# Lead magnet ideas for software developers

A developer’s lead magnet should save another developer a bad afternoon or help a non-technical buyer make a decision: an upgrade runbook, a code review checklist, a founder’s guide to hiring a freelancer. Here are ten briefs that open in Chapbook as starting points. Chapbook doesn’t run code, so test every example yourself before anyone copies it.

Updated 30 October 2026. Web page: https://chapbook.ink/ideas/lead-magnets-for-software-developers/

## A brief to start from

> A runbook for upgrading a production Postgres database to a new major version with little downtime: checking extensions, logical replication versus pg_upgrade, testing on a copy, the cutover, and rolling back, with commands from the notes I supply and no invented timings. Reader: a backend developer at a small company who is also the accidental DBA. Voice: terse and precise, a checklist with a one-line reason per step. I will test every command.

Open it in Chapbook: https://chapbook.ink/start/?type=lead_magnet&topic=A+runbook+for+upgrading+a+production+Postgres+database+to+a+new+major+version+with+little+downtime%3A+checking+extensions%2C+logical+replication+versus+pg_upgrade%2C+testing+on+a+copy%2C+the+cutover%2C+and+rolling+back%2C+with+commands+from+the+notes+I+supply+and+no+invented+timings.+Reader%3A+a+backend+developer+at+a+small+company+who+is+also+the+accidental+DBA.+Voice%3A+terse+and+precise%2C+a+checklist+with+a+one-line+reason+per+step.+I+will+test+every+command.&ref=ideas-lead-magnets-for-software-developers

