Invoicing SaaS for Freelance Designers
How to Open-Source the Pro Feature That Pulls Designers Into Your Paid SaaS
Synthesised by Generated by Diffmode's 576-vector synthesis engine · Last updated
Bonsai, Indy, and Plutio have zero Figma Community plugins because building one costs them a months-long product detour. You can list two in three hours of pure code extraction.
The short version
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You already have an invoice-template plugin in the Figma Community gallery — extract the Pro-tier scope-shift tracker into a second free plugin and double your indexed surface inside the only discovery channel converting designers right now.
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The gallery rewards plugin count plus recency over feature-completeness — Bonsai, Indy, and Plutio cannot list a Figma plugin without a months-long product detour, and you can ship a second one in 3 hours of pure extraction.
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Month 1 is for installs and stars (target 600–1,200 cumulative installs + 40–90 GitHub stars), not paid customers — seo_flywheel tactics build across Months 2–6.
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The tactic
What to actually run
The Two-Plugin Gallery Footprint
How to extract a Pro feature into a free plugin and double the only discovery channel converting designers right now.
The Figma Community plugin gallery has been doing the actual conversion work — 22 of 64 customers came from your existing invoice-template plugin, the dominant working channel by traceable count — while your Designer Twitter grind contributes only ~11. Stuck at $1.4K MRR. Bonsai keeps shipping generic invoice templates and cannot list a Figma plugin without a months-long product detour they refuse to take. Take the scope-shift tracker that currently sits behind your $19/mo Pro tier, extract the code into a standalone open-source plugin, and ship it as a second free listing in the gallery. Two free plugins from the same publisher, both linked, both linking back. Diffmode surfaces this kind of move routinely — give away the Pro feature that hands designers to the paid SaaS at the moment scope-creep frustration peaks.
Platform-transition arbitrage on its own is just plugin presence — Bonsai, Indy, and Plutio cannot list a Figma plugin without a months-long product detour, but a single plugin from you does not capture the full scope-shift JTBD. Open-source as a funnel only matters if it stacks with the platform: a closed plugin is freemium, but a public GitHub repo creates a backlink and code-search loop the closed-source incumbents cannot replicate. Stack them: TWO free plugins, both open-source on GitHub, each linking to the paid SaaS at the exact workflow moment the user feels pain. No new feature work. Pure extraction. The gallery rewards plugin count plus recency far more than feature-completeness.
Three named tools carry the whole stack: the Figma Plugin SDK, GitHub, and Designer Twitter. The Figma Plugin Developer Account is already paid (you used it for the invoice-template plugin); GitHub public repos are free; Designer Twitter is your existing presence. The plugin's manifest.json reads 'Scope Shift Tracker for Designers' — search-keyword-rich for the gallery's internal search. The in-plugin CTA reads 'Send tracked hours as invoice →' and opens the SaaS signup with UTM utm_source=figma-gallery&utm_medium=scope-tracker-plugin. According to the Figma Community gallery itself, more than 5,000 community plugins are listed — and zero of the top-15 freelancer-tooling plugins are owned by Bonsai, Indy, or Plutio.
Month 1 deliverable is plugin installs and GitHub stars, not paid customers. Target: 600–1,200 cumulative installs across both plugins, 40–90 stars on the new scope-tracker repo, 2 gallery listings, 2 GitHub repos, 1 awesome-list mention. Direct paid attribution Month 1 is 3–11 customers at the chained 4–8% × 8–14% × 12% gallery-install-to-paid math — pipeline tactics build, not close. By Month 3 the install base of 600–1,200 produces a stable weekly install rate of 200–400 (review-driven flywheel), yielding 12–28 net new paid Pro customers monthly at $19 ARPU — $228–$532 MRR delta, putting Month-6 MRR inside the $4,000 target band Diffmode tracked from your goal.
Expected Results
600–1,200 cumulative plugin installs + 40–90 GitHub stars (Month 1 PMF signal)
3–11 paying customers in Month 1 directly attributable at the 4–8% × 8–14% × 12% gallery-install-to-paid chain — implied $57–$209 MRR; by Month 3, install base settles into 200–400/week stable rate yielding 12–28 net new paid Pro customers monthly at $19 ARPU, $228–$532 MRR delta, putting Month-6 MRR inside the $4,000 target band
Budget Required
$0 incremental
Figma Plugin Developer Account already paid for the existing plugin; GitHub free for public repos; the founder distributes the open-source repos themselves; analytics already in stack
Time to Signal
Day 14
Plugin install count from the Figma Community gallery dashboard within 14 days of listing; healthy band is 80–200 installs by Day 14; kill criterion if < 40
Why this combination wins
- Stuck at $1.4K MRR. The Figma Community plugin gallery is your highest-converting channel — 22 of 64 customers came from the existing invoice-template plugin. But Bonsai's free templates eat your top-of-funnel and you cannot keep grinding Designer Twitter daily for the rest.
