The authors conducted 30 semi-structured, in-depth interviews with professionals working within free and open-source software communities worldwide. The first round of interviews is conducted in face-to-face settings during the Euro Foss4G conference in Mostar, Bosnia and Herzegovina. The second round of interviews is conducted online. Each interview lasts from 60-80 mins. The interview transcripts are analyzed with the software of MAXQDA. Interview questions are asked about the communication and collective experiences of collaborating with working professionals working with free and open-source software for geospatial (Foss4G) technologies. Particularly, the individual motives and collaboration experiences from the cross-cultural perspectives are examined. Further, interviewees were also asked to describe how their personal experiences impacted their perception of community and a sustainable community culture. Insights and findings from the interviews are discussed.