## 10 ideas

1. **The upgrade runbook** (Lead magnet). A major version upgrade is a high-stakes job, done rarely and searched for carefully. A clear runbook shows your judgment to the very people who might hire you, or buy your tool, to help.
   Brief: A runbook for upgrading a production Postgres database to a new major version with little downtime: checking extensions, logical replication versus pg_upgrade, testing on a copy, the cutover, and rolling back, with commands from the notes I supply and no invented timings. Reader: a backend developer at a small company who is also the accidental DBA. Voice: terse and precise, a checklist with a one-line reason per step. I will test every command.
   Open it in Chapbook: https://chapbook.ink/start/?type=lead_magnet&topic=A+runbook+for+upgrading+a+production+Postgres+database+to+a+new+major+version+with+little+downtime%3A+checking+extensions%2C+logical+replication+versus+pg_upgrade%2C+testing+on+a+copy%2C+the+cutover%2C+and+rolling+back%2C+with+commands+from+the+notes+I+supply+and+no+invented+timings.+Reader%3A+a+backend+developer+at+a+small+company+who+is+also+the+accidental+DBA.+Voice%3A+terse+and+precise%2C+a+checklist+with+a+one-line+reason+per+step.+I+will+test+every+command.&ref=ideas-lead-magnets-for-software-developers-1
2. **What to know before you hire a developer** (Lead magnet). A founder hiring their first freelancer can’t judge the work and knows it. A fair guide meets them where they are stuck, and it filters out the clients who only want the cheapest quote.
   Brief: A guide for non-technical founders to hiring a freelance developer: writing a brief, reading a proposal, fixed price versus hourly, who owns the code, handover, and warning signs. Use only my own rates if I supply them. Reader: a founder who has a mockup, a budget and no technical co-founder. Voice: plain and fair, no jargon without an explanation, no invented prices, and it says to have a lawyer read any contract.
   Open it in Chapbook: https://chapbook.ink/start/?type=lead_magnet&topic=A+guide+for+non-technical+founders+to+hiring+a+freelance+developer%3A+writing+a+brief%2C+reading+a+proposal%2C+fixed+price+versus+hourly%2C+who+owns+the+code%2C+handover%2C+and+warning+signs.+Use+only+my+own+rates+if+I+supply+them.+Reader%3A+a+founder+who+has+a+mockup%2C+a+budget+and+no+technical+co-founder.+Voice%3A+plain+and+fair%2C+no+jargon+without+an+explanation%2C+no+invented+prices%2C+and+it+says+to+have+a+lawyer+read+any+contract.&ref=ideas-lead-magnets-for-software-developers-2
3. **A code review checklist for your team** (Lead magnet). Teams argue about reviews because nobody wrote down what they’re for. A short, opinionated checklist gets passed around a team, and carries your name into a group you’d never reach otherwise.
   Brief: A code review checklist for a small team: what a review is for, what to check in a pull request (behavior, tests, naming, failure modes, security basics), how to comment kindly, and what to leave to a linter, with a short reason for each. Reader: a tech lead whose team spends days arguing over style. Voice: opinionated and friendly, short examples in TypeScript, and no invented statistics.
   Open it in Chapbook: https://chapbook.ink/start/?type=lead_magnet&topic=A+code+review+checklist+for+a+small+team%3A+what+a+review+is+for%2C+what+to+check+in+a+pull+request+%28behavior%2C+tests%2C+naming%2C+failure+modes%2C+security+basics%29%2C+how+to+comment+kindly%2C+and+what+to+leave+to+a+linter%2C+with+a+short+reason+for+each.+Reader%3A+a+tech+lead+whose+team+spends+days+arguing+over+style.+Voice%3A+opinionated+and+friendly%2C+short+examples+in+TypeScript%2C+and+no+invented+statistics.&ref=ideas-lead-magnets-for-software-developers-3
4. **A thirty-day on-call workbook** (Workbook). Being put on call for the first time is frightening, and preparation is often thin. A workbook that builds it up gives engineering leads something to hand to new hires, with your name on it.
   Brief: A thirty-day workbook for an engineer's first on-call rotation: reading the alerts, finding the runbooks, a first practice incident, communicating during an outage, writing a blameless postmortem, and looking after yourself, with a short lesson and a page to fill in each week. Reader: a mid-level backend engineer going on call next month. Voice: second person, calm and practical, fictional incidents only.
   Open it in Chapbook: https://chapbook.ink/start/?type=workbook&topic=A+thirty-day+workbook+for+an+engineer%27s+first+on-call+rotation%3A+reading+the+alerts%2C+finding+the+runbooks%2C+a+first+practice+incident%2C+communicating+during+an+outage%2C+writing+a+blameless+postmortem%2C+and+looking+after+yourself%2C+with+a+short+lesson+and+a+page+to+fill+in+each+week.+Reader%3A+a+mid-level+backend+engineer+going+on+call+next+month.+Voice%3A+second+person%2C+calm+and+practical%2C+fictional+incidents+only.&ref=ideas-lead-magnets-for-software-developers-4
5. **How HTTPS works, in pictures** (Illustrated guide). Plenty of working developers have only a rough idea what happens in a TLS handshake. An illustrated guide to one such topic gets shared widely, and shows you can explain hard things simply.
   Brief: An illustrated guide to how an HTTPS request travels: DNS, TCP, the TLS handshake, certificates and what goes wrong when one expires, one picture per step, with a command to try at the end of each section. Reader: a self-taught web developer who has shipped sites for years and never quite understood it. Voice: friendly and exact. I will check every technical claim and every command, and the pictures show the idea only.
   Open it in Chapbook: https://chapbook.ink/start/?type=guide&topic=An+illustrated+guide+to+how+an+HTTPS+request+travels%3A+DNS%2C+TCP%2C+the+TLS+handshake%2C+certificates+and+what+goes+wrong+when+one+expires%2C+one+picture+per+step%2C+with+a+command+to+try+at+the+end+of+each+section.+Reader%3A+a+self-taught+web+developer+who+has+shipped+sites+for+years+and+never+quite+understood+it.+Voice%3A+friendly+and+exact.+I+will+check+every+technical+claim+and+every+command%2C+and+the+pictures+show+the+idea+only.&ref=ideas-lead-magnets-for-software-developers-5
6. **Git recoveries, in one repeating shape** (Collection). Everyone has broken a branch and searched in a panic. A reference in one repeating shape is what developers keep open in a tab, and it’s easy to pass on to the new person on the team.
   Brief: A collection of sixteen git recoveries, grouped into commits, branches, merges and rebases, and things pushed by mistake. Each entry has a fact list (the symptom, the command, how risky it is, how to check it worked), then a short paragraph. Use only commands from my notes. Reader: a junior developer who has just lost an afternoon's work and is afraid to touch anything. Voice: calm and a little funny. I will test every command.
   Open it in Chapbook: https://chapbook.ink/start/?type=collection&topic=A+collection+of+sixteen+git+recoveries%2C+grouped+into+commits%2C+branches%2C+merges+and+rebases%2C+and+things+pushed+by+mistake.+Each+entry+has+a+fact+list+%28the+symptom%2C+the+command%2C+how+risky+it+is%2C+how+to+check+it+worked%29%2C+then+a+short+paragraph.+Use+only+commands+from+my+notes.+Reader%3A+a+junior+developer+who+has+just+lost+an+afternoon%27s+work+and+is+afraid+to+touch+anything.+Voice%3A+calm+and+a+little+funny.+I+will+test+every+command.&ref=ideas-lead-magnets-for-software-developers-6
7. **A booklet on your freelance practice** (Brochure). Your clients often have to explain you to someone holding the budget. A short booklet on how you work and what you’ve specialized in does that better than a link to your GitHub profile.
   Brief: A short booklet for a freelance developer who rescues old Rails applications: the kinds of projects I take, how a first audit works, how I report progress, pricing as I describe it, and how to reach me. Use only the details I supply. Reader: a small company's operations lead whose only developer has just left. Voice: reassuring and plain, first person, no testimonials, no promised delivery dates.
   Open it in Chapbook: https://chapbook.ink/start/?type=brochure&topic=A+short+booklet+for+a+freelance+developer+who+rescues+old+Rails+applications%3A+the+kinds+of+projects+I+take%2C+how+a+first+audit+works%2C+how+I+report+progress%2C+pricing+as+I+describe+it%2C+and+how+to+reach+me.+Use+only+the+details+I+supply.+Reader%3A+a+small+company%27s+operations+lead+whose+only+developer+has+just+left.+Voice%3A+reassuring+and+plain%2C+first+person%2C+no+testimonials%2C+no+promised+delivery+dates.&ref=ideas-lead-magnets-for-software-developers-7
8. **A quarterly changelog for your users** (Newsletter). A changelog page is easy to ignore. A designed issue that explains what changed and why gives your users a reason to read it and stay subscribed, and gives prospects a view of how you build.
   Brief: A quarterly newsletter issue for users of a small developer tool: what shipped and why, one feature explained with a short example, a change that may break something, what we got wrong, and what is next. Use only the release notes I supply. Reader: a developer who installed the tool a year ago and has not updated it. Voice: brief, honest and technical, no marketing language.
   Open it in Chapbook: https://chapbook.ink/start/?type=newsletter&topic=A+quarterly+newsletter+issue+for+users+of+a+small+developer+tool%3A+what+shipped+and+why%2C+one+feature+explained+with+a+short+example%2C+a+change+that+may+break+something%2C+what+we+got+wrong%2C+and+what+is+next.+Use+only+the+release+notes+I+supply.+Reader%3A+a+developer+who+installed+the+tool+a+year+ago+and+has+not+updated+it.+Voice%3A+brief%2C+honest+and+technical%2C+no+marketing+language.&ref=ideas-lead-magnets-for-software-developers-8
9. **A pattern guide for your tool’s problem** (Lead magnet). A tool’s buyers often need the concept before the product. A vendor-neutral guide to the problem you solve teaches them the job, and it’s something a reader can share with their team.
   Brief: A vendor-neutral guide to making API retries safe: why retries duplicate work, idempotency keys, backoff and jitter, dead-letter queues, and how to test it all, with short code examples from the notes I supply. Reader: a backend developer whose payment job just ran twice. Voice: precise and friendly, fair to other tools, no invented benchmarks. I will test every example.
   Open it in Chapbook: https://chapbook.ink/start/?type=lead_magnet&topic=A+vendor-neutral+guide+to+making+API+retries+safe%3A+why+retries+duplicate+work%2C+idempotency+keys%2C+backoff+and+jitter%2C+dead-letter+queues%2C+and+how+to+test+it+all%2C+with+short+code+examples+from+the+notes+I+supply.+Reader%3A+a+backend+developer+whose+payment+job+just+ran+twice.+Voice%3A+precise+and+friendly%2C+fair+to+other+tools%2C+no+invented+benchmarks.+I+will+test+every+example.&ref=ideas-lead-magnets-for-software-developers-9
10. **The book on running a small software business** (Nonfiction book). Developers thinking of going out alone look for honest accounts. A book that covers the unglamorous parts gives you authority far beyond one framework, and it stays useful through stack changes.
   Brief: A practical book on running a one-person software business: choosing what to build, pricing, support, security and backups, taxes to ask an accountant about, and what to do when you are ill or on vacation, with composite fictional founders labeled as such. Reader: a senior developer with a side project and a day job. Voice: candid first person, dry humor, no income claims, no invented statistics.
   Open it in Chapbook: https://chapbook.ink/start/?type=nonfiction&topic=A+practical+book+on+running+a+one-person+software+business%3A+choosing+what+to+build%2C+pricing%2C+support%2C+security+and+backups%2C+taxes+to+ask+an+accountant+about%2C+and+what+to+do+when+you+are+ill+or+on+vacation%2C+with+composite+fictional+founders+labeled+as+such.+Reader%3A+a+senior+developer+with+a+side+project+and+a+day+job.+Voice%3A+candid+first+person%2C+dry+humor%2C+no+income+claims%2C+no+invented+statistics.&ref=ideas-lead-magnets-for-software-developers-10