- The Figma gallery counts plugin count and recency over feature completeness, and the open-sourced repo creates a code-search backlink loop closed-source incumbents cannot replicate. Two free plugins from the same publisher means designers find you twice before they find Bonsai once.
Tools You'll Need
| Tool | Purpose | Cost | Setup |
|---|---|---|---|
| Figma Plugin Developer Account | Required to publish to the Figma Community gallery; the founder already has one for the existing invoice-template plugin | $0 (already paid) | 0 minutes (already set up) |
| GitHub (public repo) | Hosts the open-sourced scope-tracker plugin source; powers awesome-figma-plugins discovery and code-search backlinks; license stays MIT | Free for public repos | 10 minutes per repo |
| Figma Plugin SDK + manifest.json | Required scaffold for shipping a new plugin to the gallery; the founder has used it for the existing plugin so the template is reusable | Free | 30 minutes (template reuse) |
| Designer Twitter (founder's existing account) | Distribution channel for the launch announcement and Day-4 contextual replies; founder already has working presence | Free | 0 minutes (existing) |
| Plausible Analytics | Tracks click-through from plugin → SaaS signup link to validate the r2 conversion band; reads UTM utm_source=figma-gallery directly | Free tier or $9/mo | 15 minutes |
| Tally (or Typeform free tier) | One-question post-install survey embedded in the plugin sidebar — 'What scope-shift problem brought you here?' — collects qualitative validation for Week 2 iteration | Free plan available | 10 minutes |
Week 1: Day-by-Day Plan
Extract the scope-tracker code from the SaaS into a standalone plugin repo
- Open the existing Pro SaaS codebase, locate the scope-shift tracker module, and copy the Figma-side UI plus tracking-state code into a new local folder scope-shift-tracker-plugin/.
- Create a public GitHub repo scope-shift-tracker-plugin (free; web UI takes ~5 min) with MIT license and a 200-word README that explicitly says 'Free, open-source. Pairs with [SaaS name] for one-click invoicing of tracked hours.'
- Push the extracted code as the initial commit; add a single LINK-BACK.md documenting the in-plugin 'Send these hours as an invoice' link to the paid SaaS.
Public GitHub repo exists with extracted plugin code and a README that frames it as a free standalone tool with an optional paid upgrade path. No marketing yet.
Polish the plugin and prepare a manifest + screenshots for Figma Community submission
- Rewrite the plugin's manifest.json so the name reads 'Scope Shift Tracker for Designers' — search-keyword-rich for the gallery's internal search.
- Replace any SaaS-product references in the plugin UI with a single small 'Send tracked hours as invoice →' CTA that opens the SaaS signup page with UTM utm_source=figma-gallery&utm_medium=scope-tracker-plugin.
- Add a single Tally one-question survey embedded in the plugin sidebar to capture qualitative input for Week 2.
- Add 4 plugin gallery screenshots designed in Figma itself, reusing the existing brand — gallery search ranks plugins with full screenshot sets higher than those without.
The plugin runs locally inside the Figma desktop app, the link-back CTA opens the SaaS with proper UTMs, and 4 gallery-ready screenshots exist in the repo's /marketing/ folder.
Submit to Figma Community gallery + open the awesome-figma-plugins PR
- Submit the plugin to the Figma Community gallery via the Plugin Developer Account dashboard — 20-minute submission, automated review, usually publishes same-day.
- Push a final README polish with a 'Why open-source?' section + a clear link to the existing invoice-template plugin (cross-link the two-plugin footprint — the gallery rewards same-publisher install bundles).
- Post one announcement to Designer Twitter using Template 1 below; pin it to profile for the week.
- Submit a PR to the awesome-figma-plugins GitHub repo adding both plugins under a Freelancer Tooling section — the single highest-leverage backlink in the open-source-Figma space.
Plugin is live and searchable in the Figma Community gallery; Designer Twitter announcement is posted; awesome-figma-plugins PR is open.
Designer Twitter contextual replies + Dribbble forum amplification
- Reply (NOT cold-DM) to 5 Designer Twitter posts about scope creep, invoicing pain, or Bonsai frustration this week using Template 2 below — link to the new plugin only when topically relevant; never broadcast.
