.com
BookPaid
Obviously Awesome
April Dunford's method for positioning — the highest-leverage marketing work.
#positioning#marketing
aprildunford.com
BookPaid
Zero to Sold
The full lifecycle of a bootstrapped business, from idea to acquisition.
#bootstrapping#exit
zerotosold.com
ToolFreemium
Notion
Docs, roadmap, CRM and wiki in one place — fine as a whole company's brain.
#docs#wiki#planning
notion.com
ToolFreemium
Linear
Issue tracking with taste. Fast enough that you actually keep it updated.
#project-management#issues
linear.app
ToolFreemium
Cal.com
Open-source scheduling — book discovery calls without the email ping-pong.
#scheduling#sales
cal.com
ToolFreemium
Tally
Free-form forms for waitlists, validation surveys and lead capture.
#forms#waitlist#surveys
tally.so
Know something that belongs here?
Send it over. If it holds up in a real project, it gets added to the wiki.