How to Restart a Side Project You Abandoned Months Ago

To restart a side project you abandoned months ago, don't open the editor and pick up the feature you stopped on. Spend the first session getting the project to run from a clean clone, and write down everything that breaks. Then check that your accounts and data still exist, look at whether anyone still uses it, and ship one small change within the first week. Re-entry is mostly archaeology and plumbing. Treat it that way and you are building again by session three.

This guide is for people with a day job and five to ten hours a week whose half-finished project has sat for three to twelve months. Platform facts below were read on the vendors' own pages in October 2026, so read them as "as of Oct 2026". The example near the end is made up. And this is not a post about whether the project deserves to live, or about motivation: if you are still deciding, use the guide on deciding whether to kill, pause, or double down on a side project first.

Should you restart it at all?

You need one honest reason, and it should fit in one sentence. "I still have the problem it solves." "Three people asked me what happened to it." Either is enough. "I feel guilty about it" is not, because guilt runs out around the second broken build.

Leave it dead if the reason you stopped is still true. If nobody wanted it and nothing has changed, a restart just spends the same evenings again. If life got busy and is now less busy, that is a different story.

That table is my judgement, not research. If you restart and then stall again around the third week, that is a separate, well-known problem, and there is a separate guide on keeping a side project alive through the week-three dip.

What should you check before you touch the code?

Give this twenty minutes, not an evening. You only want to know what still exists and what it costs you. Make a short list and tick it off:

• The domain. Is it still yours, and when does it renew?

• Hosting and database. Do the app and its data still exist where you left them? Free tiers are where this bites (details in the next section).

• Paid tools. Has anything been charging your card for months, or has a card expired and quietly downgraded something? If the bills look messy, the walkthrough on keeping your side project's monthly bills under $20 covers the full audit. Not today.

• Logins. Can you still get into the repo host, hosting dashboard, email provider and registrar? If not, note it and handle it separately; it should not block the local restart.

Write the results at the top of a new file in the repo. That file becomes your re-entry note.

What usually breaks after months away?

Your code did not change while you were gone. Everything around it did. Here is what tends to have moved, with real examples from vendor pages as of Oct 2026:

None of this means the project is bad. It is what happens to software that sits still while everything around it keeps shipping.

How do you get it running again from a clean clone?

Use a fresh clone in a new folder, not the old working copy on your laptop. The old copy hides local state you no longer remember: a filled-in env file, a local database, packages installed by hand. A clean clone shows what the repo actually needs.

1. Clone into a new folder and read the README first. If the README has no "how to run it" section, that is the first thing you will write tonight.

2. Use the runtime version the project was built on. Look for a version file (many projects keep one, such as .nvmrc, .python-version or .tool-versions) or the engines field in the package manifest. Install that version, even if it is old. Moving to a supported one is a separate, later step.

3. Rebuild the environment variables. If there is an example env file, copy it and fill it in. If there isn't, search the code for every place it reads an environment variable and write the example file now, with fake values and a one-line comment on each.

4. Create fresh development keys. Assume every old key is expired, revoked or tied to an account you no longer use. Make new test-mode keys.

5. Get some data in. Run the migrations and the seed script if one exists. If there is no seed script, add three or four fake records by hand and note what you had to create.

6. Run the tests, then the app. Click through the main thing the product does. Fix only what blocks it from starting.

7. Write every error down. Copy the message and what fixed it into the re-entry note.

A rule I use: if getting it to start takes more than two sessions, stop and write down exactly where it fails. It is usually one outside service or one version jump, and it deserves its own focused session.

How do you read your own old code without getting lost?

Past you left more clues than you think. Read them in this order, and keep notes as you go:

• The last 20 commits. Run git log --oneline -20 and read the messages from the bottom up. The last few usually tell you what you were in the middle of.

• Branches you never merged. Run git branch --sort=-committerdate to list branches with the most recently touched first (the git branch docs describe the sort option), and git branch --no-merged to see which ones never landed. Write one line about each.

• Stashes and uncommitted changes. Check git stash list and git status in the old working copy. Half-done work often hides here.

• TODO and FIXME comments. Search for them. A few will be warnings you really need.

• Your issue list or notes app. Open issues, a notes doc, a scrappy to-do file. Read them once, then close anything you would not do this month.

Read the code after it runs, not before. You understand old code much faster when you can poke at it.

What goes in a one-page re-entry note?

One page, in the repo, in plain words. Mine usually has these headings:

• What it does and why you're back, one sentence each.

• How to run it, the exact steps that worked from the clean clone.

• What broke on the fresh run and how each thing was fixed.

• Accounts: renewal dates and anything still being paid for.

• Half-done work: each open branch or stash with one line on what it was.

• Next three tasks, each small enough for one session.

• Not doing: the rewrite, the redesign, the big upgrade, anything else you are choosing to ignore for now.

The "not doing" list lets you leave old ideas alone without deleting them.

Is anyone still using it, and what do you owe them?

Before you plan any work, find out who is on the other end. Check your users table for recent logins, your support inbox, and whatever traffic numbers you already have. You only want a rough count, not a new analytics setup.