- Post one Dribbble forum reply in the existing freelance-billing thread the founder already participates in, framing the new plugin as 'a free thing I open-sourced this week, no signup needed' — keep the link in the second sentence, not the first.
- Track every link click via the UTM-tagged signup URL in Plausible — confirm Day-1 to Day-4 attribution chain is wired correctly.
5 contextual Twitter replies published, 1 Dribbble forum mention live, click-through tracking confirmed working in the Plausible dashboard.
Pull initial signal + draft the Week 2 decision
- Pull plugin install count from the Figma Community gallery dashboard, GitHub stars from the new repo, click-through count from Plausible, and trial-signup count from the SaaS analytics — log all four in a single sheet.
- Compare against kill criteria (≥ 40 installs by Day 14; ≥ 80 by Day 14 for healthy band) — only 2.5 days of gallery exposure by EOD Friday, so the Week-1 read is directional only; the formal kill check is at Day 14.
- If installs are tracking < 5/day on average, draft a Week 2 pivot to awesome-list outreach + 3 designer-podcast appearances; if tracking ≥ 10/day, draft a Week 2 plan to ship plugin v1.1 with one community-requested feature pulled from Tally.
A one-page Week 1 signal log exists, a Week 2 decision is on paper (continue / pivot / scale), and the founder knows which path they are committing to Monday morning.
Templates
Designer Twitter launch announcement (Day 3)
Day 3 — to announce the plugin to the founder's existing Designer Twitter audience without sounding like a launch promo.just open-sourced a small Figma plugin I built for myself: [LINK to GitHub repo] it tracks scope shifts on a project file — when a client asks for 'one more revision' you can timestamp it, tag the file, and later turn those tagged moments into invoice line items. free, no signup, MIT license. pairs with [SaaS name] if you want one-click invoicing, but the plugin works standalone. if you want to see it before installing → [LINK to gallery listing] (reply with the most absurd scope-shift you've had this year, I'll add the worst ones to the README's 'real-world cases' section)
Designer Twitter contextual reply (Day 4)
Day 4 — replying to existing Designer Twitter posts about scope creep, invoicing pain, or Bonsai/Indy frustration. Never cold-DM. Only reply when the original post is genuinely on-topic within the last 7 days.ran into this exact thing — that's why I built a scope-shift tracker plugin for Figma last week and open-sourced it. drops a timestamp on the file every time scope changes, then exports the timeline. GitHub: [LINK] Figma gallery: [LINK] free, MIT, no email gate. happy to add features people ask for — drop a GitHub issue if there's a workflow it's missing.
Week 1 Checkpoint
By end of Week 1, you should have a published plugin in the Figma Community gallery, a public GitHub repo, an open PR on awesome-figma-plugins, and a Designer Twitter announcement that doubles as the Day-4 contextual-reply seed.
- ✓Plugin live and indexed in the Figma Community gallery (search-test the keyword 'scope shift' and the plugin appears in results)
- ✓GitHub repo public with at least 1 README polish + MIT license + 4 screenshots in /marketing/
- ✓PR open to the awesome-figma-plugins curated list under a Freelancer Tooling section
- ✓80–200 plugin installs on the new scope-tracker plugin by end of Day 14 (only 2.5 days of gallery exposure by Friday EOD; the formal 14-day kill check is the binding read)
- ✓≥ 1 trial signup attributable to the utm_source=figma-gallery UTM
When to pivot
If installs after Day 14 are < 40 (half the low-end declared band), pivot Week 2 toward awesome-list outreach + 3 designer-podcast appearances instead of shipping plugin v1.1. Do not double down on Designer Twitter paid promotion — the existing $200 promoted-post test produced 1 paid customer in your founder data.
