# Rafael Vieiras (@rafaelvieiras) on x

- id: koinon:creator:x_rafaelvieiras
- url: https://koinonlink.com/kol/x/rafaelvieiras
- schema_version: 1.4

## Identity
- platform: x
- handle: rafaelvieiras
- platform_url: https://twitter.com/rafaelvieiras
- website: https://rafaelvieiras.com
- country: Brazil
- entity_type: creator
- person_id: Cross-platform identity not resolved for this creator.

## Reach
- followers: 970
- following: 262
- posts_total: 431
- posts_observed: 1
- posts_per_day: 0.07
- account_age_days: 6199
- verified: false
- size_tier: nano

## Engagement
- status: peak_post_only
- peak_post_engagement_rate: 0.00103
- best_post_interactions: 1
- measurement_source: x_post_interactions
- measurement_formula: interactions on one post — likes, or likes + reposts + replies depending on the discovery path (the two are not distinguishable in the stored data)
- comparable_pool: peak_interactions
- status_note: We have only the single best observed post, so no mean exists. peak_post_engagement_rate is an UPPER BOUND, systematically higher than an average — never compare it against an average rate.
- unit_note: engagement_rate and peak_post_engagement_rate are ratios (0-1); avg_interactions_per_post and best_post_interactions are absolute counts. Read status before reading any number: a null rate has several different causes and status says which one applies here.

## Content
- category: software
- subcategory: devtools
- category_confidence: 0.85
- category_source: derived_from_recent_content
- topics: Open source Tauri v2 apps, Speech-to-text and AI tooling, SaaS and game development, JS/TS/GO tech stacks
- bio: Working on https://t.co/ozDSQajeCm | 🛠️ Building SaaS and Games 👾 | ⚡ Using: JS/TS/GO 🚀 | 👨‍💻 Dev Since 2008

## Audience (inferred)
- status: present
- description: Software developers and indie hackers focused on building SaaS, desktop apps with Tauri, and lightweight AI tools like speech-to-text
- roles: dev
- seniority: practitioner
- pain_points: Creating low-memory, efficient speech-to-text solutions without heavy dependencies, Open sourcing personal projects while ensuring easy integration with external services, Balancing side projects in AI or games with professional development work
- posts_analysed: 4
- confidence: 0.4

## Commercial (inferred)
- audience_buyer_fit: 1
- promotion_intent: 0.9
- open_to_collaboration: false
- contact: Koinon does not publish creator contact details.

## Quality signals
- authenticity_score: 49
- authenticity_basis: engagement_observed
- credibility_score: 49
- flagged_for_review: false
- koinon_bd_grade: B — measures Koinon partner-outreach fit, not creator quality
- interpretation: Signals for triage, not verdicts. A flag means the profile is worth a manual check.

## Evidence
- [x_rafaelvieiras#69b7fa4c] I made a personal speech-to-text software with Tauri v2, and now I'm going to turn this open source. This was made for my personal necessities, a low-memory one with an easy switch to external providers and local models and with rich post-processing using LLMs. #rust #tauri #ts h (https://twitter.com/rafaelvieiras/status/2071693533602304485)
- [x_rafaelvieiras#57efa86b] I'm working to open source my personal speech-to-text software. This was made for my personal necessities, a low-memory software with an easy switch to external providers and local models and with rich post-processing using LLMs. It's 100% free and open! #STT #OpenSource #rust ht
- [x_rafaelvieiras#4061c38f] Fable 5 was released in Brazil yesterday, and I spent the early hours of the morning playing around with it. The model is amazing, but the harness shipped with it on Claude Code is the nuts! #claudecode #fable5 #habbo #habbohotel https://t.co/IEV0jVZHIc
- [x_rafaelvieiras#408a164f] Today I delivered a usage system

## Provenance
Every inferred field below carries how it was produced. Facts stay facts; inferences stay inferences.

- audience.description: source_type=ai_inferred, confidence=0.4, freshness_days=68, method=llm_persona_from_recent_content
- audience.roles: source_type=ai_inferred, confidence=0.4, freshness_days=68, method=llm_persona_from_recent_content
- audience.seniority: source_type=ai_inferred, confidence=0.4, freshness_days=68, method=llm_persona_from_recent_content
- commercial.audience_buyer_fit: source_type=ai_inferred, confidence=0.6, freshness_days=81, method=llm_scorer — Relative signal within Koinon indexing, not a market-wide score.
- commercial.promotion_intent: source_type=ai_inferred, confidence=0.6, freshness_days=81, method=llm_scorer
- quality.anomaly_flags: source_type=heuristic, confidence=0.5, freshness_days=116, method=profile_snapshot_and_engagement_ratio_heuristic — Means "worth a manual check", NOT confirmed fraud. Flags can be wrong and are not a verdict about the person.
- quality.authenticity_score: source_type=heuristic, confidence=0.5, freshness_days=81, method=Profile-shape heuristic from a single snapshot (follower count, following ratio, account age, posting volume, verification), reduced for engagement red flags where post engagement was collected. Where only a follower count is available the score saturates at 58. — The input set differs by platform; do not compare this score across platforms.
- quality.koinon_bd_grade: source_type=ai_inferred, confidence=0.5, freshness_days=116, method=llm_partner_fit_classifier + fit_score >= 0.6 AND authenticity >= 60 => A; fit_score >= 0.4 AND authenticity >= 45 => B; else C. authenticity < 30 or a promotional-pattern flag => quarantine. — Koinon partner-outreach fit, not creator quality.
- reach.followers: source_type=observed, confidence=0.95, freshness_days=116, method=platform_profile

## Freshness
- profile_checked_days_ago: 116
- content_analysed_days_ago: 81
- audience_updated_days_ago: 68

## AI retrieval
- indexing_requests: 11
- user_triggered_requests: 0
- note: Being indexed in bulk is not the same as being retrieved to answer a question.

## This profile
- Claim or correct: https://koinonlink.com/claim?k=x_rafaelvieiras
- Request removal: https://koinonlink.com/claim?k=x_rafaelvieiras
- Terms: https://koinonlink.com/for-ai