## How to choose one

Decide who is meant to read it. If you freelance, your buyer may not be technical, so write the hiring guide or the booklet on how you work. If you make a developer tool, your reader is a developer who distrusts marketing, so write something useful with your product barely mentioned. If you want a following, explain one hard thing well.

Be specific about versions and stacks. A runbook for one database’s upgrade path is more use than “database best practices,” and you can test it. Chapbook doesn’t run anything, and a draft can invent a flag that doesn’t exist, so run every command and code sample, note the version you tested it against, and keep customer data, credentials and private code out of your sources.

## Every brief here opens in Chapbook

Each idea comes with the paragraph Chapbook needs to start: the topic, the reader and the voice. The brief at the top of this page is a starting point, not a book we have already made from it. Open it, change Postgres to the system you know best, and add your own notes and commands as sources. Chapbook then proposes titles and an outline for you to approve before anything is drafted.

## Questions

### Can Chapbook write about code?

It can draft explanations and short code examples, and Markdown code blocks carry through to the book. It doesn’t run or test anything, so a draft can include a command that fails or does damage. Test every example yourself before you publish.

### What makes a good lead magnet for developers?

A specific problem and a working fix. Developers quickly spot a guide that’s selling something, so a runbook, checklist or reference that helps without your product is more useful than a feature tour.

### Can I use my docs or blog posts as sources?

Yes. Add up to 10 sources, up to 5 of them web pages, and chapters can cite them inline. To keep your posts word for word, “I have a draft” reads up to 20 links into chapters for free. Keep secrets, customer data and private code out.