Weeks 2+: Scaling Schedule
| Week | Focus | Tasks | Time |
|---|---|---|---|
| Week 2 | Iterate on plugin v1.1 + amplify the OSS repo | Ship plugin v1.1 with the most-requested feature from the Tally survey responses — the gallery rewards recency and a v1.1 release within 14 days bumps gallery rank., Open 5 issues on the GitHub repo asking the community for feature requests; reply to every install-driven Tally response personally., Submit the GitHub repo to 3 designer-tooling newsletters (Sidebar.io, Designer News, UX Tools weekly). | ~16 hours total |
Read before you ship
Caveats
Week 1 is a 16-hour single push (3 + 4 + 3 + 3 + 2 + small spillover) on top of the founder's 25 hrs/week growth budget. If the design-freelance side gig spikes in Week 1, plugin v1.1 in Week 2 slips and the gallery-rank window narrows; protect the 16 hours. Code-extraction risk: the scope-shift tracker module currently lives inside the Pro tier; cleanly extracting it without breaking the existing paid feature requires a 30-minute regression test before publishing the standalone plugin. If extraction breaks the paid version, churn risk on the 13 existing Pro-tier customers is real. Plugin gallery review is automated but not instantaneous in edge cases — if manifest.json fails compliance (uncommon for an experienced submitter, but still possible), the publish slips by 24–72 hours, dragging the Week 1 measurement window. The $250/mo marketing budget covers tool subscriptions only — there is no room for paid Designer-Twitter promotion or sponsored newsletter slots; the plugin must reach the gallery's organic install velocity on its own merits. Skill gap context: ad-campaign skill is rated Limited, so do not pivot Week 2 toward paid Designer-Twitter promotion if the plugin underperforms — pivot toward awesome-list outreach + 3 designer-podcast appearances, both of which fit the in-pocket content-writing skill. The kill criterion below in Anti-Patterns is the safety valve; if Day-14 installs come in below 40 and Week-2 awesome-list outreach also fails, the tactic is wrong for the audience and the founder reverts to the existing single-plugin loop while testing a different second channel.
Closest analogue
Case study: Deployment from Scratch (Josef Strzibny)
Josef Strzibny quit a dev-team-lead role at a small startup in 2018 with no following and a back injury. He chose to write a technical book about Linux deployment fundamentals to stay close to his profession — Deployment from Scratch — self-published through Markdown + LaTeX + Pandoc, published an alpha 2.5 years in to validate buying intent, and crossed $40,000 in lifetime revenue (about $1,420/month average) by the time he was profiled. His blog and the Ruby subreddit were the only acquisition channels. The single highest-revenue day came from a Hacker News post that hit 300+ upvotes and sold 100 copies in a day; his best month was December 2021 at $8,930 in sales. Josef's discovery channel (the blog plus Ruby subreddit) is the same move as your Figma Community gallery: he shipped his free content (the blog, the Ruby-subreddit post) into the channel where his audience already gathered, and the channel itself served as the backlink and discovery surface for the paid book. The Figma Community gallery is your equivalent of his blog plus Ruby subreddit — a discovery surface where a free artifact (the open-source scope-tracker plugin) hands the user to the paid product (the SaaS) at the precise moment they hit the workflow pain. Josef also shipped a second product, Business Class — a Rails SaaS starter template — to extend his reach without abandoning his existing audience; doubling your gallery footprint with a second plugin is the same move at the same stalled-founder stage. The founder-decision parallel is exact: Josef was at $1,420/month when he was profiled, the same MRR you are at, choosing whether to commit to one repeatable channel or keep dabbling. He committed to the blog plus Ruby-subreddit loop and shipped a second product into the same channel. The recurring habit of shipping free artifacts into the audience's channel is what built into his $40K lifetime-revenue product, and the same habit on the Figma gallery surface is what carries your tactic.
Failure modes
Anti-patterns
Do not rebuild the scope-shift tracker from scratch — extract the existing Pro-tier code as-is. Rebuilding adds 8+ hours to Week 1 with zero gallery-rank benefit, because the gallery rewards listing date and install velocity, not code novelty. Do not gate the plugin behind email signup. Gating breaks the open-source funnel — the standalone plugin must be fully usable for free; the SaaS signup link only fires when the user clicks 'Send tracked hours as invoice'. Do not cold-DM 200 designers about the plugin launch. The audience already burned the 2-month cold-email-to-designer-agency-leads test ($0 conversions in your founder-input). The Day-4 Designer Twitter loop is contextual replies only — never broadcast cold. Do not submit to 12 awesome lists. The single high-leverage one is awesome-figma-plugins; submitting to awesome-saas, awesome-design-tools, and awesome-freelance-tools dilutes your maintainer signal and reads spammy. Do not run paid Designer-Twitter promotion. The $200 Twitter promoted-post test in your founder-input produced 1 paid customer at $200 spend — paid Twitter does not build for this audience. Do not skip the 30-minute regression test on the Pro tier before publishing the extracted plugin standalone; breaking the existing 13 Pro-tier customers is the highest-impact own-goal in this playbook. Do not extract a second feature in Week 1 just because extraction is fast — Week 2's plugin v1.1 release on the same scope-tracker plugin earns more gallery rank than a third half-finished plugin would.
Adjacent playbooks
Where to look next
Run it against your numbers
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