Then sort people into three groups. Active users are still using it, broken bits and all. You owe them a working product before anything new. Old signups joined a waitlist or tried it once months ago. Anyone still being charged comes first: check that before anything else, and if the thing they pay for is broken, fix it or stop charging.

If you plan to email old signups, keep it honest and short. In the US, the FTC's CAN-SPAM compliance guide says commercial email needs a clear way to opt out, a valid physical postal address, and opt-out requests honored within 10 business days. Other countries have their own rules, often stricter about consent. Not legal advice: when in doubt, only email people who asked to hear from you, and only once you have something to show.

What should the first session actually ship?

One small change that reaches production. Not the feature you stopped on, which is often the hardest thing in the project. Good first ships:

• Fix the thing that broke while you were away, such as the paused database or the dead export.

• Finish the smallest open branch, or delete it.

• Remove one feature nobody used, so there is less to keep alive.

• Deploy a tiny copy change to prove the pipeline still works.

My opinion: the first week should end with a deploy, however tiny. It proves the whole chain works, from laptop to live site, and turns "I'm restarting" into "I shipped something". If you can't deploy in the first week, the deploy pipeline is your first project.

Should you announce that you're back?

Not yet. A day-one announcement creates pressure and gives nobody anything. Ship quietly for two weeks first. If you have active users, send them one short note once the broken bits are fixed: what changed, what you are working on next, and how to reply. Any public post can wait until people have something to try, and should lead with that thing, not "I'm back".

How do you make the next pause cheap?

Pauses will happen again. The goal is not to never stop; it is to make stopping cheap. The habit that does this is a parking note: two or three lines you write at the end of every session, before you close the laptop.

Hemingway has a famous version of this for writers. In "Monologue to the Maestro", published in Esquire in October 1935, he wrote that "the best way is always to stop when you are going good and when you know what will happen next." (Open Culture's collection of Hemingway's writing tips quotes the passage, along with his advice to read back over your work before going on.) For a side project that means stopping while the next step is obvious, and writing that step down. Something like:

• Stopped at: the export button works, CSV header row is wrong.

• Next: fix the header order in the export function, then test with the seed data.

• Weird: the dev server needs a restart after changing env vars.

Keep it at the top of the re-entry note, so it is the first thing you see. Some people also leave a comment marked NEXT where they stopped. Two minutes at the end of a session can save two evenings later.

A made-up example: Tobiah and Lendwick

Everything here is made up: the person, the product and every number.

Tobiah is a QA engineer who built Lendwick, a small web app for keeping track of books you have lent to friends, with a Google Sheets export. In this story he stopped in February, when a release crunch at work ate his evenings, and opened the repo again in October, eight months later.

His one-sentence reason: two friends had asked if Lendwick still worked, because they were losing track of their own books. The account check found the domain renewing in five months, the free database paused but still restorable, and nothing being charged.

The clean clone took two sessions. The project had no version file, so he found the runtime version in an old CI config and pinned it. There was no example env file, so he wrote one with seven variables. The Google Sheets export failed with an auth error, because the old refresh token had not been used in months. All three problems went into his re-entry note.

Of 41 accounts, 6 had logged in during the last 90 days. He wrote to those six only, after the export was fixed on day 10, with three sentences: what was broken, that it works now, and what he would fix next. Two asked for the same thing, a reminder when a book has been out for a month, which became task one for week three.

He also left his first parking note: "Stopped at: reminder email drafted, not scheduled. Next: add the daily job. Weird: the seed script needs to run twice."

A 14-day restart plan

About five one-hour sessions a week. Timings are suggestions.

What are the common traps when restarting a side project?

• Rewriting from scratch. A rewrite feels like a fresh start and usually ends up as a second abandoned project. Get the old one running first.

• Upgrading everything before anything works. Several version jumps at once turn one problem into twenty.

• Starting with the feature you stopped on. It is often the hardest part of the project. Start with something you can finish.

• Emailing every old signup on day one. Fix things for active users first, and only email people who asked to hear from you.

• Skipping the parking note. Without it, the next pause costs you this whole process again.

FAQ

How long is too long to restart a side project?

There is no fixed number. A year-old project with a clean README can be easier to restart than a three-month-old one with no notes. The better question is whether the reason you stopped is still true.

Should I rewrite it from scratch instead?

Usually not at first. Get the existing code running and ship one change. If, after two weeks, the old code still fights you on every task, you will know exactly which parts to rebuild, and you will have a working version to compare against.

What if I can't remember why I built it?

Then the first job is to find out, not to code. Read your old commits, landing page and early messages to users, and write the one-sentence "what it does" line. If you still can't name a person who needs it, go back to the kill-or-pause question before spending more evenings.

Do I need to update all the dependencies before I start?

No. Run it on the versions it was built with first, so you are only fighting one problem at a time. If the runtime is past end-of-life and the app is public, moving to a supported version is worth its own planned session soon after, as a separate, small step.

Open the repo this week

An abandoned side project is not a failure. It is a half-finished thing with notes you haven't read yet. Give it one evening of plumbing, one page of notes and one small deploy, and you will know within two weeks whether it deserves the next month.

And when the restarted version is ready for people to try, share it on SideHunt so other builders and early users can find it.