How I Grew My Open Source SaaS to $17K/month

Open Source Marketing & Building a SaaS: A Deep Dive with Nevo

Key Concepts:

• Open Source: A development methodology where source code is publicly accessible, allowing for collaboration and modification.
• SaaS (Software as a Service): A software distribution model where applications are hosted by a provider and made available to customers over the internet.
• Distribution: The process of getting a product into the hands of users, often considered more crucial than the product itself.
• Self-Hosting: Allowing users to download and run the software on their own infrastructure.
• MRR (Monthly Recurring Revenue): A key metric for SaaS businesses, representing predictable revenue generated each month.
• Churn Rate: The percentage of customers who cancel their subscriptions within a given period.
• GitHub: A web-based platform for version control, collaboration, and open-source software development.
• Bootstrapped: Building a business using personal savings and revenue, without external funding.

I. Posties: A Case Study in Open Source Success

Nevo, the founder of Posties, a social media scheduling tool, generates $17,000 in MRR leveraging an open-source model. Posties supports scheduling posts across 25 social media platforms and offers a tiered SaaS subscription model (Standard, Team, Pro, Ultimate) with pricing varying based on features and channel count. The core principle is to encourage users to start with the Standard package and upsell based on advanced features.

Currently, Posties has 472 subscribers with a 19% churn rate. Since August 2025, they’ve acquired 3,830 trials, converting at a rate of 21%. Crucially, the open-source version of Posties is functionally identical to the SaaS offering, allowing developers to self-host the application. Detailed documentation is provided to facilitate self-hosting. Nevo emphasizes that open source provides a “blue ocean” opportunity in a saturated market, enabling differentiation through transparency and rapid feedback.

II. Nevo’s Journey into Open Source

Nevo’s entry into the open-source world stemmed from his experience working on an open-source infrastructure tool for notifications. He witnessed a project grow from zero to 32,000 stars on GitHub within two years, highlighting the potential for rapid growth. This experience led him to consult with other companies on open-source strategies for a year before deciding to build Posties as an open-source project, driven by a desire to return to product development.

III. The Open Source Playbook: A Step-by-Step Guide

Nevo outlined a comprehensive playbook for launching and growing an open-source project, divided into three key stages:

A. Preparation (Treat GitHub as Your Landing Page):

1. GitHub Optimization: Treat the GitHub repository as a primary marketing landing page, focusing on clarity and user understanding. Emulate successful open-source projects like Posties for structure and content.
2. License Selection: Choose an appropriate open-source license (MIT, Apache 2, or AGPL3) based on project goals.
3. Issue Creation: Pre-populate the GitHub repository with issues outlining desired features or improvements to encourage developer contributions.

B. Traffic Generation (The Launch):

1. Account Setup: Register accounts on HackerNews, Reddit (and build karma), Lemmy (a Reddit alternative particularly strong for open source), Dev.to, Medium, and Hackernoon.
2. Content Creation: Write articles on Dev.to, Medium, and Hackernoon explaining the project, its benefits, or comparing it to existing solutions. Focus on SEO-optimized titles and cover images.
3. HackerNews Submission: Submit the project to HackerNews with the format "Show [Project Name] [GitHub Link]".
4. Reddit Engagement: Post on /r/selfhosted and relevant subreddits (e.g., /r/webdev, /r/programming, AI-related subreddits) with a humble, “building in public” tone, requesting stars. Repeat with new versions.
5. Cross-Promotion: Share the project on existing channels like X (Twitter), LinkedIn, and email newsletters.

C. Sustained Growth:

• Timing: Execute all five steps within the same week to maximize impact and increase visibility in trending feeds.
• Community Engagement: Actively engage with the community on Discord, responding to questions and feedback.

IV. Technical Stack & Business Operations

Posties’ technical infrastructure includes:

• Hosting: Railway (backend), Vercel (marketing website - Next.js application).
• SEO: Semrush and Ahrefs (limited subscription).
• Email: Resend.
• Storage: Cloudflare R2.
• Short Links/Affiliate Program: Dub.co.
• Analytics: Flossible.
• AI Tools: OpenAI & FAI (image/text generation). Translated (video conversion). Corser (AI assistance).
• IDE: WebStorm.
• Newsletter: Beehive (headless).
• Customer Support: Discord.
• Monitoring: Sentry.
• CI/CD: GitHub Actions.

Nevo reports an 80% profit margin. He leverages free tiers for open-source projects where available (GitHub Copilot, Sentry).

V. Key Arguments & Perspectives

Nevo argues that in a world where code is increasingly commoditized (due to AI code generation), brand is the primary differentiator. Open source is a powerful tool for building brand recognition, particularly for bootstrapped founders seeking free distribution. He emphasizes the importance of learning marketing fundamentals before building a product and cautions against jumping directly into B2C without a solid understanding of distribution. He believes that focusing on B2B initially can be a more effective strategy.

He also highlights the value of developer contributions, not just for code improvements but also for brand advocacy, user-generated content, and SEO benefits. He stresses that self-hosting and enterprise support are key monetization opportunities for open-source projects.

Quote: “The only thing that is winning usually is brand. And I've seen so many people come and copy Posties and self-host it somewhere as a totally different solution just competing with me. And I like I'm so stressed and after checking this one week two two weeks later I see that they just abandoned the project because there is no way that you are the brand.” – Nevo

VI. Data & Statistics

• Posties MRR: $17,000
• Posties Subscribers: 472
• Posties Churn Rate: 19%
• Trials (since August 2025): 3,830
• Trial-to-Conversion Rate: 21%
• Social Media Channels Supported: 25
• Semrush/Ahrefs Cost: $20/month
• Translated Cost: $600/month
• Profit Margin: 80%

Conclusion:

Nevo’s success with Posties demonstrates the viability of the open-source SaaS model. His detailed playbook provides actionable insights for founders looking to leverage open source for growth. The key takeaways are the importance of strategic marketing, community engagement, and building a strong brand. In a competitive landscape, open source offers a unique opportunity to differentiate, attract developers, and ultimately, build a sustainable business.